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本文在建立阻力调节液压悬挂系统数学模型的基础上,刊出系统传递函数的各种表达式,对影响油缸活塞杆输出速度v(t)和位移y(t)的诸因素进行理论分析,阐明在不同机型和工况条件下,影响v(t)和y(t)的扰动作用各不相同。文中采用时域法研究系统的动态特性,指出阻尼系数ζ和固有频率ω_n对系统动态过渡过程的影响。合理选择ζ的数值和控制影响ω_n的各项参数,改善系统的动态品质和提高机组的工作稳定性。
Based on the establishment of the mathematical model of the hydraulic suspension system for resistance adjustment, various expressions of the system transfer function are put forward to theoretically analyze the factors influencing the output velocity v (t) and the displacement y (t) Under different models and working conditions, the perturbations that affect v (t) and y (t) are different. The time domain method is used to study the dynamic characteristics of the system, and the influence of the damping coefficient ζ and the natural frequency ω_n on the dynamic transition of the system is pointed out. Reasonable choice of the value of ζ and control the parameters of ω_n affect the dynamic quality of the system and improve the stability of the unit.