Articles | Volume 2, issue 2
https://doi.org/10.5194/ms-2-197-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/ms-2-197-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Review article
| 
17 Oct 2011
Review article |
| 17 Oct 2011
Basic principles and aims of model order reduction in compliant mechanisms
M. Rösner
Institute for Mechanics, Helmut-Schmidt-University/University of the Federal Armed Forces Hamburg, Holstenhofweg 85, 22043 Hamburg, Germany
R. Lammering
Institute for Mechanics, Helmut-Schmidt-University/University of the Federal Armed Forces Hamburg, Holstenhofweg 85, 22043 Hamburg, Germany
Related subject area
Dynamics and Control
Simulated vibration characterization of the aero-turbine engine vibration isolation system under broadband random excitation
Position control of a soft pneumatic actuator based on the pressure parameter feedback model (PPFM)
High-precision velocity control of direct-drive systems based on friction compensation
Research on the optimal speed of vehicles passing speed bumps on the highway based on an immune algorithm
Improved strategies of the Equality Set Projection (ESP) algorithm for computing polytope projection
A Lie group variational integrator in a closed-loop vector space without a multiplier
Improved flux linkage observer for position estimation of permanent magnet synchronous linear motor
Sliding mode control of electro-hydraulic servo system based on double observers
Dynamic analysis of a box-structured satellite deployment mechanism with self-actuated torsion joints
A novel generalized sliding mode controller for uncertain robot manipulators based on motion constraints
Swing-up control of double-inverted pendulum systems
Development of pedestrian collision avoidance strategy based on the fusion of Markov and social force models
Stochastic stability and the moment Lyapunov exponent for a gyro-pendulum system driven by a bounded noise
Application of cell mapping to control optimization for an antenna servo system on a disturbed carrier
Structural design and jumping motion planning of the jumping leg inspired by a goat's hindlimb
Gear injury equilibrium-oriented self-adjusted shifting strategy and advanced servo control
Robust trajectory tracking control for collaborative robots based on learning feedback gain self-adjustment
Intelligent vehicle obstacle avoidance path-tracking control based on adaptive model predictive control
Study on the vibration control method of a turboshaft engine rotor based on piezoelectric squeeze film damper oil film clearance
Composite synchronization of three inductor motors with a circular distribution by a fuzzy proportional–integral–derivative method in a vibration system
Decoupling active disturbance rejection trajectory-tracking control strategy for X-by-wire chassis system
A piezoelectric energy harvester for human body motion subjected to two different transversal reciprocating excitations
A feasibility and dynamic performance analysis of hydromechanical hybrid power transmission technology for wind turbines
A novel mathematical model for the design of the resonance mechanism of an intentional mistuning bladed disk system
Design and experiment of magnetic navigation control system based on fuzzy PID strategy
Adaptive sliding-mode control for improved vibration mitigation in civil engineering structures
Nonlinear characteristics of the driving model of the coaxial integrated macro–micro composite actuator
Milling chatter recognition based on dynamic and wavelet packet decomposition
A new sensorless control strategy of the PMLSM based on an ultra-local model velocity control system
Dynamic and sliding mode control of space netted pocket system capturing and attitude maneuver non-cooperative target
A comparative study of the unscented Kalman filter and particle filter estimation methods for the measurement of the road adhesion coefficient
Autonomous vehicle trajectory tracking lateral control based on the terminal sliding mode control with radial basis function neural network and fuzzy logic algorithm
Research on adaptive speed control method of an autonomous vehicle passing a speed bump on the highway based on a genetic algorithm
Dynamic modeling of a metro vehicle considering the motor–gearbox transmission system under traction conditions
Adaptive multiswarm particle swarm optimization for tuning the parameter optimization of a three-element dynamic vibration absorber
Modelling and predictive investigation on the vibration response of a propeller shaft based on a convolutional neural network
Priority flow divider valve and its dynamic analysis using various hydraulic drive systems: a bond graph approach
Payload-adaptive iterative learning control for robotic manipulators
Optimal sensor placement and model updating applied to the operational modal analysis of a nonuniform wind turbine tower
Analysis of divergent bifurcations in the dynamics of wheeled vehicles
Constraint-following control design for the position tracking of a permanent magnet linear motor with inequality constraints
