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基于ANSYS有限元分析软件对履带起重机吊臂进行了有限元模态分析,得到了各阶模态下吊臂的固有频率和振型,了解不同频率载荷对吊臂的影响,提出了设计改进措施,并找出外部激励应当尽量避免的危险频率。
Based on the finite element analysis software ANSYS, the finite element modal analysis of boom crane is carried out. The natural frequencies and mode shapes of the boom under different modes are obtained. The influences of different frequency loads on the boom are obtained. The design improvement measures , And find out the dangerous frequency of external incentives should be avoided.