Kinematic-model-free control for space operations with continuum Manipulators
File(s)Frazelle_Aerospace-2021 (1).pdf (14.25 MB)
Accepted version
Author(s)
Frazelle, Chase
Walker, Ian
AlAttar, Ahmad
Kormushev, Petar
Type
Conference Paper
Abstract
Continuum robots have strong potential for application in Space environments. However, their modeling is challenging in comparison with traditional rigid-link robots. The Kinematic-Model-Free (KMF) robot control method has been shown to be extremely effective in permitting a rigid-link robot to learn approximations of local kinematics and dynamics (“kinodynamics”) at various points in the robot's task space. These approximations enable the robot to follow various trajectories and even adapt to changes in the robot's kinematic structure. In this paper, we present the adaptation of the KMF method to a three-section, nine degrees-of-freedom continuum manipulator for both planar and spatial task spaces. Using only an external 3D camera, we show that the KMF method allows the continuum robot to converge to various desired set points in the robot's task space, avoiding the complexities inherent in solving this problem using traditional inverse kinematics. The success of the method shows that a continuum robot can “learn” enough information from an external camera to reach and track desired points and trajectories, without needing knowledge of exact shape or position of the robot. We similarly apply the method in a simulated example of a continuum robot performing an inspection task on board the ISS.
Date Issued
2021-06-07
Date Acceptance
2021-06-01
Citation
Proc. 2021 IEEE Conference on Aerospace, 2021, pp.1-11
ISSN
1095-323X
Publisher
IEEE
Start Page
1
End Page
11
Journal / Book Title
Proc. 2021 IEEE Conference on Aerospace
Copyright Statement
© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Identifier
https://ieeexplore.ieee.org/document/9438380
Source
IEEE Conference on Aerospace
Place of Publication
USA
Publication Status
Published
Start Date
2021-03-06
Finish Date
2021-03-13
Coverage Spatial
Big Sky, MT, USA
Date Publish Online
2021-06-07