Space Systems Flexibility Provided by On-Orbit Servicing: Part 2

Lamassoure, Elisabeth; Saleh, Joseph H.; Hastings, Daniel E.

doi:10.2514/2.3845

“…12 This is a current area of intense research interest. 13,14,15 • Evolvability: Ability of the system to serve as the basis of new systems (or at least generations of the current system) to meet new needs and/or attain new capability levels. An area of intense interest.…”

Section: Discussionmentioning

confidence: 99%

“…orbital transfer vehicles) the sole purpose of which is to enhance the flexibility of other systems. 13,14 The use of tradespace and financial methods to build flexibility into systems is shown in Figure 9.…”

Section: Emerging Capabilitiesmentioning

confidence: 99%

A framework for understanding uncertainty and its mitigation and exploitation in complex systems

McManus¹,

Hastings²

2006

IEEE Eng. Manag. Rev.

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Abstract.A framework to aid in the understanding of uncertainties and techniques for mitigating and even taking positive advantage of them is presented. The framework is an attempt to clarify the wide range of uncertainties that affect complex systems, the risks (and opportunities) they create, the strategies system architects can use to mitigate (or take advantage) of them, and the resulting system attributes. Current and developing methods for dealing with uncertainties are projected onto the framework to understand their relative roles and interactions.

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“…12 This is a current area of intense research interest. 13,14,15 • Evolvability: Ability of the system to serve as the basis of new systems (or at least generations of the current system) to meet new needs and/or attain new capability levels. An area of intense interest.…”

Section: Discussionmentioning

confidence: 99%

“…orbital transfer vehicles) the sole purpose of which is to enhance the flexibility of other systems. 13,14 The use of tradespace and financial methods to build flexibility into systems is shown in Figure 9.…”

Section: Emerging Capabilitiesmentioning

confidence: 99%

3.4.1 A Framework for Understanding Uncertainty and its Mitigation and Exploitation in Complex Systems

McManus

¹

,

Hastings

²

2005

INCOSE International Symp

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Abstract.A framework to aid in the understanding of uncertainties and techniques for mitigating and even taking positive advantage of them is presented. The framework is an attempt to clarify the wide range of uncertainties that affect complex systems, the risks (and opportunities) they create, the strategies system architects can use to mitigate (or take advantage) of them, and the resulting system attributes. Current and developing methods for dealing with uncertainties are projected onto the framework to understand their relative roles and interactions.

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“…Many studies [27]- [29] have indicated the potential value of repairing damaged spacecraft in flight from the perspective of cost-effectiveness. Saleh et al [30], [31] proposed a model including a risk and uncertainty analysis. For these reasons, the National Aeronautics and Space Administration (NASA) recognized the importance of protecting the space resources of robots in orbital maintenance operations as early as the 1980s [32], [33].…”

Section: Introductionmentioning

confidence: 99%

Development of a Novel End-Effector for an On-Orbit Robotic Refueling Mission

Liu

¹

,

Tong

²

,

Liu

³

et al. 2020

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At present, the space station on-orbit service is still rapidly developing, and on-orbit refueling operation has not been fully realized. During the process of an on-orbit robotic refueling mission, the pipe disconnectors are artificially docked, and the problems of low efficiency and a long operation period are common. From the perspective of bionics, this paper studies the kinematics of the upper limbs in the manual docking process of the pipeline quick disconnector and analyses the redundant degrees of freedom in the manual docking process. In this paper, without changing the original structure of the quick disconnector, a five-degrees-of-freedom multifunctional end-effector imitating the human hand with a compact structure and a light weight was created, which can realize the automatic docking of the quick disconnector in the pipeline. The quick disconnector docking in the refueling system is simplified from the original manual, twohanded operation to a single-end-effector operation with a single mechanical arm. Compared with a dual-arm robot, a single-arm robot has the advantages of internal force sealing, a stable structure, a higher docking accuracy and a lower cost. The common rigid body contact collision dynamics problem is thus studied. The contact dynamics model between the ''quick disconnector and the robot end-effector'' is established by the equivalent spring damping model method. The experimental prototype was developed according to the structure of the end-effector to complete the construction of the refueling robot experimental platform. A simulation and experiment were conducted to verify the advantages and effectiveness of the structure. INDEX TERMS On-orbit servicing, robotic refueling mission, end-effector, imitating human hand, collision dynamics analysis.

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Space Systems Flexibility Provided by On-Orbit Servicing: Part 2

Cited by 28 publications

References 6 publications

A framework for understanding uncertainty and its mitigation and exploitation in complex systems

A framework for understanding uncertainty and its mitigation and exploitation in complex systems

3.4.1 A Framework for Understanding Uncertainty and its Mitigation and Exploitation in Complex Systems

Development of a Novel End-Effector for an On-Orbit Robotic Refueling Mission

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