...ing Exponent ) 阻尼固有频率 (Damped Natural Frequency) 对数减幅系数 (Logarithmic Decrement) 主频率 (Principal Frequency) 无阻尼模态频率..
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principal frequency of bandpass 通频带主频
principal vibration frequency 主振频率
principal and additional vibration frequency 附振频率 ; 主振频率
Dynamic characteristics of collaborated system mainly include natural vibration frequency and principal mode, which is the base and precondition of dynamic analysis for collaborated system.
协作体系的动力特性主要包括体系的自振频率和主振型，它是协作体系结构动力分析的基础和前提。
The natural frequency and vibration mode are the principal modal parameters representing structure dynamic behavior as well as the important basis for evaluating bridge dynamic performance.
固有频率和振型是反映结构动力特性的主要模态参数，是评价桥梁动力性能的重要依据。
This paper distinguishes principal noise source of the hoist, it is passed through-noise experiment and frequency analysis with the hoist.
本文通过对提升绞车的噪声试验和频谱分析，鉴别了提升绞车的主要噪声源。
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