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本文采用金属电阻应变片作为传感器,研究了悬臂梁在动荷载的作用下的若干动态参数的测量,包括固有频率、阻尼系数等。详细叙述了用电阻应变计测试技术测定悬臂梁在动荷载的作用下的若干动态参数的过程以及数据处理的方法;并对所测定悬臂梁的动态参数的准确性进行讨论,指出方案中的优点和不足。
In this paper, a metal resistance strain gauge is used as a sensor to measure the dynamic parameters of the cantilever beam under the action of dynamic load, including natural frequency, damping coefficient and so on. The process of determining the dynamic parameters of the cantilever beam under the action of dynamic load and the method of data processing are described in detail with the resistance strain gauge test technique. The accuracy of the measured dynamic parameters of the cantilever beam is discussed, and the advantages in the solution are pointed out And inadequate.