Comparison of Extravehicular Mobility Unit (Emu) Suited and Unsuited Isolated Joint Strength Measurements PDF Download
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722307462
Category :
Languages : en
Pages : 62
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Book Description
In this study the strength of subjects suited in extravehicular mobility units (EMU's) - or Space Shuttle suits - was compared to the strength of unsuited subjects. The authors devised a systematic and complete data set that characterizes isolated joint torques for all major joints of EMU-suited subjects. Six joint motions were included in the data set. The joint conditions of six subjects were compared to increase our understanding of the strength capabilities of suited subjects. Data were gathered on suited and unsuited subjects. Suited subjects wore Class 3 or Class 1 suits, with and without thermal micrometeoroid garments (TMG's). Suited and unsuited conditions for each joint motion were compared. From this the authors found, for example, that shoulder abduction suited conditions differ from each other and from the unsuited condition. A second-order polynomial regression model was also provided. This model, which allows the prediction of suited strength when given unsuited strength information, relates the torques of unsuited conditions to the torques of all suited conditions. Data obtained will enable computer modeling of EMU strength, conversion from unsuited to suited data, and isolated joint strength comparisons between suited and unsuited conditions at any measured angle. From these data mission planners and human factors engineers may gain a better understanding of crew posture, and mobility and strength capabilities. This study also may help suit designers optimize suit strength, and provide a foundation for EMU strength modeling systems. Maida, James C. and Demel, Kenneth J. and Morgan, David A. and Wilmington, Robert P. and Pandya, Abhilash K. Johnson Space Center...
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722307462
Category :
Languages : en
Pages : 62
Get Book Here
Book Description
In this study the strength of subjects suited in extravehicular mobility units (EMU's) - or Space Shuttle suits - was compared to the strength of unsuited subjects. The authors devised a systematic and complete data set that characterizes isolated joint torques for all major joints of EMU-suited subjects. Six joint motions were included in the data set. The joint conditions of six subjects were compared to increase our understanding of the strength capabilities of suited subjects. Data were gathered on suited and unsuited subjects. Suited subjects wore Class 3 or Class 1 suits, with and without thermal micrometeoroid garments (TMG's). Suited and unsuited conditions for each joint motion were compared. From this the authors found, for example, that shoulder abduction suited conditions differ from each other and from the unsuited condition. A second-order polynomial regression model was also provided. This model, which allows the prediction of suited strength when given unsuited strength information, relates the torques of unsuited conditions to the torques of all suited conditions. Data obtained will enable computer modeling of EMU strength, conversion from unsuited to suited data, and isolated joint strength comparisons between suited and unsuited conditions at any measured angle. From these data mission planners and human factors engineers may gain a better understanding of crew posture, and mobility and strength capabilities. This study also may help suit designers optimize suit strength, and provide a foundation for EMU strength modeling systems. Maida, James C. and Demel, Kenneth J. and Morgan, David A. and Wilmington, Robert P. and Pandya, Abhilash K. Johnson Space Center...
Author: David A. Morgan
Publisher:
ISBN:
Category : Manned maneuvering units (Space flight)
Languages : en
Pages : 46
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 62
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 524
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Book Description
Author: Kenneth S. Thomas
Publisher: Springer Science & Business Media
ISBN: 0387739793
Category : Science
Languages : en
Pages : 417
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Book Description
* the most accurate and comprehensive work on U.S. spacesuits ever published. *A unique insight into the development of US spacesuits through to the present day. * Presents in context the authors’ unique collection of 172 black and white photographs. * Explains why spacesuits are a last refuge for astronauts for survival. * Details many technically and historically interesting developments, but which never achieved fruition.
Author: Michael R. Barratt
Publisher: Springer Science & Business Media
ISBN: 0387681647
Category : Medical
Languages : en
Pages : 592
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Book Description
Over the years, a large body of knowledge has developed regarding the ways in which space flight affects the health of the personnel involved. Now, for the first time, this clinical knowledge on how to diagnose and treat conditions that either develop during a mission or because of a mission has been compiled by Drs. Michael Barratt and Sam L. Pool of the NASA/Johnson Space Center. Complete with detailed information on the physiological and psychological affects of space flight as well as how to diagnose and treat everything from dental concerns to decompression to dermatological problems encountered, this text is a must have for all those associated with aerospace medicine.
Author: Jancy C. McPhee
Publisher: U. S. National Aeronautics & Space Administration
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 396
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Outer space
Languages : en
Pages : 32
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Book Description
Author: Mary Connors
Publisher: CreateSpace
ISBN: 9781478241683
Category :
Languages : en
Pages : 432
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Book Description
Since the earliest days of spaceflight, substantial concern has been expressed regarding the physical needs of astronauts, including any biological damage that might result from exposure to radiation or from reduction in gravitational forces.
Author: David J. Shayler
Publisher: Springer
ISBN: 1493928279
Category : Technology & Engineering
Languages : en
Pages : 438
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Book Description
The highly successful Hubble Space Telescope was meant to change our view and understanding of the universe. Within weeks of its launch in 1990, however, the space community was shocked to find out that the primary mirror of the telescope was flawed. It was only the skills of scientists and engineers on the ground and the daring talents of astronauts sent to service the telescope in December 1993 that saved the mission. For over two decades NASA had developed the capabilities to service a payload in orbit. This involved numerous studies and the creation of a ground-based infrastructure to support the challenging missions. Unique tools and EVA hardware supported the skills developed in crew training that then enabled astronauts to complete a demanding series of spacewalks. Drawing upon first hand interviews with those closely involved in the project over thirty years ago this story explains the development of the servicing mission concept and the hurdles that had to be overcome to not only launch the telescope but also to mount the first servicing mission – a mission that restored the telescope to full working order three years after its launch, saved the reputation of NASA, and truly opened a new age in understanding of our place in space. This is not just a tale of space age technology, astronauts and astronomy. It is also a story of an audacious scientific vision, and the human ingenuity and determination to overcome all obstacles to make it possible. Hubble Space Telescope: From Concept to Success is a story of an international partnership, dedicated teamwork and a perfect blend of human and robotic space operations that will inspire people of all ages. The subsequent servicing missions that enabled the telescope to continue its scientific program beyond its 25th year in orbit are described in a companion volume Enhancing Hubble’s Vision: Servicing a National Treasure.
