介绍了重载车辆的特点、国外概况、国内现状及我国重载货车的改进研究。
The characteristics, general conditions abroad, present state at home and the improvement research of heavy haul cars in our country are described.
但是这些连接方法由于自身的缺点和局限性，不能满足重载货车的要求，因此需要采用新型的连接方式。
But these joined methods can not satisfy the requirement of the heavy load wagon because of the shortcoming and self limit, therefore needs adopt the new way of joining.
基于非线性有限元软件MARC，对重载货车中大量使用的BOM连接器力学行为进行了数值仿真研究。
Based on nonlinear FE software MARC, numerical simulation of BOM fastener mechanics in heavy load wagon is studied. The key technology in constructing the finite element model is discussed.
基于非线性有限元软件MARC，对重载货车中大量使用的BOM连接器力学行为进行了数值仿真研究。
Based on nonlinear FE software MARC, numerical simulation of BOM fastener mechanics in heavy load wagon is studied. The key technology in constructing the finite element model is discussed.
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