DEVICE AND METHOD FOR COMPUTING AND CONFIRMING VIBRATION LEVEL OF HIGH-SPEED ROTARY EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a device and a method for easily and accurately computing the level of equipment self-vibration in cylindrical mode that high-speed rotary equipment causes by relatively high-speed rotation. SOLUTION: This vibration level computing and confirming device 1 has a rotational frequency detecting means 5, a vibration detecting means 6, a filter 7 which passes only a vibration output of the frequency band of vibration in conic mode, and an arithmetic means 8 which computes the vibration level of the equipment in the conic mode from the vibration output passed through the filter 7 and then linearly converts the vibration level in the conic mode to compute the vibration level of the equipment in the cylindrical mode. The vibration level in the cylindrical mode is computed according to linear correlation characteristics found between the vibration level in the conic mode and the vibration level in the cylindrical level. The rotary equipment needs not be placed in high-rotating operation wherein vibration in the cylindrical mode is caused and the vibration level in the cylindrical mode which is a problem regarding noise is easily and accurately confirmed and can be utilized for shipment management.