内燃机曲轴振动特性的三维模拟--基于二次Timoshenko梁单元

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本文在有限元法的基础上,采用基于一阶剪切变形理论的三节点、二次Timoshenko梁单元模拟内燃机曲轴结构,对一直列式四缸发动机曲轴进行了自由振动特性分析,并与相关研究和实验数据进行了比较;随后,进一步模拟此曲轴的三维动态振动特性,计算并分析了其动态振动响应的结果.
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