叶民镇. 地面撞击模型建模及相关参数确定[J]. 工程力学, 2006, 23(10): 107-110.
引用本文: 叶民镇. 地面撞击模型建模及相关参数确定[J]. 工程力学, 2006, 23(10): 107-110.
YE Min-zhen. GROUND MODELING IN MACHINERY-GROUND INTERACTION SYSTEM AND PARAMETER DETERMINATION[J]. Engineering Mechanics, 2006, 23(10): 107-110.
Citation: YE Min-zhen. GROUND MODELING IN MACHINERY-GROUND INTERACTION SYSTEM AND PARAMETER DETERMINATION[J]. Engineering Mechanics, 2006, 23(10): 107-110.

地面撞击模型建模及相关参数确定

GROUND MODELING IN MACHINERY-GROUND INTERACTION SYSTEM AND PARAMETER DETERMINATION

  • 摘要: 在仿真研究机械-地面系统时,常涉及地面建模问题,为此有必要对此作深入研究。结合在联邦德国的研究科题,在分析现有地面模型的基础上给出了地面撞击模型及相关参数的确定方法,并着重讨论分析了模型质量参数与撞击过程中能量转换之间的关系。模拟结果与试验值比较表明,该模型及参数确定方法行之有效。它不仅能较好地模拟地面本身的动态变形过程,而且能逼真地仿真机械-地面之间的相互作用。

     

    Abstract: The modelling of ground is often involved in the simulation of the machinery-ground interaction system. It is essential to study the ground model in more detail. In collaboration with the research in Germany, this paper presents a multi-body ground impact model and the method to determine its correlation parameters based on the analysis of existing ground models. The relationship between the model mass parameter and the energy conversion during impact process is discussed in details. The comparisons between the simulated and experimental results demonstrate that the proposed model and the corresponding parameter determination procedure are effective. This model is not only able to satisfactorily reproduce the dynamic ground deformation process but also simulate the interaction of the machinery-ground system.

     

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