摘要
旋转机械运转时其旋转部件引起的故障 ,其产生的振动和噪声所表现出的特征和轴的转速有密切关系。在这类故障的特征分析中 ,使用阶比谱分析比一般的频域分析更具有优势。文中对两种典型的阶比跟踪法进行了较为系统的论述。在此基础上提出并介绍了正在研究的时频分析阶比跟踪技术 ,时频分析阶比跟踪技术用纯软件的方法实现阶比跟踪 ,是对原有技术的有力补充 ,特别适合于虚拟测试仪器发展的要求 。
The fault character of moving parts of rotating machinery most time is speed related. The method of order spectrum analysis is more efficient than usual frequency analysis.Two general methods for realizing order tracking are discussed, and a new order tracking method based on time-frequency analysis is proposed. The time frequency order tracking method only depends on software for order tracking, which is a strong supplement to traditional methods, and specially satisfied the require of virtual instruments, so there is a good prospect for its using.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第5期17-20,24,共5页
Journal of Chongqing University
关键词
旋转机械
阶比跟踪
时频分析
虚拟仪器
rotating machinery
order tracking
time frequency analysis
virtual instruments