Study on multi-degree of freedom dynamic vibration absorber of the car body of high-speed trains
Design of a steering mechanism for the three-wheel tilting motorcycle
Review article: A comprehensive review of energy management strategies for hybrid electric vehicles
A new type of auxiliary structure for tunnel-surrounding rock support – composite cantilever support structure
Establishment and analysis of nonlinear frequency response model of planetary gear transmission system
Horizontal vibration response analysis of ultra-high-speed elevators by considering the effect of wind load on buildings
Dynamic behaviour of a planetary reducer with double planet gears
Low-harmonic trajectory synthesis using trajectory pattern method (TPM) for high-speed and high-precision machinery
Tooth surface modification of double-helical gears for compensation of shaft deflections
Huawen Peng, Bo Zou, Jingyun Yang, Rong Fu, Xingwu Ding, Da Zhang, and Guangfu Bin
Mech. Sci., 15, 461–472, https://doi.org/10.5194/ms-15-461-2024, https://doi.org/10.5194/ms-15-461-2024, 2024
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This study explores the actual demand of wide-frequency vibration isolation and low-frequency shock resistance of a vibration isolation system for complex external excitation of the aircraft turboprop engine. The performance of a type of turbo-propeller engine vibration isolation system at a 1.5–2000 Hz vibration frequency is investigated by combining simulation and experimental research. It provides the test basis and idea for the optimization of the aero-engine vibration isolation system.
Yuwang Liu, Dongyang Zhang, Yi Yu, Peng Chen, Wenping Shi, and Dongqi Wang
Mech. Sci., 15, 407–416, https://doi.org/10.5194/ms-15-407-2024, https://doi.org/10.5194/ms-15-407-2024, 2024
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This paper proposes a new positional control method for soft pneumatic actuators. The pressure parameter feedback model (PPFM) of the airbag is obtained by adjusting the pressure input through a proportional valve, collecting the air pressure inside the airbag and obtaining the airbag expansion height. The pressure input signal is changed according to the PPFM of the airbag to control the position of the soft pneumatic actuator.
Baoyu Li, Xin Xie, Bin Yu, Yuwen Liao, and Dapeng Fan
Mech. Sci., 15, 385–394, https://doi.org/10.5194/ms-15-385-2024, https://doi.org/10.5194/ms-15-385-2024, 2024
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Friction is widely present in moving mechanical systems, and it has a negative impact on the performance of mechanical systems, such as tracking errors during low-speed motion. To overcome the impact of friction on the control accuracy of the system, this paper proposes a dynamic continuous friction model based on numerous current friction models. Based on this friction model, the velocity control mode of the direct-drive system is compensated for, and good results have been achieved.
Zhiyong Yang, Ruixiang Zhang, Zihang Guo, Jieru Guo, and Yu Zhou
Mech. Sci., 15, 315–330, https://doi.org/10.5194/ms-15-315-2024, https://doi.org/10.5194/ms-15-315-2024, 2024
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The speed of vehicles has a significant impact on the safety and comfort of driving. When vehicle passes over different speed bumps, it becomes a practical research topic to choose the appropriate speed at which to pass over. In this paper, we establish a multi-objective optimisation method through vehicle dynamics feedback combined with an immune algorithm and then design and carry out the solution process of the vehicle multi-objective optimisation problem.
Binbin Pei, Wenfeng Xu, and Yinghui Li
Mech. Sci., 15, 183–193, https://doi.org/10.5194/ms-15-183-2024, https://doi.org/10.5194/ms-15-183-2024, 2024
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Projection is one of the most fundamental operations of polytopes, and it is widely used in the field of control and optimization. The Equality Set Projection algorithm is a promising method for projection calculation, but it has some shortcomings under the condition of dual degeneracy In this paper. Two improvements are presented to make the Equality Set Projection algorithm become simpler, faster, and easier to implement in the case of dual degeneracy.
Long Bai, Lili Xia, and Xinsheng Ge
Mech. Sci., 15, 169–181, https://doi.org/10.5194/ms-15-169-2024, https://doi.org/10.5194/ms-15-169-2024, 2024
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The paper shows that the attitude vector expression for the rod can decrease the difficulty of derivation and expression of the dynamics model. Variation theory can package the closed-loop pose–attitude constraint in the dynamics model, so the constraint does not need to be considered explicitly. Using the geometry modelling method to build the dynamics model of a four-bar mechanism can avoid the repetitive operation of the closed-loop constraint.
