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| Research on Chatter Detection and Particle Damping of Elastic Shaft Face Grinding |
| SUN Hao1 , ZHANG Bing2 , TANG Qi1 , WANG Shancheng1 , DONG Chao1 , YAO Bin2 |
| (1. AECC Harbin Dongan Engine Co., Ltd., Harbin 150060, China; 2. Xiamen University, Xiamen 361101, China) |
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Abstract 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.
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2021, 
