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本文探讨工程车辆减振系统的动态参数选择问题。工程车辆减振系统可简化为四自由度的平面振动系统,受到地面不平的激励。当地面激励谱已知的情况下,该系统的动态系数选择可作为多输入单输出系统的非线性规划问题来处理,优化的目标函数是司机所受垂直振动加速度加权均方根值最小,设计变量是各级减振弹簧的刚度和阻尼系数。本文以ZL50装载机为例在微机上进行优化计算,所得结果甚为满意。
This paper discusses the dynamic parameters of vibration isolation system for construction vehicles. The vibration damping system for construction vehicles can be simplified into a four-degree-of-freedom plane vibration system, which is unevenly excited on the ground. When the excitation spectrum of the ground is known, the dynamic coefficient selection of the system can be treated as a nonlinear programming problem of multiple input and single output system. The objective function of optimization is that the driver has the smallest weighted average of the vertical vibration acceleration, and the designed The variable is the stiffness and damping coefficient of the damping spring at all levels. In this paper, ZL50 loader as an example in the computer to optimize the calculation, the results are very satisfied.