非对称缸, 液压弹簧刚度, 建模, 仿真

Focusing on load pressure defined by asymmetrical struction of cylinder,which was sufficiently considered, and hydraulic spring stiffness was not minimal on the initial position in general modeling method, a method was proposed,that effective supporting area was weighted and meaned, and the load pressure was redefined, so flow equation for slide valve was of linearization. The initial position and total volume of asymmetrical cylinder were analyzed by applying the theory of hydraulic spring stiffness when its natural frequency was minimum, a mathematical model for asymmetrical cylinder was established, and relevant design rules were developed, dynamic characteristics of the model were analyzed by simulation and experiments, and compared with general model. The results show, this model is more accurate than general model, and more near to real system. 

asymmetrical cylinder, hydraulic spring stiffness, modeling, simulation