Wenbin Yu, Guolai Yang, Liqun Wang, Darui Lin, and Ahmed Al-Zahrani
Mech. Sci., 15, 99–109, https://doi.org/10.5194/ms-15-99-2024, https://doi.org/10.5194/ms-15-99-2024, 2024
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In this paper, a sliding-mode observer is combined with the voltage model of the motor to construct a closed-loop estimation of the flux linkage so that the influence of external disturbances on the system can be compensated for by the algorithm itself. On the one hand, this improves the anti-interference ability of the system. On the other hand, it also makes the calculation of flux linkage more accurate under an inaccurate initial position.
Xiaoyu Su and Xinyu Zheng
Mech. Sci., 15, 77–85, https://doi.org/10.5194/ms-15-77-2024, https://doi.org/10.5194/ms-15-77-2024, 2024
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An electro-hydraulic servo system has the characteristics of high control accuracy and fast response so it is widely used in industrial control fields. To address the external load and disturbance problems faced in actual engineering, a dual observer is used to acquire the state and disturbance values and to provide the sliding mode controller to control the system in real time. Comparative simulations are conducted to verify the impact of the control method on the control accuracy.
Dongping Sheng, Renzhe Ma, and Chun Su
Mech. Sci., 15, 63–76, https://doi.org/10.5194/ms-15-63-2024, https://doi.org/10.5194/ms-15-63-2024, 2024
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This paper designed a kind of satellite deployment mechanism with a boxed structure and passive torsion joints, and dynamic reactions, including modal, impact, and harmonic responses, are researched systematically.
Zhaodong Wang, Lixue Mei, and Xiaoqun Ma
Mech. Sci., 15, 55–62, https://doi.org/10.5194/ms-15-55-2024, https://doi.org/10.5194/ms-15-55-2024, 2024
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To improve the trajectory tracking control performance for robot manipulators subject to uncertainty, a generalized sliding mode controller (SMC) is designed. In the first step, it is assumed that the dynamic model of robot manipulators is precisely known, and an ideal control is designed. In the second step, a smooth-function-based SMC is designed to prevent the chattering phenomenon caused by the discontinuous function and further enhance the robustness performance.
Ameen M. Al Juboori, Mustafa Turki Hussein, and Ali Sadiq Gafer Qanber
Mech. Sci., 15, 47–54, https://doi.org/10.5194/ms-15-47-2024, https://doi.org/10.5194/ms-15-47-2024, 2024
Bin Tang, Zhengyi Yang, Haobin Jiang, and Zitian Hu
Mech. Sci., 15, 17–30, https://doi.org/10.5194/ms-15-17-2024, https://doi.org/10.5194/ms-15-17-2024, 2024
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A pedestrian motion fusion model is constructed to predict pedestrian trajectory by the fusion of a Markov model and an improved social force model with a multiple linear regression algorithm. The parameters in the model are calibrated by the maximum likelihood estimation method. Based on pedestrian trajectory prediction, a longitudinal and lateral collision avoidance control strategy is developed. The results show that the proposed strategy can effectively ensure the safety of pedestrians.
Shenghong Li and Junting Lv
Mech. Sci., 14, 545–555, https://doi.org/10.5194/ms-14-545-2023, https://doi.org/10.5194/ms-14-545-2023, 2023
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Gyro-pendulums are usually used to stabilize the firing of guns on warships or tanks or to navigate cars and aircraft. The stability of the gyro-pendulum is a classical problem in dynamics and control. Moreover, the bounded noise is real in nature, which affects the operation of the dynamical system and even its stability. Our research results on the stochastic stability of gyro-pendulum systems have a good guiding effect for the actual operation of the system and engineering application value.
Zhui Tian and Yongdong Cheng
Mech. Sci., 14, 519–530, https://doi.org/10.5194/ms-14-519-2023, https://doi.org/10.5194/ms-14-519-2023, 2023
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The sensitivity analysis is investigated to solve multi-objective optimization problems with cell mapping in high-dimensional parameter space. A post-processing algorithm is introduced to help choose control parameters from the Pareto set. An optimal-sliding-mode combined-control strategy is proposed to solve global optimal tracking control problems for a MIMO system. The schemes proposed are applied successfully in the control optimization for an antenna servo system on a disturbed carrier.
