Investigation of Boundary Conditions for Flexible Multibody Spacecraft Dynamics

Maclean, J. Ross; Huynh, An; Quiocho, Leslie J.

doi:10.1115/detc2007-35511

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…Equation (15) is identical in form to the expressions given in both Quiocho et al 8 and MacLean et al, 9 with the exception of the single body versus multibody notation.…”

Section: Iib Dynamicsmentioning

confidence: 51%

Mode Selection Techniques in Variable Mass Flexible Body Modeling

Quiocho

Ghosh

Frenkel

et al. 2010

AIAA Modeling and Simulation Technologies Conference

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“…Equation (15) is identical in form to the expressions given in both Quiocho et al 8 and MacLean et al, 9 with the exception of the single body versus multibody notation.…”

Section: Iib Dynamicsmentioning

confidence: 51%

Mode Selection Techniques in Variable Mass Flexible Body Modeling

Quiocho

Ghosh

Frenkel

et al. 2010

AIAA Modeling and Simulation Technologies Conference

Self Cite

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Evolution of Flexible Multibody Dynamics for Simulation Applications Supporting Human Spaceflight

Huynh¹,

Brain²,

Maclean³

et al. 2016

Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control

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During the course of transition from the Space Shuttle and International Space Station programs to the Orion and Journey to Mars exploration programs, a generic flexible multibody dynamics formulation and associated software implementation has evolved to meet an ever changing set of requirements at the NASA Johnson Space Center (JSC). Challenging problems related to large transitional topologies and robotic free-flyer vehicle capture/release, contact dynamics, and exploration missions concept evaluation through simulation (e.g., asteroid surface operations) have driven this continued development. Coupled with this need is the requirement to oftentimes support human spaceflight operations in real-time. Moreover, it has been desirable to allow even more rapid prototyping of on-orbit manipulator and spacecraft systems, to support less complex infrastructure software for massively integrated simulations, to yield further computational efficiencies, and to take advantage of recent advances and availability of multi-core computing platforms. Since engineering analysis, procedures development, and crew familiarity/training for human spaceflight are fundamental to JSC’s charter, there is also a strong desire to share and reuse models in both the non-real-time and real-time domains, with the goal of retaining as much multibody dynamics fidelity as possible. Three specific enhancements are reviewed here: (1) linked list organization to address large transitional topologies, (2) body level model order reduction, and (3) parallel formulation/implementation. This paper provides a detailed overview of these primary updates to JSC’s flexible multibody dynamics algorithms as well as a comparison of numerical results to previous formulations and associated software.

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Advancement of Contact Dynamics Modeling for Human Spaceflight Simulation Applications

Brain¹,

Kovel²,

Maclean³

et al. 2017

Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control

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Pong is a new software tool developed at the NASA Johnson Space Center that advances interference-based geometric contact dynamics based on 3D graphics models. The Pong software consists of three parts: a set of scripts to extract geometric data from 3D graphics models, a contact dynamics engine that provides collision detection and force calculations based on the extracted geometric data, and a set of scripts for visualizing the dynamics response with the 3D graphics models. The contact dynamics engine can be linked with an external multibody dynamics engine to provide an integrated multibody contact dynamics simulation. This paper provides a detailed overview of Pong including the overall approach, modeling capabilities, which encompasses force generation to computational performance, and example applications.

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Investigation of Boundary Conditions for Flexible Multibody Spacecraft Dynamics

Abstract: In support of both the Space Shuttle and International Space Station programs, a set of generic multibody dynamics algorithms integrated within the

Cited by 3 publications

References 5 publications

Mode Selection Techniques in Variable Mass Flexible Body Modeling

Mode Selection Techniques in Variable Mass Flexible Body Modeling

Evolution of Flexible Multibody Dynamics for Simulation Applications Supporting Human Spaceflight

Advancement of Contact Dynamics Modeling for Human Spaceflight Simulation Applications

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