Vibration Performance Improvement of Medical Rotating Systems Through Structural Parameter Optimization

An integrated structural parameter optimization method is presented to improve the vibration performance of medical rotating systems. Key geometric and material parameters were selected using sensitivity analysis, and a response surface model was constructed based on 48 finite element simulations. The optimization objective was to minimize vibration displacement under operational speeds between 300 and 900 rpm. Results indicate that optimized designs reduced maximum vibration displacement by 31.2% while maintaining structural stiffness within ±5% of the original design. The proposed framework provides an effective pathway for vibration reduction without introducing additional damping devices.