强夯机多体系统刚柔耦合动力学仿真与结构优化  

Dynamical Simulation and Structural Optimization of Compactor Based on Flexible Multi-body Rigid-flexible Coupling

作　　者：袁铭鸿[1] 万安平 童水光[1] YUAN Ming-hong;Wan Anping;TONG Shui-guang(Institute of Thermal Science and Power System, Zhejiang University, Hangzhou 310027, China;Department of Mechanical Engineering, Zhejiang University City College, Hangzhou 310015, China)

机构地区：[1]浙江大学热工与动力系统研究所,杭州310027 [2]浙江大学城市学院机电系,杭州310015

出　　处：《科学技术与工程》2020年第22期9176-9182,共7页Science Technology and Engineering

基　　金：国家自然科学基金(51705455);浙江省城市轨道交通智能运维技术与装备重点实验室开放课题基金。

摘　　要：针对强夯机满载率高,起重卸载频繁,工作环境恶劣等特点,以某新型强夯机为研究对象,基于多体系统动力学理论,考虑臂架各部件的柔性,建立了强夯机多体系统刚柔耦合动力学模型,通过动态响应仿真与试验对比,研究了整机在典型工况下的动力学特性,得出了臂架关键部件的运动规律及应力结果。借助于刚柔耦合动力学计算结果,根据优化设计理论和方法建立臂架结构优化的数学模型,通过优化计算后的臂架结构应力减少12.48%,最大位移减少15.47%,臂架总质量减少6.52%,强度得以充分发挥,整机各项性能得以改善。According to the characteristics of compactor of highly load,frequent lifting and poor working conditions,a certain type of compactor was taken as research object,and a multi-body rigid-flexible coupling model was established considering the flexible of compactor's mechanical arm.By comparing dynamic simulation and test results in a typical operating condition,the kinetic characteristics of machine were studied,the law of compactor's mechanical arm's motion was observed,and the stress results were obtained.Based on the results of rigid-flexible coupling dynamic simulation and the structural optimization of the boom's mathematical model,the optimal boom structure stress was reduced by 12.48%,the max-displacement decreased by 15.47%,total weight decreased by 6.52%,while the compactor's performances were greatly improved.

关 键 词：柔性多体力学 刚柔耦合模型 动力学仿真 结构优化 强夯机 

分 类 号：TU662[建筑科学—建筑技术科学] TH113[机械工程—机械设计及理论]