Gang Chen, Longxin He, Zhihan Zhao, Yuwang Lu, Jiajun Tu, Xiangying Ren, and Hanzhi Lv
Mech. Sci., 14, 493–502, https://doi.org/10.5194/ms-14-493-2023, https://doi.org/10.5194/ms-14-493-2023, 2023
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First, a jumping leg mechanism that imitates a goat's hindlimb is proposed. Second, the kinematics of a goat-inspired jumping leg is analyzed and the jumping trajectory planning is conducted with cubic polynomial curves to guarantee smoothness in the jumping process. Finally, experiments on the goat-inspired jumping leg are conducted to test its jumping performance and to verify the correctness of the kinematic model and the jumping trajectory planning method of the leg.
Zhichao Lyu, Guangqiang Wu, Qiming Wang, and Heqi Yan
Mech. Sci., 14, 479–491, https://doi.org/10.5194/ms-14-479-2023, https://doi.org/10.5194/ms-14-479-2023, 2023
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This paper proposes a gear injury equilibrium oriented self-adjusted shifting strategy (EASS) to equalize injury values across gears to ensure consistency, alongside an adaptive nonsingular global fast-terminal sliding-mode control for synchronizer control. The EASS allowed ongoing injury to gears to be more consistent, avoiding focused injury on a single gear in the transmission while allowing other gears to take relatively small amounts of injury, thus affecting the transmission life.
Xiaoxiao Liu and Mengyuan Chen
Mech. Sci., 14, 293–304, https://doi.org/10.5194/ms-14-293-2023, https://doi.org/10.5194/ms-14-293-2023, 2023
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Considering its practical engineering applications, a proportional-derivative-based robust controller is designed and applied to a nonlinear robotic system with uncertainty. With error- and model-based features, accurate position tracking can be achieved. The control feedback gain is automatically and iteratively adjusted by learning so that the desired performance of the system is optimized.
Baorui Miao and Chao Han
Mech. Sci., 14, 247–258, https://doi.org/10.5194/ms-14-247-2023, https://doi.org/10.5194/ms-14-247-2023, 2023
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Obstacle avoidance and path-tracking control of intelligent vehicles have always been the key issues of intelligent vehicles. This paper improves the traditional model predictive control algorithm. According to the simulation results, compared with the traditional model predictive control, the proposed adaptive model predictive control algorithm can not only avoid obstacles, but also improve the vehicle path-tracking accuracy and driving stability.
Qingxiong Lu, Chao Li, Yangyan Zhang, Hao Fang, and Guangfu Bin
Mech. Sci., 14, 237–246, https://doi.org/10.5194/ms-14-237-2023, https://doi.org/10.5194/ms-14-237-2023, 2023
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Helicopters are easy to hit by hard objects during operation, harming pilots. So, we want to provide some technical references for the safe operation of helicopters. What are the factors that affect the safety? Then we analyze how to control this factor through simulation and specific experiments and observe the vibration of the equipment. Finally, results show that the stability of the equipment can be enhanced by designing a certain device to adjust the influencing factors.
Lei Jia, Jiankang Yang, Xiaojiao Gu, Ziliang Liu, and Xiaoying Ma
Mech. Sci., 14, 143–158, https://doi.org/10.5194/ms-14-143-2023, https://doi.org/10.5194/ms-14-143-2023, 2023
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In this article, the composite synchronization of three inductor motors with a circular distribution by a fuzzy PID (proportional–integral–derivative) method in a vibration system is investigated. A fuzzy PID method is proposed, based on a master–slave strategy. The stability analysis, based on the Lyapunov theorem of the controlling method, is certified. The phase differences of self-synchronization and controlled synchronization are measured and compared from simulation and experiment results.
Haixiao Wu, Yong Zhang, Fengkui Zhao, and Pengchang Jiang
Mech. Sci., 14, 61–76, https://doi.org/10.5194/ms-14-61-2023, https://doi.org/10.5194/ms-14-61-2023, 2023
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Automatic lane-change maneuvers and obstacle-avoidance systems can effectively reduce the incidence of vehicle collision accidents. However, the trajectory-tracking accuracy and response speed will be affected by both external and internal factors. To solve the above problems, a control strategy is proposed. The strategy proposed in this work can not only effectively improve the trajectory tracking performance under road excitation but also significantly improve the ride comfort.
