摘要
针对应变式压杆测试系统在冲击波的超压测量中存在动态响应不足的问题,建立了激波管校准平台。采用系统辨识建模和动态补偿的方法,将时域分析和频域估计相结合,设计了一种动态补偿滤波器,改善了压杆测试系统的动态特性,使频带展宽,响应时间减少。
A shock-tube calibration platform was established to solve the insufficient dynamic response of a pressure bar test system in the shock wave measurement for chemical explosive experiments.The dynamic characteristics of the pressure bar test system was investigated by adopting the following methods such as system identification,dynamic compensation and the combination of time domain analysis and frequency domain estimation.A new-type dynamic compensation filter was designed to improve the dynamic characteristics of the test system.And the compensation effect was tested.The results show that the frequency bandwidth of the test system is expanded and the response time is reduced.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2011年第2期210-214,共5页
Explosion and Shock Waves
关键词
爆炸力学
校准平台
动态补偿
压杆测试系统
系统辨识
冲击波
mechanics of explosion
calibration platform
dynamic compensation
pressure bar test system
system identification
shock wave
