东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (10): 1469-1472.DOI: -

• 论著 • 上一篇    下一篇

基于多体动力学的混凝土泵车臂架的运动分析

戴丽;刘杰;刘宇;赵丽娟;   

  1. 东北大学机械工程与自动化学院;东北大学机械工程与自动化学院;东北大学机械工程与自动化学院;辽宁工程技术大学大型工矿装备研究中心 辽宁沈阳110004;辽宁沈阳110004;辽宁工程技术大学大型工矿装备研究中心;辽宁阜新123000;辽宁沈阳110004;辽宁阜新123000
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-10-15 发布日期:2013-06-26
  • 通讯作者: Dai, L.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50535010);;

Kinematic analysis based on multi-body dynamics for placer jib of concrete pump truck

Dai, Li (1); Liu, Jie (1); Liu, Yu (1); Zhao, Li-Juan (2)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China; (2) Experiment and Study Center of Heavy Engineering and Mining Equipments, Liaoning Technical University, Fuxin 123000, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-10-15 Published:2013-06-26
  • Contact: Dai, L.
  • About author:-
  • Supported by:
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摘要： 基于多体动力学理论和拉格朗日方程建立了四节臂混凝土泵车臂架的刚性运动微分方程.通过对泵车臂架运动微分方程的推导和数值求解,对各臂杆的转角和末端轨迹进行了分析.采用动力学仿真软件对混凝土泵车的臂架建立了刚性仿真模型,选取与数值求解相同的参数进行仿真,对比仿真结果和数值求解得到的轨迹,两种方法的结果基本一致.证明了采用多体动力学方法建立的混凝土泵车臂架的运动方程,可以准确地描述泵车的各项动力学特性.

关键词: 混凝土泵车, 多体动力学, 臂架, 仿真

Abstract: Based on the multi-body dynamics and Lagrange equation, the differential equation of rigid motion of the four-bar placer jib of a concrete pump truck is deduced. With the numerical solution to the equation, the rotation angles between every two bars and the jib end track are analyzed. A dynamical simulation software is used to develop the rigid motion model for the jib, in which the same kinematic parameters are selected to those in numerical solution, thus comparing the track as the result of simulation with that numerically solved. It is shown that the two results are basically in conformity with each other. The multi-body dynamics is therefore proved useful to express the movement equation of the placer jib of concrete pump truck with each and all dynamic behavior expressed exactly.

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