Weigao Ding and Jin Xie
Mech. Sci., 14, 77–86, https://doi.org/10.5194/ms-14-77-2023, https://doi.org/10.5194/ms-14-77-2023, 2023
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In this paper, we propose a piezoelectric energy harvester for human body motion. Based on an analysis of dynamics equations, we find that such a piezoelectric energy harvester performs very well, especially at lower frequencies. We suggest that the piezoelectric beam of an energy harvester subjected to multi-excitation with different modes of motion is quite suitable for harvesting energy from human body motions.
Dharmendra Kumar and Anil C. Mahato
Mech. Sci., 14, 33–45, https://doi.org/10.5194/ms-14-33-2023, https://doi.org/10.5194/ms-14-33-2023, 2023
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A multi-body dynamic model of a wind turbine power generation system (WTPGS), with a turbine blade model and hydro-mechanical hybrid power transmission (HMHPT), is developed and simulated. In HMHPT, the hydrostatic power transmission (HPT) improves the system controllability and the gear train obtains higher speeds in the electric generator. The HMHPT's benefits are improved system controllability and higher generator speed. Pump and motor leakages are analyzed based on system performance.
Xuanen Kan and Tuo Xing
Mech. Sci., 13, 1031–1037, https://doi.org/10.5194/ms-13-1031-2022, https://doi.org/10.5194/ms-13-1031-2022, 2022
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Bladed disk systems with advanced functions are widely used in turbo-machineries. In this paper, a novel mathematical model of the resonance of an intentional mistuning bladed disk system is established. Mistuning of blades and energy resonance are included in this theoretical model. This paper will provide guidance for the design of dynamic characteristics of the intentional mistuning bladed disk.
Guosheng Geng, Feng Jiang, Chao Chai, Jianming Wu, Yejun Zhu, Guiguan Zhou, and Maohua Xiao
Mech. Sci., 13, 921–931, https://doi.org/10.5194/ms-13-921-2022, https://doi.org/10.5194/ms-13-921-2022, 2022
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First, we compare the advantages and disadvantages of existing navigation devices in agriculture and select the magnetic navigation with low cost and high reliability. We then establish the motion model of the table. The fuzzy proportion integration differentiation (PID) control strategy is determined through the model's analysis, and the fuzzy PID controller is designed and simulated in MATLAB. Finally, the test is verified under two different conditions of straight road and curved road.
Khaled Zizouni, Abdelkrim Saidi, Leyla Fali, Ismail Khalil Bousserhane, and Mohamed Djermane
Mech. Sci., 13, 899–908, https://doi.org/10.5194/ms-13-899-2022, https://doi.org/10.5194/ms-13-899-2022, 2022
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The paper provides a numerical study of a semi-active control strategy for structural vibrations caused by earthquake or wind excitations. A sliding-mode non-linear controller was designed and reinforced by an adaptive switching gain to overcome the chattering problem and perform the stability proven by the Lyapunov stability criterion. The compared and discussed numerical simulation results have shown the performance of the proposed semi-active control.
Caofeng Yu, Yu Wang, Zhihao Xiao, Gan Wu, Yongyong Duan, and Kun Yang
Mech. Sci., 13, 843–853, https://doi.org/10.5194/ms-13-843-2022, https://doi.org/10.5194/ms-13-843-2022, 2022
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In this paper, the nonlinear characteristics of the kinematics model of the macro–micro composite actuator are analyzed, the driving force model and kinematics model of the macro-motion part is established, and the model parameters are identified by using the data measured on the experimental platform. The research results lay a theoretical and technical foundation for the development of a high-speed and large-stroke positioning controller of the macro–micro composite actuator.
Miao Xie, Xinli Yu, Ze Ren, and Yuqi Li
Mech. Sci., 13, 803–815, https://doi.org/10.5194/ms-13-803-2022, https://doi.org/10.5194/ms-13-803-2022, 2022
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In this paper, chatter recognition is carried out for milling based on dynamic characteristics and wavelet packets. The relationship between the dynamic characteristics of the machine tool spindle system and chatter recognition is established by constructing a recombined signal containing chatter signal information.
