In the analysis of the stress and deformation under dynamic loading, the inertia force and damping moment should be considered in addition to the transverse shear effect.

在分析动载荷下的应力和变形时，除考虑横向剪切效应外，还须考虑微段的惯性力和阻尼力矩。

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From numerical example, the effect of shear deformation and rotatory inertia on the natural frequencies of the Timoshenko clamped beam is discussed under different slender conditions.

通过算例，计算了在不同长细比条件下，剪切变形和转动惯量对固端梁的各阶主频率的影响。

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It is also shown that the influence of the rotary inertia of the mass block on the shear failure is not negligible.

质量块的转动惯量对于剪切失效具有不可忽略的影响。

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