Spider-inspired anti-impact hydraulics-based structure for on-orbit capture

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

1 Scopus Citations
View graph of relations

Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)14925–14956
Journal / PublicationNonlinear Dynamics
Volume111
Issue number16
Online published4 Jul 2023
Publication statusPublished - Aug 2023

Abstract

An ever-growing number of malfunctioning satellites and space debris now pose a severe threat to space activities, such that on-orbit capture of non-cooperative targets has become an urgent task. During on-orbit capture missions, considering the uncertainty of the targets’ motion, targets would inevitably exert a mechanical impulse on the satellite platform that could seriously compromise its stability. Thus, an anti-impact structure is required to be incorporated into the capture mechanism of the satellite platform to protect it. However, conventional bio-inspired quadrilateral shape (BIQS) anti-impact structure requires large installation space (up to six meters) owing to its weak nonlinear damping property and strong coupling of damping and stiffness properties arising from geometric nonlinearity, leading to severe stability and loading issues. To solve these issues, a spider-inspired anti-impact hydraulic-based (SIAH) structure is proposed for the first time in this paper. Concretely, the linear damper of the BIQS structure is replaced by a hydraulic damper, converting geometric nonlinearity into component nonlinearity. In view of the practical working conditions of on-orbit missions, i.e., the movement of the satellite platform and the mass of the capture target, the SIAH structure has the potential to achieve much better anti-impact performance and stability with an almost optimal size of the structure. All of these benefits result from nonlinear damping, nonlinear stiffness and weak coupling of damping and stiffness properties owing to the application of the hydraulic damper. Specifically, the nonlinear damping and nonlinear stiffness are able to improve the anti-impact performance of the structure without sacrificing the stability, and the weak coupling of damping and stiffness properties can solve the competing effects of different parameters in the designing process. Moreover, experiments utilizing the air-bearing table are carried out, eliminating complex friction incurred by use of the rail in previous experiments. The experiments generate consistent results and verify the correctness of the simulations. © 2023, The Author(s), under exclusive licence to Springer Nature B.V.

Research Area(s)

  • Air-bearing table, Bio-inspired anti-impact structure, Decoupling of damping and stiffness, Nonlinear damping, Nonlinearity of component

Citation Format(s)

Spider-inspired anti-impact hydraulics-based structure for on-orbit capture. / Chen, Zihao; Yue, Xiaokui; Jing, Xingjian et al.
In: Nonlinear Dynamics, Vol. 111, No. 16, 08.2023, p. 14925–14956.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review