The initial fourth order natural frequency are obtained through natural vibration analysis.

通过固有振动特性分析,得到振动系统的前四阶固有频率.

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It is important for random vibration analysis of the inclined isolator system.

这对随机激励下斜置隔振系统的振动分析有重要的指导作用.

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This paper presents the and trend of drill string vibration analysis technique abroad and at home.

该文概括了钻具振动分析技术的国内外发展概况及其在我国的应用前景.

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Strength and vibration analysis is the fundamental base for the safety operation of centrifugal compressors.

离心压缩机叶轮的强度与振动分析是离心压缩机安全运行的基本保障.

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Based on the virtual boundary element method, a approach free vibration analysis of plate is presented.

样条虚边界元法是针对传统间接奇异边界元法存在的问题而提出的一种半解析半数值方法.

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The random vibration analysis of stochastic antenna structures under wind excitation is studied in this paper.

研究随机天线结构的风激随机振动响应问题.

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Mechanics model for lengthwise vibration analysis of deep well drill string is established.

本文以整体钻柱为研究对象,建立了深井钻柱纵向振动分析的力学模型.

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These methods include damage identification based on vibration analysis, X - ray methods and various artificial intelligence methods.

如基于振动分析的损伤识别法 、 X 射线法及各种人工智能方法等.

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