本文用等效线弹簧模型计算裂纹转轴的动力稳定性问题。

In this paper, the equivalent line-spring model is employed to study the dynamic stability of a rotating cracked shaft.

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利用等效线弹簧模型近似计算了含裂纹转动轴的自由振动基频。

In this paper a model of the equivalent linear spring is proposed for approximately calculating fundamental frequencies of a vibrating shaft with an arbitrary crack.

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根据现有资料情况，确定了采用等效线中心投影的构像模型作为几何处理的数学基础。

According to the image data possessed, the formation model of equivalent line central projection is adopted to establish the correspondence between image and object space.

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