Zheng Li, Zihao Zhang, Shengdi Feng, Jinsong Wang, Xiaoqiang Guo, and Hexu Sun
Mech. Sci., 13, 761–770, https://doi.org/10.5194/ms-13-761-2022, https://doi.org/10.5194/ms-13-761-2022, 2022
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Aiming at the problems of speed ripple, slow response, sensor dependence, and mechanical chattering in the motion of the permanent magnet linear synchronous motor (PMSLM), a model-free speed control system based on the model reference adaptive system (MRAS) is proposed in this paper. The control system designed in this paper has reference value for the system control structure of the PMSLM.
Chao Tang, Zhuoran Huang, Cheng Wei, and Yang Zhao
Mech. Sci., 13, 751–760, https://doi.org/10.5194/ms-13-751-2022, https://doi.org/10.5194/ms-13-751-2022, 2022
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Similar to a space flying net, the capture field of the space netted pocket system is large and it can be applied to capture space non-cooperative targets flexibly. In this paper, a space netted pocket system is designed and modeled. The dynamic model and control method is verified through the simulation of the virtual prototype. Results show that the service spacecraft can maintain the attitude stability during the target capture process and can track the desired angle during attitude maneuver.
Gengxin Qi, Xiaobin Fan, and Hao Li
Mech. Sci., 13, 735–749, https://doi.org/10.5194/ms-13-735-2022, https://doi.org/10.5194/ms-13-735-2022, 2022
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The road adhesion coefficient is of profound significance for the vehicle active safety control system and is one of the core technologies of future autonomous driving. Based on the unscented Kalman filter (UKF) and particle filter (PF) algorithms, a road adhesion coefficient estimator is designed and simulations are carried out. To verify the feasibility and robustness of the algorithms on a real road, a hub-based motor vehicle test platform is built to complete real vehicle experiments.
Binyu Wang, Yulong Lei, Yao Fu, and Xiaohu Geng
Mech. Sci., 13, 713–724, https://doi.org/10.5194/ms-13-713-2022, https://doi.org/10.5194/ms-13-713-2022, 2022
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A terminal sliding mode controller is used to design the controller, and a radial basis function neural network method is used for adaptive approximation of system parameters. In order to eliminate chattering, a fuzzy algorithm is designed for fuzzy control of control gain. The simulation verified that the controller designed in this paper can effectively carry out trajectory tracking and the lateral control of electric vehicles and eliminate chattering to a certain extent.
Long Wang, Zhiyong Yang, Xiangdong Chen, Ruixiang Zhang, and Yu Zhou
Mech. Sci., 13, 647–657, https://doi.org/10.5194/ms-13-647-2022, https://doi.org/10.5194/ms-13-647-2022, 2022
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The speed of autonomous vehicles will have a significant influence on the safety and comfort of driving. When the autonomous vehicle passes through the consecutive speed control humps, how to automatically select the most appropriate speed has become a practical research subject. The paper chooses the genetic algorithm to build a multi-objective optimization model and then designs and carries out the solution process of the multi-objective optimization problem for the vehicle.
Tao Zhang, Taimu Jin, Ziwei Zhou, Zaigang Chen, and Kaiyun Wang
Mech. Sci., 13, 603–617, https://doi.org/10.5194/ms-13-603-2022, https://doi.org/10.5194/ms-13-603-2022, 2022
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To investigate the effect of the gear transmission system on the dynamic responses of the metro vehicle driving system, a vertical–longitudinal dynamics, model which considers the frame-hung traction motor and gearbox, is established and is validated to be reliable by comparing the simulation results and field test results in both time domain and time–frequency domain in this paper. Compared to wheelset, the gear mesh force has a greater effect on the force state of traction motor and gearbox.
Qing Hui Song, Lin Jing Xiao, Qing Jun Song, Hai Yan Jiang, and Xiu Jie Liu
Mech. Sci., 13, 505–517, https://doi.org/10.5194/ms-13-505-2022, https://doi.org/10.5194/ms-13-505-2022, 2022
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An analytical solution for designing the optimal parameters of dynamic vibration absorbers attached to the damped main system is found to be difficult and complicated. In this paper, the adaptive multiswarm particle swarm optimization is applied to parameter optimization, and the numerical solutions of the system are given for the damped main system under sinusoidal force excitation.
Xin Shen, Qianwen Huang, and Ge Xiong
Mech. Sci., 13, 485–494, https://doi.org/10.5194/ms-13-485-2022, https://doi.org/10.5194/ms-13-485-2022, 2022
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A new measurement method for the dynamical response of a marine propeller shaft with lower cost, simple maintenance and high accuracy is proposed. The shaft vibration predicted from the vibration signals of the bearings is easy to measure. The convolutional neural network can fit the nonlinear relationship between the vibration signals of the bearing and propeller shaft.
