模型基础动力参数变扰力自动化测试的实现

The Implementation of Automatic Test for the Dynamic Parameters of Model Foundation with Variable Disturbance

模型基础动力参数变扰力测试若采用人工方式控制测试过程、采集振动波形、处理测试数据,工作效率低,劳动强度大。基于虚拟仪器方案的模型基础动力参数变扰力自动化测试系统由笔记本电脑及数据采集卡组成,通过控制变频器对机械式激振器的振动频率进行程序控制,激振的同时自动采集模型基础振动信号,可以实现测试过程自动化,具有装置简单、工作效率高、精度高、可靠性好等优势,使模型基础动力参数测试的过程变得简单、高效。

If the test for dynamic parameters of model foundation with variable disturbance adopts manual methods to control the test process,collect vibration waveforms,and process the test data,the work efficiency is low and the labor intensity is large.Composed of a notebook computer and a data acquisition card,the automatic test instrument of the model foundation dynamic parameter with variable disturbance based on the virtual instrument scheme was provided.This instrument could control the vibration frequency of the mechanical exciter by controlling the frequency converter,and the vibration signal of the model foundation can be automatically collected according to the program setting,so as to realize the automation of the test process.The automatic test instrument have a simple device,and have advantages of highwork efficiency,high precision and good reliability,making the process of testing simple and efficient.