Hot Rolling mill Self-vibration Mechanism Analysis and Vibration Source Diagnoses

摘要：

An approach of field multi-point vibration test for hot rolling mill housing is presented. The self-vibration mechanism was lucubrated and the vibration source was diagnosed, both using the technology of power spectrum analysis and wavelet package analysis of vibration signal. Analysis result showed that the structure of feedback path displacement sensor is the impressionable place in the AGC system. It leads to the AGC system unstable. Structural parameter of the displacement sensor was not reasonable will result in the serious distortion of the displacement feedback signal, and will induce the self-excitation vibration of the mill housing. The analysis result and the diagnoses conclusion are very significant for establishing the strategy of structural dynamics modification and vibration restraining of hot rolling mill.

关键词： Rolling mill self-excitation vibration Vibration testing Wavelet package vibration mechanism analysis vibration source diagnoses

作者: MA Weijin LI Fenglan XIONG Shibo MA Yaoguang

作者单位: Mechanical Engineering and Automatization College of North University of China, Taiyuan, 030051 Mechano-Electronic Engineering Institute of Taiyuan University of Technology, Taiyuan, 030024, China Photoelectric Engineering College of Nanjing University of Science and Technology, Nanjing , 210094,

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）