The natural frequencies of beam are calculated with finite element method in the cases of different crack width and different crack depth.
本文利用有限元法分别计算在不同的裂纹深度、不同的裂纹开口宽度的情况下梁的固有频率。
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。
The natural frequencies of the intelligent beam with the rotary inertia and shear deformation of the beam are lower than that without those.
考虑梁的转动惯量和剪切变形时，智能阶梯梁的频率比没有考虑时的要低。
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