A Composite material (Carbon fiber reinforce polymer) leaf spring has been used to efficiently integrate the functions of suspension control arm and anti-roll bar in a compact passenger suspension. Composites materials were chosen to tailor the required behavior of the leaf spring and to reduce the weight. The research is done with multiple simulation methods, such as MBD and FEM. DoE is also performed to find the best combination of variables in the model.

Mitochondria are small organelles with key functions inside our cells. Unfortunately, there are a number of diseases that arise from their malfunction. To test whether they are healthy or not, complicated procedures are often required. In the paper, we applied our sensor that detects motion of living microorganisms. We saw that a sensor detecting tiny vibrations is powerful enough to sense the difference between normal and inhibited mitochondria.

Notch flexure hinges are often used as revolute joints in high-precise compliant mechanisms. Therefore, this paper presents design equations for the calculation of the rotational stiffness, maximal angular elastic deflection and rotational precision of various notch flexure hinges in dependence of the hinge parameters and the load. Four flexure hinge contours are investigated, the semi-circular, the corner-filleted, the elliptical, and the recently introduced bi-quadratic polynomial contour.

This paper presents a gravity unloading facility to simulate micro-gravity environment of space. The facility unloads the gravity of artificial antenna of satellite and its pointing mechanism to test the performance of the pointing mechanism on the ground. The facility consists of two layers to unload gravity hierarchically and simultaneously while the antenna pointing mechanism consists of two joints. The calculation, simulation and experiments all show the effectiveness of the method applied.

A new joint mechanism design is presented in this study which has a potential use in robotics, particularly in humanoid robot designs, because of its variable stiffness characteristics, lightweight and remotely-actuated structure. A helical spring inside the mechanism brings compliance which increases the safety. The spring is analyzed with a method proposed in the paper and verified by FEM. The kinematic and the dynamic models are obtained and experimentally validated.

This paper presents results of an experimental investigation on the falling down of human body in order to identify significant characteristics and parameters. Vision tracking system and suitable sensors to monitor the falling motion. Tests are discussed with results from lab tests that give both behavior and values of the biomechanics of falling down of human body.

The mechanisms of one degree of freedom can be dynamically analysed by setting out a single differential equation of motion which variable is the generalized coordinate selected as independent. In front of the use of a set of generalized dependent coordinates to describe the system, the method exposed in this work has the advantage of working with a single variable but leads to complex analytical expressions for the coefficients of the differential equation, even in simple mechanisms.

This paper investigates a special cube-connected toy that can be reconfigured into several different structures by hand operation. The reconfiguration of the toy is formulated by using an exclusive mathematic modeling through which the physical reconfiguration of the toy can be expressed and manipulated in an algebraic consideration. This research is an example of how mathematics can be applied to study the reconfiguration of mechanisms and mechanical structures.

The low-dimensional electron systems made from semiconductor heterostructures are known mostly as a base for studying the mesoscopic electron-transport phenomena. However, they can also be used for creation of nanoelectromechanical systems combining non-trivial electron transport and mechanical degrees of freedom. In the present paper, we propose a quantitative physical model describing the piezoelectric electromechanical coupling in nanomechanical resonators with a two-dimensional electron gas.

A flexure-based monolithic micro manipulation stage with large workspace is designed and analyzed. The piezoelectric actuators are adopted to drive the manipulation stage. The optimized lever amplifier is integrated into the mechanism in order to compensate the stroke of the piezoelectric actuators. The working range of the manipulation stage along each axis is ± 42.31 μm, ± 48.56 μm, 0–10.28 m rad, respectively.

Performance of gas turbine engines are strongly dependent on entrance air flow conditions. In the current work, responses of an axial compressor isolated rotor blade row to various inlet distortions are investigated utilizing computational fluid dynamic technique. Distortions are imposed by five screens of different geometries but with the same blockage ratio. Results showed that the worst cases belong to non-symmetric blockages, i.e., those of partial circumferential configurations.

A three-dimensional elastoplastic finite element method was first employed to perform numerical computations for local line rolling forming, according to the characteristics of strain distributions, a simplified deformation simulation method, based on the deformation obtained by applying strain was presented. This simplified deformation simulation method was verified to provide high computational accuracy, and this could result in a substantial reduction in calculation time.

This investigation presents a good application of wave propagation approach in the arena of CNTs vibrations. Finally, it is concluded that the presented CSM method is an alternative best choice to examine the overall vibration behavior of SWCNTs. The present investigation may be helpful in study of MWCNTs vibrations like considering aspects of high frequency oscillators and mechanical sensors.

The mixing system of a certain type of concrete mixing truck is studied.A mathematical method for calculating the dynamic performance of the mixing drum is established.Results show that with the increase of rotating speed, the vibration amplitude of the mixing drum decreases.The peak amplitude moves to the right with the inclination angle increasing.The maximum unbalanced response amplitude increases with the decrease of concrete liquid level height,and the vibration peak moves to the left.

The kinematic chain comprised of SLEs (scissor-like elements) has a wide range of motion, which is of benefit for the mechanism design. In this paper, we create a 2-DOF translational parallel mechanism with SLEs. The translational parallel mechanism is composed by several SLE-Pa (SLE-parallel) legs, which consist of two identical SLE limbs. This kind of mechanism is applied to the design of a passive docking device, and the prototype of one SLE-Pa leg is presented.

The paper presents a parallel robot designed to manipulate the equipment of a prostate biopsy procedure (an ultrasound probe and biopsy needle). Inverse and forward kinematic models are presented along with the workspace and singularities of the robot. Using the experimental model, tests were performed and an accuracy of 1–2 mm was achieved. A fusion system between an MRI and an ultrasound image (from an endorectal probe) was developed to reduce the number of sampling points to a minimum.