Dharmendra Kumar, Anil C. Mahato, Om Prakash, and Kaushik Kumar
Mech. Sci., 13, 459–472, https://doi.org/10.5194/ms-13-459-2022, https://doi.org/10.5194/ms-13-459-2022, 2022
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A performance analysis of the PFDV using a steering mechanism (SMHPTSPFDV) and wind turbine power development system using a hydraulic system with PFDV (WTHPTSPFDV) is conducted. Dynamic modeling and analysis of the SMHPTSPFDV and WTHPTSPFDV systems is presented. We find that the power and energy loss through the PFDV is higher when it is connected with the dual loads for performing dual functions compared to the other hydraulic drive system used in wind turbines to obtain stable output.
Kaloyan Yovchev and Lyubomira Miteva
Mech. Sci., 13, 427–436, https://doi.org/10.5194/ms-13-427-2022, https://doi.org/10.5194/ms-13-427-2022, 2022
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Industrial robots are required to perform a given task repetitively with high tracking precision. Iterative learning control (ILC) calculates the tracking error of each iteration and corrects the output control signals in accordance with a predefined learning operator. This research considers the changes of the dynamics characteristics when the robot has different types of payload. It provides an approach for adaptation of the ILC to the specific payload to achieve faster convergence.
Mohammad Tamizifar, Masoud Mosayebi, and Saeid Ziaei-Rad
Mech. Sci., 13, 331–340, https://doi.org/10.5194/ms-13-331-2022, https://doi.org/10.5194/ms-13-331-2022, 2022
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We show how the operational modal analysis of a nonuniform wind turbine tower can be performed and used to acquire effective and reliable test results and dynamic behavior. Results show that a tailor-made genetic algorithm (using auto-MAC as the fitness function) is a practical approach to finding the optimal position of the sensors to obtain the best results for objective modes. We also accessed the updated finite element model with less than 1 % error compared to the frequencies from the test.
Vladimir Verbitskii, Vlad Lobas, Yevgen Misko, and Andrey Bondarenko
Mech. Sci., 13, 321–329, https://doi.org/10.5194/ms-13-321-2022, https://doi.org/10.5194/ms-13-321-2022, 2022
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The article presents an approach to constructing the stability boundary in the parameter space of a nonlinear model of a wheeled vehicle – a bifurcation set, which extends the well-known concept of the critical speed of rectilinear motion to the case of circular modes. The approaches considered in the work are important for understanding the regularities of the change in the stability properties of the movement of wheeled transport systems.
Xiaofei Chen, Han Zhao, and Shengchao Zhen
Mech. Sci., 13, 297–310, https://doi.org/10.5194/ms-13-297-2022, https://doi.org/10.5194/ms-13-297-2022, 2022
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We propose a kind of permanent magnet linear motor (PMLM) with inequality constraints to transform the constraint tracking control method based on the equality constraint and U–K inequality status transformation. This method solves the problem of the control system of equality constraints and inequality constraints without the need for the localization of a nonlinear system, proving that the method has certain advantages and can be extended to the safety constraint control of other products.
Yu Sun, Jinsong Zhou, Dao Gong, and Yuanjin Ji
Mech. Sci., 13, 239–256, https://doi.org/10.5194/ms-13-239-2022, https://doi.org/10.5194/ms-13-239-2022, 2022
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A multi-degree-of-freedom dynamic vibration absorber (MDOF DVA) to suppress the vibration of the car body of high-speed trains is proposed. The MDOF DVA is installed under the car body, the main vibration frequency in each DOF of which is designed as a dynamic vibration absorber for lateral motion, bouncing, rolling, pitching, and yawing of the car body. The design principle of multi-DOF dynamic vibration absorption is analyzed by combining the design method of single DVA and genetic algorithm.
Ming-Yen Chang, Hsing-Hui Huang, and Zhao-Long Chen
Mech. Sci., 13, 189–206, https://doi.org/10.5194/ms-13-189-2022, https://doi.org/10.5194/ms-13-189-2022, 2022
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The main purpose of this study was to establish a design process for the 2F1R thee-wheel tilting mechanism and to reduce the turning radius to fulfill steering geometry in order to reduce the steering torque for a better handling feel. The results were compared with road tests of real vehicles to verify the model.
