由于这类轴具有较小的长径比，因此，在分析它的振动时，采用铁木辛柯梁理论比欧拉梁理论更为合适。

Because of the smaller ratio of slenderness, the theory of Timoshenko beam is more suitable than Bernoulli-Euler beam's for analysis of the dynamic behavior of stepped shaft.

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以广义移动最小二乘法为理论基础，将同时考虑挠度和转角双变量的无单元法运用于欧拉梁的动力特性计算与分析。

Based on the generalized moving least square method, a new Element-Free Galerkin (EFG) double-variable approximation is applied to dynamic characteristic calculation and analysis of Euler beam.

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