Experimental Modal Analysis of Roller Gap Sensor Structure on Hot Rolling Mill

This research has carried on the vibration test to the roller gap displacement sensor structure by the one-point excitation and multi-point acceleration response. Based on the experimentation modal analysis theory, the modal parameters of the sensor structure have been extracted by the least square complex exponent (LSCE) method. The analysis results take the vital significance in establishing simulation model of the rolling mill depress system as well as carrying on the structure dynamics modification.