力限振动试验技术应用与研究

首先介绍传统加速度振动试验产生过试验的主要原因；接着介绍机械阻抗特性，给出视在质量、有效质量及剩余质量的定义；然后通过对复杂二自由度方法进行理论推导，给出力限试验条件的制定方法；最后以铝板为例，建立典型力限控制试验方案，提出力限试验方法及试验步骤。从试验结果看，力限控制试验方法是缓解试件过试验的一种有效方法。

Application and Research on Force Limited Vibration Testing Method

This paper introduces the reasons of overtesting in traditional vibration test. In addition, structural impedance characterization is introduced. It defines the apparent mass, the effective mass and the residual mass. Detailed calculations for force limitation specification are presented on the basis of the model of complex two degree of freedom method. Finally, taking the aluminium plate as the example, it establishes a typical force limited test project, and summarizes the method and procedure of the force limited control test. Thus the test result shows that the overtesting problem is solved by using the force limited control test method.