Optimization of vibration isolation structure and experimental study on vibration-isolation thrust bearing

Aiming at the energy leakage caused by lateral contact in the design of vibration isolation structure of vibration-isolation thrust bearing, the improved design idea of vibration isolation structure is put forward. Firstly, the mechanism and key parameters of lateral contact problem in terms of vibration isolation load and vibration transmission are studied. Secondly, the improvement design of thrust bearing vibration isolation structure is studied. Thirdly, the excitation testbed of variable load mass-stiffness system is designed. The results show that the damping problem of lateral contact is significantly improved when vibration isolation structure is symmetrically arranged double spring and linear rolling bearing. The vibration characteristic curve of improved structure is close to that of the pure spring The optimization method of vibration isolation structure can provide important reference for optimization and improvement design of vibration isolation thrust bearing.