Study on the Optimal Design of a Single Chamber Hydro-pneumatic Spring
Li Zhanfang1;Tong Junling2,3;Li Wei3
1. College of Applied Science and Technology, China University of Mining and Technology, Xuzhou, 221008, China ;2. State Key Laboratory of Automobile Dynamics Simulation, Jilin University, Changchun 130025, China;3. College of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China
Abstract：Abstract: The optimal design of a single chamber hydro-pneumatic spring used in a certain military off-road vehicle was studied. First, the mathematic model of the hydro-pneumatic spring was established, then, a half-car model of the hydro-pneumatic suspension system was obtained. Based on the model, considering the characteristics of the off-road vehicle, the suspension system performances of ride quality and road adhesion were chosen as the objective functions, the main parameters of the fore and rear hydro-pneumatic springs such as volume and pressure of the auxiliary gas room and the accumulator at equilibrium position, diameter of the main piston, hydraulic diameter of the damping hole and check valve were chosen as design variables, and with the constraint conditions the mathematic model of the optimal design was achieved. Then the Particle Swarm Optimization(PSO) algorithm was employed to solve this optimal design problem. The result shows that the combination property of the hydro-pneumatic suspension system has increased by 37.33% after the optimization.
李占芳;仝军令;李威. 单气室油气弹簧的优化设计研究[J]. , 2011, 30(4): 166-172.
Li Zhanfang;Tong Junling;Li Wei. Study on the Optimal Design of a Single Chamber Hydro-pneumatic Spring. , 2011, 30(4): 166-172.
2011, Vol. 30 
