An accurate modal superposition method for calculating frequency response function of viscoelastically damped structures is put forward.

本文建立了粘弹阻尼结构频响函数计算的高精度模态展开法。

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A linear ultrasonic motor was put forward. Elliptical motions of the surface points of the stator are generated by the superposition of longitudinal and bending modes of the oscillating structures.

提出了一种基于薄板面内振动的纵弯模式驻波直线超声波电动机。

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