Deployment Simulation Methods for Ultra-Lightweight Inflatable Structures PDF Download
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Author: John T. Wang
Publisher:
ISBN:
Category : Expandable space structures
Languages : en
Pages : 28
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Book Description
Author: John T. Wang
Publisher:
ISBN:
Category : Expandable space structures
Languages : en
Pages : 28
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Book Description
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781724116864
Category :
Languages : en
Pages : 26
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Book Description
Two dynamic inflation simulation methods are employed for modeling the deployment of folded thin-membrane tubes. The simulations are necessary because ground tests include gravity effects and may poorly represent deployment in space. The two simulation methods are referred to as the Control Volume (CV) method and the Arbitrary Lagrangian Eulerian (ALE) method. They are available in the LS-DYNA nonlinear dynamic finite element code. Both methods are suitable for modeling the interactions between the inflation gas and the thin-membrane tube structures. The CV method only considers the pressure induced by the inflation gas in the simulation, while the ALE method models the actual flow of the inflation gas. Thus, the transient fluid properties at any location within the tube can be predicted by the ALE method. Deployment simulations of three packaged tube models; namely coiled, Z-folded, and telescopically-folded configurations, are performed. Results predicted by both methods for the telescopically-folded configuration are correlated and computational efficiency issues are discussed. Wang, John T. and Johnson, Arthur R. Langley Research Center NASA/TM-2003-212410, L-18294, NAS 1.15:212410, ARL-TR-2973...
Author: Zhenhan Yao
Publisher: 清华大学出版社有限公司
ISBN: 9787302093411
Category : Engineering design
Languages : en
Pages : 712
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Book Description
Author: Richard S. Pappa
Publisher:
ISBN:
Category : Air-supported structures
Languages : en
Pages : 26
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Book Description
This paper reports recently completed structural dynamics experimental activities with new ultra-lightweight and inflatable space structures (a.k.a., "Gossamer" spacecraft) at NASA Langley Research Center, NASA Marshall Space Flight Center, and NASA Goddard Space Flight Center. Nine aspects of this work are covered: 1) inflated, rigidized tubes, 2) active control experiments, 3) photogrammetry, 4) laser vibrometry, 5) modal tests of inflatable structures, 6) in-vacuum modal tests, 7) tensioned membranes, 8) deployment tests, and 9) flight experiment support. Structural dynamics will play a major role in the design and eventually in-space deployment and performance of Grossamer spacecraft. Experimental research and development such as this is required to validate new analysis methods.
Author: C. H. Jenkins
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 368
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Book Description
The pace of progress in gossamer technology has been strong since the publication of Gossamer Spacecraft: Membrane and Inflatable Structures Technology for Space Applications in 2001. Solar sails are an obvious and public evidence of this trend. But there have been many other advances as well in structures, materials, testing, and systems engineering. Recent Advances in Gossamer Spacecraft focuses on many of these, either as gossamer technology that was not sufficiently represented in the previous volume, or that has had significant growth and activity in the intervening years. The most accurate and up-to-date information has been assembled, reviewed, and presented by an outstanding group of experts.
Author:
Publisher:
ISBN:
Category : Expandable space structures
Languages : en
Pages : 26
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Book Description
Author: Xiaolong Li
Publisher: World Scientific
ISBN: 9814740144
Category : Technology & Engineering
Languages : en
Pages : 1172
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Book Description
This book consists of one hundred and seventeen selected papers presented at the 2015 International Conference on Electronics, Electrical Engineering and Information Science (EEEIS2015), which was held in Guangzhou, China, during August 07-09, 2015. EEEIS2015 provided an excellent international exchange platform for researchers to share their knowledge and results and to explore new areas of research and development.Global researchers and practitioners will find coverage of topics involving Electronics Engineering, Electrical Engineering, Computer Science, Technology for Road Traffic, Mechanical Engineering, Materials Science and Engineering Management. Experts in these fields contributed to the collection of research results and development activities.This book will be a valuable reference for researchers working in the field of Electronics, Electrical Engineering and Information Science.
Author: Xiaoting Rui
Publisher: Springer Nature
ISBN: 9819980488
Category :
Languages : en
Pages : 4383
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Book Description
Author: Ali Rahim
Publisher: Academy Press
ISBN:
Category : Architecture
Languages : en
Pages : 142
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Book Description
This publication addresses the most far-reaching and innovative developments in digital practice to have taken place in the last five years. It demonstrates how experimental architects are being challenged at a new rigorous intellectual level and are going beyond the strictures of the conceptual into the realm of the material. As digital techniques are starting to be successfully assimilated and translated into design methodology, they are also, for the first time being seen through to architectural realisation. This is illustrated here at the scale of space, material programme and construction. The title includes the work of high-profile philosophers, architects and engineers, such as Manuel Delanda who wrote 1000 Years of Non-Linear History; Greg Lynn; Foreign Office Architects; and Cecil Balmond of Ove Arup, who has worked with Daniel Libeskind on his proposal for the Spiral Building, London, as well as with Philip Johnson and Studio Baad on the Chavasse Park Project featured here. Cintemorary Techniques in Archtiecture takes architectural publishing's treatment of the digital to a new level, looking at its potential in a realised form as well as a creative medium. Johan Bettum Scott Cohen Foreign Office Architects Kolatan MacDonald Studio Greg Lynn Objectile OCEAN North Ali Rahim Servo
Author: Hong Hua Tan
Publisher: Trans Tech Publications Ltd
ISBN: 3038133884
Category : Technology & Engineering
Languages : en
Pages : 2856
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Book Description
Selected, peer reviewed papers from the 2010 International Conference On Applied Mechanics And Mechanical Engineering (ICAMME 2010), September 8 ~ 9, 2010, Changsha, China
