Analysis and experiment of static stiffness of linear electromechanical actuator
Analysis and experiment of static stiffness of linear electromechanical actuator
- Author(s): W. Liu 1 ; S. Zhang 1 ; C. Xiao 1 ; J. Liu 1 ; Y. Lu 1 ; Z. Hou 1
- DOI: 10.1049/icp.2021.0436
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- Author(s): W. Liu 1 ; S. Zhang 1 ; C. Xiao 1 ; J. Liu 1 ; Y. Lu 1 ; Z. Hou 1
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View affiliations
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Affiliations:
1:
Beijing Research Institute of Precise Mechatronics and Controls , Beijing, China
Source:
CSAA/IET International Conference on Aircraft Utility Systems (AUS 2020),
2021
p.
749 – 752
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Affiliations:
1:
Beijing Research Institute of Precise Mechatronics and Controls , Beijing, China
- Conference: CSAA/IET International Conference on Aircraft Utility Systems (AUS 2020)
- DOI: 10.1049/icp.2021.0436
- ISBN: 978-1-83953-419-5
- Location: Online Conference
- Conference date: 18-21 September 2020
- Format: PDF
Theoretically, the influence factors of the static stiffness of linear electromechanical actuator are analyzed. The theoretical analysis shows that the ball screw and angular contact ball bearings will cause the actuator stiffness to show nonlinear characteristics under low load, and the calculation formula of the actuator static stiffness is given. Through the experimental tests, the static stiffness of linear electromechanical actuator is measured accurately. The test results show that the stiffness value of the actuator in the low load section is low and nonlinear, and the stiffness in the high load section is linear, which verifies the correctness of the theoretical analysis.
Inspec keywords: nonlinear control systems; mechanical contact; rigidity; ball screws; ball bearings; electromechanical actuators
Subjects: Mechanical components; Tribology (mechanical engineering); Elasticity (mechanical engineering); Nonlinear control systems; Electromechanical actuators