Abstract
Considering the flexibility of the shaft and joints between the motor and the load, the servo drive system can be regarded as a dual-inertia system. Firstly, flexible components in the servo system such as coupling are equivalent to flexible joints, and the servo drive system with transmission efficiency is established. Next, a gear model including the variable friction coefficient, stiffness, backlash, and transmission error is built, and the transmission efficiency is calculated by the gear vibration displacement and speed. Then, the PI controller parameters are obtained by three pole assignment methods, and the adaptive controller with adjustable PID parameters is designed based on the BP neural network. Finally, the speed change at the load side with three pole assignment methods and BP-PID method is analyzed. The effects of control parameters and methods on the dynamic characteristics of gear are studied.
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The data used to support the findings of this study are included within the article. The processed data are available from the corresponding author upon request.
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Funding
The project is supported by the National Natural Science Foundation of China (No. 52275090), the Fundamental Research Funds for the Central Universities (N2103025), and the National Key Research and Development Program of China (2020YFB2007802).
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Xu, J., Li, X., Su, J. et al. Dynamic characteristics analysis of gear system with time-varying torque of motor and load based on motor control strategy. Nonlinear Dyn 112, 2611–2628 (2024). https://doi.org/10.1007/s11071-023-09193-0
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DOI: https://doi.org/10.1007/s11071-023-09193-0