摘要
随着科学技术和生产力的不断发展，测试任务日趋复杂与完善，在工程振动中阻尼比的测试分析越来越深入，对阻尼比稳定性和精度要求也越来越高。大多数分析测试是基于半功率带宽法。文章通过用Matlab对半功率带宽法的结果进行分析，对半功率带宽法的特点、适用范围及影响因素进行探讨，得出了合理的结论及求精确值的方法。
Along with the unceasing technology and productivity development, testing task is more complex and perfect; the damping ratio test analysis is deeper and deeper in the engineering project. The requirement for the stability and the precision is higher than before; the majority of analysis calculation are based on the half power bandwidth method. With the help of Matlab, the results of the half-power bandwidth method are analyzed, and its characteristic and the applicable scope and the influence factor are studied. A reasonable conclusion is made. An accurate solution is put forward.
出处
《实验技术与管理》
CAS
北大核心
2009年第1期92-94,共3页
Experimental Technology and Management
基金
上海市重点学科建设项目资助(B503)
