振动压路机二级减振系统的减振性能仿真  

Simulation of two-stage vibration isolation system for vibratory roller

作　　者：王营 张志峰[1,2] 宋楠 任培丹 刘天宇 吴洁 WANG Ying;ZHANG Zhifeng;SONG Nan;REN Peidan;LIU Tianyu;WU Jie

机构地区：[1]长安大学工程机械学院,陕西西安710064 [2]长安大学道路施工与装备教育部重点实验室,陕西西安710064

出　　处：《现代机械》2023年第1期65-69,共5页Modern Machinery

基　　金：国家自然科学基金项目51208044。

摘　　要：振动压路机橡胶减振系统的性能直接影响振动压实质量和驾驶舒适性。为了降低重型振动钢轮对机架的振动影响,建立了二级橡胶减振系统数学模型,给出了数值解,并对比分析了高幅、低幅两种工况下一级减振、二级减振的减振效果。结果表明,二级减振系统具有更好的减振性能,振动钢轮能够快速达到稳定振动状态,二级减振系统中间支撑板质量应大于振动轮质量的15%,一级减振系统的弹簧刚度应大于二级减振系统弹簧刚度的60%,研究结论对重型振动压路机的减振系统设计具有一定的理论借鉴意义。The performance of the vibration isolation system of the vibratory roller directly affects the quality of vibratory compaction and the driving comfort.In order to reduce the vibration impact of the heavy vibrating steel wheel on the frame,a mathematical model of the two-stage rubber isolation system is established,the numerical solutions are given,and the vibration isolation effect of the one-stage isolation and the two-stage isolation are compared under high-amplitude/low-amplitudeworking conditions.The results show that the two-stage isolation system has better vibration isolation performance,and the vibrating steel wheel can quickly reach a stable vibration state.The mass of the middle support plate of the two-stage isolation system should be more than 15%of the mass of the vibrating wheel,and the spring stiffness of the one-stage isolation system should be more than 60%of that of the two-stage isolation system.The research conclusions are useful for the design of the vibration isolation system for heavy vibratory rollers.

关 键 词：振动压路机 动力学模型 减振系统 橡胶减振器 减振性能 

分 类 号：U461.4[机械工程—车辆工程]