基于MATLAB的某型履带吊管机吊物系统动态特性分析

Analysis of Dynamic Characteristic of a Pipelayer Crane System Based on MATLAB

吊管机在外部工况激励的作用下会产生危险的大幅摆动,不仅会降低施工的吊装精度,严重时还会引起吊物和结构的碰撞。因此对吊管机进行吊物系统动态特性分析对吊管机的作业安全具有重要的意义。依据吊管机的工作环境,总结和对比国内外的相关研究。建立吊物系统的数学模型,推导吊管机吊物系统的非线性动力学方程,并利用MATLAB进行吊管机吊物系统的数值分析。结果可以看出吊索长度、外部激励频率、吊物的升降速度分别对吊物系统的动态响应、吊物摆振、吊物的面内外摆角产生影响。

Pipelayer is a kind of engineering machinery, which is used in the pipe laying and lifting operation, and it would create a dangerous swing sharply under the external incentives. This can not only reduce the lifting precision, but also cause collisions between hanging objects and structures. So it has great importance for safety of pipelayer operation to analysis its system dynamic characteristic, control and predict shimmy. First the article describes the working environment of pipelayer, then proposes summary and comparison of relevant research of domestic and foreign. In this paper, the mathematical model of hanging objects is established, and MATLAB is used to do data analysis. The result shows that length of the sling, external excitation, landing speedcan lead to a great impact on the dynamic response, shimmy frequency and angel of inner and outer surfaces.