Sparse identification for ball-screw drives considering position-dependent dynamics and nonlinear friction

Xu Liu,Yingguang Li,Yinghao Cheng,Yu Cai

Robotics and Computer-Integrated Manufacturing（2023）

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摘要

•Ball-screw drives are modeled as LPV systems under nonlinear friction disturbance.•Position-dependent dynamics and nonlinear friction are both considered.•The proposed model has global linear structure.•Only one global random excitation experiment is needed for modeling.

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关键词

Ball-screw drives,Linear parameter-varying systems,Nonlinear dynamic systems,Sparse identification,Model-based control

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