The flange of elastic transmission shaft is connected with the shaft by diaphragm

serious chatter will occur in precision grinding of flange end face

resulting in low grinding efficiency and poor quality control. Therefore

a laser displacement sensor is used to measure the vibration displacement data of elastic transmission shaft end face in grinding process. According to the time domain and frequency domain characteristics of end face vibration

a particle damper is designed and the optimization of structural parameters is carried out. Firstly

according to the workpiece structure and grinding process

the installation form and external dimensions of the damper are determined. Then

the performances of different internal parameters are compared by discrete element simulation

and the optimal particle filling scheme is determined. Finally

the vibration suppression effect of the designed particle damper is verified by the experiment of electromagnetic vibration exciter.