Landing gear is a structure that is mounted under the fuselage and helps the aircraft in takeoffs and landings. The most important duty of landing gear is the control of vibration exerted on the system through the shock absorber which is a common component to all the landing gear. Considering the importance of this issue, the necessity of investigating shock absorber with features such as high ...

This review article deals with hydro-pneumatic accumulators (HPAs) charged nitrogen. The focus is on HPA models used in the study of energy efficiency hydraulic systems. Hydraulic circuits are presented along their various applications for delivering required volume fluid, maintaining pressure, ensuring safe operation, safety stop, leak compensation, fluid change pulsation damping, and pressure...

Introduction: Many vibration transport and technological machines (VTTM) such as conveyors, screens, crushers, etc. operate in a high-frequency mode, or above resonance. Resonance occurs during machine start slowdown, resulting sharply rising values of the amplitude velocity oscillations. affects VTTMs adversely due to increased dynamic loads reducing machinery operating life reliability causin...

This paper analyzed the structure and principle of a regenerative electromagnetic shock absorber in detail. The innovative shock absorber resembles linear generator in principle and can generate electric power through the relative reciprocating motion between coil assembly and permanent magnet assembly. At the same time, the damping can remove discomfort caused by road roughness. The regenerate...

This paper dis cusses the development of a nonlinear shock absorber model for low-frequency CAE-NVH applications of body-on-frame vehicles. In CAE simulations, the shock absorber is represented by a linear damper model and is found to be inadequate in capturing the dynamics of shock absorbers. In particular, this model neither captures nonlinear behavior of shock absorbers nor distinguishes bet...