The influence of the temperature of hydro-pneumatic spring into the state of tracked vehicle

2019 International Conference on Advances in Materials, Mechanical and Manufacturing

材料科学;机械制造

Jiang, Mang^1

Department of Automotive Engineering, Tsinghua University, Beijing

100084, China^1

关键词: Constant velocities;    Driving conditions;    Gas pressures;    Hydro-pneumatic spring;    Multibody dynamics model;    Sinusoidal surfaces;    Track tension;    Vertical accelerations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/576/1/012018/pdf
DOI  :  10.1088/1757-899X/576/1/012018

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Based on the multi-body dynamics model, the influence of the temperature of the hydro-pneumatic spring on the state of a lighted tracked vehicle under several driving conditions is studied. A multi-body dynamics model of chassis and body of a tracked vehicle is established, and verified with simulation and experimental results in the relevant literatures. Typical driving conditions are studied including running on a flat road with constant velocity, passing a semi-round obstacle with the radius of 200 mm, and running on a sinusoidal surface with wavelength of 2 m and amplitude of 100 mm. Some responses of the vehicle are compared and analyzed, so as to obtain the influence of the temperature of hydro-pneumatic spring. The numerical analysis results show that the temperature of hydro-pneumatic spring has a significant effect on the vehicle's responses including height of centroid, vertical acceleration of centroid, pitch angle, track tension and gas pressure of the springs.