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首页> 外文期刊>Mechanism and Machine Theory: Dynamics of Machine Systems Gears and Power Trandmissions Robots and Manipulator Systems Computer-Aided Design Methods >Bond graph modeling of dynamics of soft contact interaction of a non-circular rigid body rolling on a soft material
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Bond graph modeling of dynamics of soft contact interaction of a non-circular rigid body rolling on a soft material

机译：在软材料上滚动的非圆形刚体的软接触相互作用动力学的键图建模

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The bond graph model for soft contact interaction between a circular rigid body and a soft material has already been developed and validated experimentally in a previous work. The present work further extends the approach to soft contact interaction for non-circular rigid bodies rolling on soft material which is difficult to model otherwise. An elliptical disc is taken as the non-circular rigid body as an example. An algorithm is developed to detect nodes of the soft material which contact the disc at any time. The contact interface between the two surfaces is assumed to be viscoelastic which is the penalty approach with additional dissipation. The model is applicable for all geometries of the rigid body. The contact model also takes normal force and tangential frictional force into account. The model dynamically determines the number of contact nodes, and hence the contact area at any time as the contact interface changes. Results of simulation of the model, based on code generated algorithmically from the bond graph structure, provide better understanding of the soft contact interaction issues involved. (C) 2014 Elsevier Ltd. All rights reserved.
机译：在先前的工作中，已经开发出了用于圆形刚体和软材料之间的软接触相互作用的键合图模型，并通过实验进行了验证。本工作进一步扩展了在柔软材料上滚动的非圆形刚体的软接触相互作用的方法，否则很难建模。以椭圆盘为非圆形刚体为例。开发了一种算法来检测软材料的随时与光盘接触的节点。假定两个表面之间的接触界面是粘弹性的，这是带有附加耗散的惩罚方法。该模型适用于刚体的所有几何形状。接触模型还考虑了法向力和切向摩擦力。该模型动态确定联系节点的数量，并因此确定联系界面更改时随时的联系面积。基于从键合图结构算法生成的代码的模型仿真结果，可以更好地理解所涉及的软接触交互问题。 （C）2014 Elsevier Ltd.保留所有权利。

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