A Force- and Position-Based Distortion Compensation Method for a Hardware-in-the-Loop Simulator of Space Docking
Publication: Journal of Aerospace Engineering
Volume 37, Issue 3
Abstract
Hardware-in-the-loop simulation is an important way to test the complex contact process of two spacecraft docking in space. Hardware-in-the-loop simulations are known to be unstable and divergent because of various unexpected dynamics, including delays in the system. Existing force compensators for the force-sensing delay, dynamic response delay, and structural deformation of the upper and lower platforms require real-time identification of the contact parameters of the docking mechanisms (DMs), which is difficult because of the unknown contact model structure. However, the existing force- and position-based compensation methods do not consider the structural deformation of the upper platform. In this study, a force- and position-based compensation method is proposed to compensate for the force-sensing delay, actuation-response delay, and structural dynamic position error of the lower and upper platforms. It is not necessary to identify the contact parameters of the DMs. Many verifications by software and experiments show that by using the proposed method, a stable simulation with satisfactory accuracy can be achieved under different simulation conditions. Capture experiments on a space manipulator are provided to demonstrate the applications.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This study is supported by the National Natural Science Foundation of China sunder Grant Nos. 51975351 and 51927809.
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Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 37 • Issue 3 • May 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Jul 22, 2023
Accepted: Nov 9, 2023
Published online: Jan 18, 2024
Published in print: May 1, 2024
Discussion open until: Jun 18, 2024
ASCE Technical Topics:
- Aerospace engineering
- Aircraft and spacecraft
- Buildings
- Construction engineering
- Construction management
- Continuum mechanics
- Deformation (mechanics)
- Distortion (structural)
- Dynamic response
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Existing buildings
- Mathematics
- Parameters (statistics)
- Project delay
- Project management
- Solid mechanics
- Statistics
- Structural behavior
- Structural dynamics
- Structural engineering
- Structural mechanics
- Structures (by type)
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