基于ADAMS的25t汽车起重机稳定性分析  

Stability Analysis of 25t Truck Crane Based on ADAMS

作　　者：高航 薛齐文 黄丛 GAO Hang;XUE Qiwen;HUANG Cong(School of Civil Engineering,Dalian Jiaotong University,Dalian Liaoning 116028,China;Aerospace Science,Industry and Space Engineering Development Co.,Ltd.Wuhan 430000,China)

机构地区：[1]大连交通大学土木工程学院,辽宁大连116028 [2]航天科工空间工程发展有限公司,湖北武汉430000

出　　处：《装备制造技术》2021年第10期100-103,共4页Equipment Manufacturing Technology

摘　　要：建立复杂的多刚体系统动力学模型,仿真探讨25 t汽车起重机的稳定性。选取3种典型臂长工况,对起重机作业过程中吊臂位于最危险位置突然卸载的情况进行动力学仿真,采用冲击函数法计算支腿与地面的接触力,得到支腿竖向位移随时间变化曲线。结果表明:三种最危险工况下,起重机支腿离地最大位移5mm未超过限制高度,满足稳定性要求。Aiming at the 25 t truck crane,a complex multi-rigid body system dynamic model is established,and the stability of the whole machine is discussed.Three typical working conditions of boom length are selected,the dynamic simulation of the sudden unloading of the boom at a position perpendicular to the side tipping line during crane operation is carried out,and the contact force between the outrigger and the ground is calculated by the iMPact function method,and the result is The vertical displacement of the outriggers varies with time.The results show that under the three most dangerous working conditions,the maximum displacement of the crane legs from the ground by 5 mm does not exceed the limit height,which meets the stability requirements.

关 键 词：汽车起重机 动力学仿真 整机稳定性 

分 类 号：TH131.3[机械工程—机械制造及自动化]