This paper made some research on the modeling of some city bus body, FEM static intensity analysis and structure optimization.
本文对某型大客车进行有限元静态分析，探讨客车车身建模、强度分析与结构优化。
Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算，最后反推出叶片在旋转状态下振动应力值的大小。
Because only static intensity and stability analysis is considered and dynamic calculation is usually neglected in design, the problems like heavy vibration and local weak rigidity have appeared.
由于设计时仅进行了静强度和稳定性计算，而没有进行动力计算，在使用过程中出现了有时振动过大、个别部位刚度弱的问题。
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