Dynamic responses of hydraulic mobile crane with consideration of the drive system
Dynamic responses of hydraulic mobile crane with consideration of the drive system
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DOI：
10.1016/s0094-114x(03)00099-5
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发表时间：
2003-12-01
影响因子：
5.2
通讯作者：
Kleeberger, M
中科院分区：
文献类型：
--
作者：
Sun, GF;Kleeberger, M
移动式起重机的动态特性不仅取决于钢结构和外部载荷，而且还取决于驱动和控制系统。在当今移动式起重机的动态计算中，驱动系统是通过“运动学强迫”的方法或通过对驱动系统输出的测量来建模的。为改善这一现状，提出了一种新的移动式起重机动态计算方法。在该方法中，结构的柔性多体模型将与驱动系统的模型相耦合。这样可以在一个完整的模型中确定结构的弹性变形、刚体运动和传动系统的动态行为。该计算方法已在某液压移动式起重机上实现。介绍了液压传动与控制系统的数学模型，给出了系统的结构原理。进行了起重机在任意工况下的回转仿真。结果，不仅对于起重机结构，而且对于传动系统，实现了对动态行为的更准确的表示。(C)2003爱思唯尔有限公司。保留所有权利。
The dynamic behaviour of mobile cranes is determined not only by the steel structures and the external loads but also by the drive- and control systems. In today's dynamic calculation of mobile cranes, the drive systems are modelled through the method of "kinematic forcing" or by measurements for outputs of the drive system. To improve this situation, a new method for dynamic calculation of mobile cranes has been developed. In this method, the flexible multibody model of the structure will be coupled with the model of the drive system. In that way the elastic deformation, the rigid body motion of structures and the dynamic behaviour of the drive system can be determined in an integrated model. The calculation method has been realized for a hydraulic mobile crane. In addition to the structural elements, the mathematical modelling for hydraulic drive- and control system is described. The crane rotating simulation for arbitrary working conditions has been carried out. As a result, a more exact representation of dynamic behaviour, not only for the crane structure, but also for the drive system is achieved. (C) 2003 Elsevier Ltd. All rights reserved.