A theoretical method of the PSD of random excitation force in Wheec-rail system is advanced on the principle of mechanical impedance.
采用机械阻抗原理，给出了轮轨系统随机激振力功率谱密度函数的理论计算方法。
The mechanical process is analyzed by using method of mechanical impedance and the measurement error equations are given.
利用机械阻抗方法分析这类传感器工作的力学过程，给出压电式传感器的测量误差表达式。
Modal mechanical impedance synthesis analysis (MMISA) is a new subsystem vibration analysis method and a new approach based on traditional mechanical impedance synthesis analysis.
模态机械阻抗综合法是一种新的动态子结构振动分析方法，是传统机械阻抗综合法的推广。
In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiation head by using impulse sound tube is proposed.
本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。
This article introduces the method of mechanical impedance employed in the non-destructive quality-control of the foundation pile.
本文介绍了机械阻抗法无破损检验桩基础质量。
This article introduces the method of mechanical impedance employed in the non-destructive quality-control of the foundation pile.
本文介绍了机械阻抗法无破损检验桩基础质量。
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