大型柔性起重臂系统回转吊装刚柔耦合动力学模型

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (5) : 175-179.

论文

颜世军，彭剑，刘泽，刘运思

作者信息 +

Rigid-flexible coupled dynamic model of a huge-type truck crane's boom system during its slewing hoisting

YAN Shijun，PENG Jian, LIU Ze，LIU Yunsi

Author information +

文章历史 +

摘要

对超大吨位轮式起重机臂架系统回转吊载时的耦合动力学特性进行了研究。利用混合坐标系描述吊臂与吊物系统的刚体运动与弹性振动，采用拉格朗日方程推导并给出了臂架系统的动力学分析模型，以梁杆单元对臂架结构进行离散，构建了该模型的有限元分析格式。模型综合考虑了回转臂架的惯性力效应、几何非线性效应和刚柔耦合效应。对某超大吨起重机进行了动态仿真，并与实测数据进行了对比，结果表明模型具有较好的准确性。

Abstract

Here, rigid-flexible coupled dynamic behaviors of a huge-type truck crane's boom system during its slewing hoisting were studied. A dynamic model for the system was built using Lagrange's equations and a hybrid frame reference to describe motions of the boom system and the lift load one. Using beam and rod elements to discrete the structure, a finite element analysis form for the model was constructed considering rigid-flexible coupled effects, inertial force effect and geometric non-linear ones of the system. A certain huge-type truck crane system was simulated with the proposed model, the results were compared with those of actual tests. It was shown that the proposed rigid-flexible coupled dynamic model has a better correctness.

导出引用

颜世军，彭剑，刘泽，刘运思. 大型柔性起重臂系统回转吊装刚柔耦合动力学模型[J]. 振动与冲击, 2018, 37(5): 175-179

YAN Shijun，PENG Jian, LIU Ze，LIU Yunsi. Rigid-flexible coupled dynamic model of a huge-type truck crane's boom system during its slewing hoisting[J]. Journal of Vibration and Shock, 2018, 37(5): 175-179

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