针对分析得到的局部不合理结构进行了零件结构和布局的优化设计，使整车刚度更趋合理。
According to the local unreasonable structure, optimize the design of part structure and layout, and make the rigidity of complete vehicle more reasonable.
本文以大客车车身典型零件为研究对象，采用局部应力应变法预测承受高周载荷零构件的疲劳寿命。
In This paper, the method of local stress and strain was used to predict the fatigue life of bus body parts under high cycling load.
对每个零件建立了局部坐标系，计算出不同零件之间的相对位置姿态。
The relative position and orientation between different components are computed as long as local coordinate system is set up to each component.
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