Yuzheng Zhu, Xueyuan Li, Qi Liu, Songhao Li, and Yao Xu
Mech. Sci., 13, 147–188, https://doi.org/10.5194/ms-13-147-2022, https://doi.org/10.5194/ms-13-147-2022, 2022
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Energy management strategies (EMSs) play an important role in hybrid electric vehicles. In this review, EMSs based on the intelligent transportation system are considered in parallel to rule-based and optimization-based EMSs. For each EMS, a comprehensive and detailed review, based on energy management methods or algorithms, summarizes the advanced research results of scholars. The principles and the advantages and disadvantages of different EMSs are expressed using figures and tables.
Jun Qu, Qilong Xue, Shixin Bai, and Yazhe Li
Mech. Sci., 13, 89–99, https://doi.org/10.5194/ms-13-89-2022, https://doi.org/10.5194/ms-13-89-2022, 2022
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Based on solving the problem of surrounding rock deformation of an engineering geological tunnel, a new support structure composite cantilever support structure is proposed. The numerical calculation and application of the structure are carried out, and it is verified that the composite cantilever support structure can effectively restrain the deformation of surrounding rock, and the appropriate design parameters of the support structure are obtained. It has a certain engineering value.
Hao Dong, Yue Bi, Zhen-Bin Liu, and Xiao-Long Zhao
Mech. Sci., 12, 1093–1104, https://doi.org/10.5194/ms-12-1093-2021, https://doi.org/10.5194/ms-12-1093-2021, 2021
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In order to solve the problem of the nonlinear frequency response of a planetary gear transmission system, based on the lumped parameter theory, a nonlinear frequency response model with a bending torsion coupling of a planetary gear system is established by comprehensively considering the backlash, support clearance, time-varying meshing stiffness, static transmission error, external periodic excitation and other factors.
Guangjiu Qin, Shuohua Zhang, and Hao Jing
Mech. Sci., 12, 1083–1092, https://doi.org/10.5194/ms-12-1083-2021, https://doi.org/10.5194/ms-12-1083-2021, 2021
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The influence of wind load on the vibration of ultra-high-speed elevator can no longer be disregarded, and the maximum horizontal vibration acceleration of the guide rail is positively correlated with the height of the building. In addition, the vibration acceleration of the same height rail increases with the increase in wind pressure. This study provides important guidance for researchers studying the horizontal vibration response of ultra-high-speed elevators.
Milos S. Matejic, Mirko Z. Blagojevic, and Marija M. Matejic
Mech. Sci., 12, 997–1003, https://doi.org/10.5194/ms-12-997-2021, https://doi.org/10.5194/ms-12-997-2021, 2021
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This paper investigates planetary gear reducers with double satellite gears. These reducers are present in present-day industrial robots, electric vehicles, etc. The paper deals with the dynamic behavior of the reducer as a whole system. The acceleration, velocities, and movements are solved for all elements based on the defined dynamic model. For a dynamic model definition, we used Lagrangian equations of the second kind. The results can be used in design, investigation, etc.
Hao Li, Jahangir Rastegar, and Baosheng Wang
Mech. Sci., 12, 913–922, https://doi.org/10.5194/ms-12-913-2021, https://doi.org/10.5194/ms-12-913-2021, 2021
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This paper proposes a global interpolation algorithm that uses the trajectory pattern method for synthesizing low-harmonic trajectories. The synthesized trajectories and axis kinematic profiles are all smooth and only contain the fundamental frequency and its first three harmonics, which could avoid excitation of the system modes of vibration and reduce demand on the actuator dynamic response, thereby allowing the system to operate at higher speed and precision.
Lan Liu, Qiangyi Ma, Jingyi Gong, Geng Liu, and Xiaomei Cao
Mech. Sci., 12, 819–835, https://doi.org/10.5194/ms-12-819-2021, https://doi.org/10.5194/ms-12-819-2021, 2021
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The paper studies the three-dimensional contact finite element model of a double helical gear-shaft-bearing system based on the load-bearing contact analysis of the tooth surface. The results show that the tooth surface bearing contact of the system has the phenomenon of partial load due to the supporting deformation, and the unmodified herringbone gear has obvious contact stress concentration, which can be effectively improved by gear tooth modification.
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