In this paper, the contribution of high order mode shape to the frequency response function of disproportional damping structure is expressed by using low order mode shape and system matrix.

本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构频响函数的贡献。

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For the case of hydrodynamic noise, in which the range of the frequency-thickness product of interest is relatively low, the symmetric zero-order mode dominates the noise radiation.

对于水动力噪声情况，感兴趣的频率厚度乘积相当低，这时零阶对称模式对噪声辐射起主要作用。

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The research goes deep into the traditional methods and theories in order to develop a new control mode of flow manufacturing which can adapt to high-mix and low volume environment.

在研究分析传统理论的基础上深入研究了面向多品种小批量生产环境的混流生产运作控制新模式。

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