Research on low-speed characteristics of differential double-drive feed system
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Published:2021-08-13
Issue:2
Volume:12
Page:791-802
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ISSN:2191-916X
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Container-title:Mechanical Sciences
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language:en
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Short-container-title:Mech. Sci.
Author:
Wang ZhaoguoORCID, Feng Xianying, Yang Hongtao, Jin Huawei
Abstract
Abstract. It is difficult to achieve high-precision control due to frictional nonlinearity by traditional linear control methodology for the classical
drive feed system at low speed. Here, the double-drive differential feed
system is proposed to reduce the influence of the nonlinear friction at the
ball screw pair of a linear feed system operating at low speed. The dynamic
models and the LuGre friction models of the classical drive feed system and
the double-drive differential feed system are established, respectively.
Based on these, the simulation models of the classical drive feed system and
the double-drive differential feed system are established in MATLAB to study
the critical creeping velocity of the table. Compared with the classical
drive feed system, a lower stable velocity can be obtained for the table
with the double-drive differential feed system, because the speed of both
motors in the double-drive differential feed system is higher than the
critical creeping speed of the classical drive feed system screw motor,
thereby overcoming the influence of the Stribeck effect and avoiding the
frictional nonlinearity at low speed.
Funder
Science and Technology Development Plan of Shandong Province Innovative Research Group Project of the National Natural Science Foundation of China
Publisher
Copernicus GmbH
Subject
Industrial and Manufacturing Engineering,Fluid Flow and Transfer Processes,Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering,Control and Systems Engineering
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