Conceptual Design of a Device to Measure Hand Swelling in a Micro-Gravity Environment
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Home > Reference > Research and information: general > Research methods: general > Conceptual Design of a Device to Measure Hand Swelling in a Micro-Gravity Environment
Conceptual Design of a Device to Measure Hand Swelling in a Micro-Gravity Environment

Conceptual Design of a Device to Measure Hand Swelling in a Micro-Gravity Environment


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About the Book

In the design of pressurized suits for use by astronauts in space, proper fit is an important consideration. One particularly difficult aspect of the suit design is the design of the gloves. If the gloves of the suit do not fit properly, the grip strength of the astronaut can be decreased by as much as fifty percent. These gloves are designed using an iterative process and can cost over 1.5 million dollars. Glove design is further complicated by the way the body behaves in a micro-gravity environment. In a micro-gravity setting, fluid from the lower body tends to move into the upper body. Some of this fluid collects in the hands and causes the hands to swell. Therefore, a pair of gloves that fit well on earth may not fit well when they are used in space. The conceptual design process for a device which can measure the swelling that occurs in the hands in a micro-gravity environment is described. This process involves developing a specifications list and function structure for the device and generating solution variants for each of the sub functions. The solution variants are then filtered, with the variants that violate any of the specifications being discarded. After acceptable solution variants are obtained, they are combined to form design concepts. These design concepts are evaluated against a set of criteria and the design concepts are ranked in order of preference. Through this process, the two most plausible design concepts were an ultrasonic imaging technique and a laser mapping technique. Both of these methods create a three dimensional model of the hand, from which the amount of swelling can be determined. In order to determine which of the two solutions will actually work best, a further analysis will need to be performed. Hysinger, Christopher L. Unspecified Center NASA-CR-195509, NAS 1.26:195509 NASW-4435...


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Product Details
  • ISBN-13: 9781725588103
  • Publisher: Createspace Independent Publishing Platform
  • Publisher Imprint: Createspace Independent Publishing Platform
  • Height: 279 mm
  • No of Pages: 36
  • Spine Width: 2 mm
  • Width: 216 mm
  • ISBN-10: 1725588102
  • Publisher Date: 16 Aug 2018
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 109 gr


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