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针对传统刚性支重轮减振效果较差的现状,将减振性能良好的间隔阻尼层结构(管状)引入支重轮,以提高支重轮结构的损耗因子,改良其减振性能。通过建立支重轮减振模型,推导出其幅频特性函数,结合实际工作状况和支重轮的结构设计出实体模型。以某型号推土机为研究对象,利用Matlab软件编写仿真程序,并将推土机的各项参数带入,仿真结果表明,经过改良的支重轮可对履带式工程车辆的振动进行有效的缓冲,并能避免整机在低频工作状态下发生共振。
Aiming at the current situation that the traditional rigid roller wheel has a poor damping effect, the damping layer with good damping performance is introduced into the roller wheel to enhance the loss factor of the roller wheel structure and improve its vibration damping performance. By setting up the support roller vibration model, the amplitude-frequency characteristic function is derived, and the solid model is designed based on the actual working conditions and the structure of the roller. Taking a bulldozer of a certain type as the research object, the simulation program was programmed by using Matlab software, and the parameters of the bulldozer were brought in. The simulation results show that the improved roller can effectively buffer the vibration of the tracked engineering vehicle and can Avoid resonance in low frequency working condition.