A frequency domain dynamic response approach to optimize the dynamic performance of grinding machine spindles

作者：Guo, Miaoxian^*; Jiang, Xiaohui; Ding, Zishan; Wu, Zhouping

来源：International Journal of Advanced Manufacturing Technology, 2018, 98(9-12): 2737-2745.

DOI：10.1007/s00170-018-2444-5

• Dynamic response
• Optimization
• Dynamic performance
• Grinding machine spindles

The dynamic performance of the grinding machine spindle determines its ultimate vibration resistance and the machining accuracy. To gain better dynamic performance of the grinding machine spindle system, the integrated evaluation and optimization method should take both manufacturing process and machine tool into account. In this paper, a frequency domain dynamic response approach is proposed to study the optimization. This approach considers the dynamic grinding force from the view of spindle imbalance and frequency response FRF) by means of modal frequency and dynamic stiffness. The dynamic grinding force is analyzed experimentally to verify the vibration excitation force in process. Furthermore, the optimization process by finite element method is conducted with the intermediate dynamic parameter improvement by structural optimum design. Applying on a high-speed machine tool, the case studies are illustrated to demonstrate the implementation of the proposed method; the dynamic response optimization approach results shows, to achieve the vibration response in grinding process, it is necessary and priority to improve the dynamic stiffness of the spindle.

• 出版日期2018-10
• 单位上海理工大学