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This paper proposes a path-planning method for 3D information collection on the space station surface via a hyper-redundant space robot (HSR). Based on the active information collection method, the collision-free viewpoint trajectory of the space station surface can be planned. The path planning of the space station surface information collection can then be realized by importing the space station model data and performing weight initialization, stochastic search, and continuous optimization. 

This paper proposes a synthesis method for compliant bistable mechanism based on pole similarity transformation. The rigid components in the synthesis results can self-maintain at two specified positions assigned by the motion task, which are the two stable states of the mechanism. Even if the mechanism deviates from these positions under external forces, it can rely on its own internal forces to return to the stable-state positions.

In order to effectively improve the running stability of the three-axis emergency aid vehicle and reduce the risk of rollover, a rollover dynamic model with 11 degrees of freedom is established in this paper. A three-axle anti-rollover control strategy based on the cooperation of differential braking and active suspension is proposed. The anti-rollover capability of the vehicle is verified by a mathematical simulation.

In this paper, a variable structure detection robot for underground rescue is designed for the rescue environment of a 225 mm diameter borehole, combined with the leading arm and the deformable tracks.  A stability criterion based on the contact force between the robot and the road surface (contact force stability criterion, CFSC) is proposed, and an adaptive stability control system of the robot is established in combination with a neural network.

In this paper, the design principle of the symmetrical spherical parallel mechanism (SPM) is obtained by analyzing the conditions for symmetrical motion of the mechanism. A series of symmetrical SPMs is designed based on the constraint force provided by the branches. The SPM can realize continuous rotation around any line on the mid-plane that passes through the rotation center of the spherical mechanism. This feature has great potential for application in fields such as rehabilitation robotics.

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.

Vibration measurement technology based on binocular vision and kinematic decoupling is a new method which can effectively extract vertical vibration signal. The proposed method has the advantages of real-time measurement and low cost and overcomes the limitations of traditional measurement methods in error accumulation.

Because the wheeled rolling robot has the characteristics of fast movement, high work efficiency and strong bearing capacity, it can be applied to industrial production and detection. Aiming at the problems of low motion efficiency and a large number of drives of the rolling robot based on a parallel mechanism, a new type of wheeled rolling robot composed of a planar 3-RRR parallel mechanism and a spoke-type variable diameter wheel is proposed in this paper.

In order to lessen the impact on the team of rehabilitation practitioners and provide patients with a higher-quality rehabilitation process, an ankle rehabilitation robot based on a parallel mechanism is proposed. The feasibility of the ankle rehabilitation robot proposed in this paper is proven by analysis, which lays a foundation for future human–machine experiments. It can act as a reference for future research of the ankle rehabilitation mechanism.

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.

In the present paper, study on meshing stiffness characteristics of the modified variable hyperbolic circular-arc-tooth-trace cylindrical gears was proposed. The modified tooth surface equation was deduced, and a 3D model was developed. The load tooth contact analysis (LTCA) model was developed. The meshing stiffness calculation method  was proposed and verified by the finite-element calculation. The influence of the load and modification parameters on the stiffness was investigated.

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.