Applications of the vibrating testing apparatus of engine

The engine vibration test system was developed based on PC as hardware workbench,laboratory virtual instrument workbench(LabVIEW)developed by America National Instruments corporation as de- velopment software.By testing the practical vibration,the relationship between bolts tightening torque and body vibration was determined.This would provide a convenience testing and analyzing method for defining the reasonable range of tightened torque of the bolts'.It is of great practical value in guiding vehicle main- tenance,and have certain reference value in engine design and manufacture,too.