Circular Orbit Target Capture Using Space Tether-Net System

Zhai, Guang; Zhang, Jingrui; Zhang, Yao

doi:10.1155/2013/601482

Cited by 24 publications

(9 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the proposal of transferring targets in orbit, such as debris, abandoned satellite, etc., by connecting them to an active spacecraft using tethers, the so called tethered space-tug (TST) system [1,2] has drawn widely interests from the industry and the academia. The technique seems quite promising because of its merits including operational safety, low cost, and special applicability for non-cooperative targets.…”

Section: Introductionmentioning

confidence: 99%

Neural-network-based terminal sliding-mode control for thrust regulation of a tethered space-tug

Zhong

2018

Astrodyn

View full text Add to dashboard Cite

This paper studies the thrust regulation of the tethered space-tug in order to stabilize the target towed by a flexible tether. To compromise between model accuracy and simplicity, a rigid-flexible coupling multi-body model is proposed as the full model of the tethered space-tug. More specifically, the tug and the towed target are assumed as rigid bodies, whereas the flexible tether is approximated as a series of hinged rods. The rods are assumed extensible but incompressible. Then the equations of motion of the multi-body system are derived based on the recursive dynamics algorithm. The attitude motion of the towed target is stabilized by regulating the thrust on the tug, whereas the tether-tension-caused perturbation to the tug's attitude motion is eliminated by the control torque on the tug. The

show abstract

Section: Introductionmentioning

confidence: 99%

Neural-network-based terminal sliding-mode control for thrust regulation of a tethered space-tug

Zhong

2018

Astrodyn

View full text Add to dashboard Cite

show abstract

“…The majority of works were devoted to systems that imply a stage of docking or capturing a transported object by harpoons [1], a net [2], a tether [3], or a robotic manipulator [4]. A detailed overview of the capture tools and methods is given in the work [5].…”

Section: Introductionmentioning

confidence: 99%

Attitude Motion of Cylindrical Space Debris during Its Removal by Ion Beam

Aslanov

Ledkov

2017

Mathematical Problems in Engineering

View full text Add to dashboard Cite

The paper is devoted to the problem of space debris mitigation. Contactless method of the space debris deorbiting is considered. It is assumed that ion thrusters on the active spacecraft create the ion flow, which blows the debris and slows it down. The objectives of this work are the development of mathematical models and the research of space debris motion under the action of the ion flow. It is supposed that the space debris is a rigid body of a cylindrical shape. Calculation of ion beam force and torque was performed for a self-similar model of plasma plume expansion using the hypothesis of ion fully diffused reflection from a surface. A mathematical model describing plane motions of the cylindrical space debris under the influence of gravity gradient torque and the ion flux was constructed. It was shown that motion of the space debris around its center of mass has a significant effect on its removal time. Phase portraits, describing the motion of the space debris relative to its center of mass, were constructed. Comparison of the descent times in different motion modes was carried out. The results can be used to create new effective systems of large space debris removal.

show abstract

“…Yu developed a net simulation method based on trivial truss element, which reduced the computational complexity [ 13 ]. The relationship between the ejection parameter and deployment quality has been well studied [ 14 – 16 ], and ejection-parameter optimization has been preliminary mentioned [ 15 , 17 ]. The net opening time, maximum area, effective acting time, and effective acting distance were introduced as evaluation indexes for space nets in the literature, which were used to evaluate the deployment performance of the space net.…”

Section: Introductionmentioning

confidence: 99%

Study on launch scheme of space-net capturing system

et al. 2017

View full text Add to dashboard Cite

With the continuous progress in active debris-removal technology, scientists are increasingly concerned about the concept of space-net capturing system. The space-net capturing system is a long-range-launch flexible capture system, which has great potential to capture non-cooperative targets such as inactive satellites and upper stages. In this work, the launch scheme is studied by experiment and simulation, including two-step ejection and multi-point-traction analyses. The numerical model of the tether/net is based on finite element method and is verified by full-scale ground experiment. The results of the ground experiment and numerical simulation show that the two-step ejection and six-point traction scheme of the space-net system is superior to the traditional one-step ejection and four-point traction launch scheme.

show abstract

Circular Orbit Target Capture Using Space Tether-Net System

Cited by 24 publications

References 24 publications

Neural-network-based terminal sliding-mode control for thrust regulation of a tethered space-tug

Neural-network-based terminal sliding-mode control for thrust regulation of a tethered space-tug

Attitude Motion of Cylindrical Space Debris during Its Removal by Ion Beam

Study on launch scheme of space-net capturing system

Contact Info

Product

Resources

About