Whether there exists a periodic impulse component in a vibration signal is an important sign of a mechanical device being faulty.
机械设备振动信号中是否存在周期性的冲击分量是其有无故障的重要标志。
It will introduce the responses of the step, ramp and impulse input for mechanical and circuit systems by using Laplace transform.
本课程将介绍机械与电路等系统的模式，利用拉氏转换决定步阶，斜坡及脉冲等输入的响应。
It is important to exactly extract impulse response information from complex vibration signals for mechanical fault diagnosis.
在复杂的振动信号中准确提取出冲击响应信息在机械故障诊断中具有重要的意义。
Based on the mechanical principle, shell structures are designed such that improved stability and capacity under deformation earth pressure and impulse load can be achieved.
根据地面大跨度板壳原理设计出网壳结构，该结构稳定性强，能承受较大变形地压及冲击荷载。
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 paper investigates the motion of mechanical systems with non-holonomic constraints under a given impulse.
本文研究受有非完整约束的力学系统在给定打击冲量下的运动。
Aiming at the zinc residue in the weld joint nugget of DP590GA, a double-impulse welding parameter with preheating impulse is designed to further improve its mechanical properties of the weld joint.
并针对DP590GA焊点熔核中锌元素的残留现象，设计出加预热的双脉冲焊接规范，进一步改善其点焊接头的力学性能。
Aiming at the zinc residue in the weld joint nugget of DP590GA, a double-impulse welding parameter with preheating impulse is designed to further improve its mechanical properties of the weld joint.
并针对DP590GA焊点熔核中锌元素的残留现象，设计出加预热的双脉冲焊接规范，进一步改善其点焊接头的力学性能。
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