Articles | Volume 17, issue 1
https://doi.org/10.5194/ms-17-33-2026
https://doi.org/10.5194/ms-17-33-2026
Research article
 | 
30 Jan 2026
Research article |  | 30 Jan 2026

A data-driven dynamic modeling method for servo actuators

Baoyu Li, Xin Xie, Guangan Ren, Dapeng Fan, and Juntao He

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Cited articles

Baş, H. and Karabacak, Y. E.: Machine learning-based prediction of friction torque and friction coefficient in statically loaded radial journal bearings, Tribol. Int., 186, 108592, https://doi.org/10.1016/j.triboint.2023.108592, 2023a. 
Baş, H. and Karabacak, Y. E.: Triboinformatic modeling of the friction force and friction coefficient in a cam-follower contact using machine learning algorithms, Tribol. Int., 181, 108336, https://doi.org/10.1016/j.triboint.2023.108336, 2023b. 
Brunton, S. L. and Kutz, J. N.: Data-Driven Science and Engineering: Machine Learning, Dynamical Systems, and Control, Cambridge University Press, Cambridge, https://doi.org/10.1017/9781108380690, 2019. 
Chen, J., Zhu, R., Chen, W., Li, M., Yin, X., and Dai, G.: Nonlinear dynamic modeling and analysis of helical gear system with time-varying backlash caused by mixed modification, Nonlinear Dynam., 111, 1193–1212, https://doi.org/10.1007/s11071-022-07872-y, 2023. 
Cheng, S., Hu, B.-B., Wei, H.-L., Li, L., and Lv, C.: Deep Learning-Based Hybrid Dynamic Modeling and Improved Handling Stability Assessment for Autonomous Vehicles at Driving Limits, IEEE T. Veh. Technol., 74, 5582–5593, https://doi.org/10.1109/TVT.2024.3515209, 2025. 
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Short summary
The performance of servo actuators is significantly affected by factors such as friction and backlash. Simplified analytical models have difficulty meeting the increasing demands of control systems. Therefore, this study proposes a new data-driven method for modeling nonlinear factors. Through experimental verification, the newly proposed modeling method significantly improves the accuracy of nonlinear models. This achievement provides strong support for the precise control of servo actuators.
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