Modeling and testing of a mechanical counterpressure BioSuit system
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2007.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2007
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| Online Access: | http://hdl.handle.net/1721.1/39489 |
| _version_ | 1826211564078759936 |
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| author | Judnick, Daniel Clemente Louis |
| author2 | Jeffrey A. Hoffman. |
| author_facet | Jeffrey A. Hoffman. Judnick, Daniel Clemente Louis |
| author_sort | Judnick, Daniel Clemente Louis |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2007. |
| first_indexed | 2024-09-23T15:07:59Z |
| format | Thesis |
| id | mit-1721.1/39489 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T15:07:59Z |
| publishDate | 2007 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/394892019-04-10T09:12:51Z Modeling and testing of a mechanical counterpressure BioSuit system Judnick, Daniel Clemente Louis Jeffrey A. Hoffman. Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics. Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics. Aeronautics and Astronautics. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2007. This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Includes bibliographical references (p. 189-190). The President's Vision for Space Exploration calls for a returned human presence on the Moon, followed by human missions to Mars. The astronauts on these missions will require a more robust and flexible spacesuit than currently exists to conduct exploration and science operations as well as maintain a base on planetary surfaces. The BioSuit system is a modular spacesuit concept based on the theory of mechanical counterpressure (MCP). Considerable experimental work has been conducted in the field of MCP, but there has been no analysis of the hypothetical best level of uniformity of pressure production for this type of spacesuit design. Therefore, computer modeling has been undertaken to verify the feasibility of such a design, which is based on not only providing the required pressure on the skin, but also limiting the variation of pressure production around a cross-section of the body. Given the data sets available, which exclusively consist of legs under normal atmospheric pressure, not mechanical counterpressure, the modeling work indicates that a MCP-based design can meet these requirements. (cont.) This thesis advances the BioSuit design by laying out the system level requirements, and also by setting requirements for the fabric and closure mechanism in order to design a working prototype. As part of this design process, the team has further developed the elastic bindings concept, which previously was designed to produce pressure only on the calf. Now the team has extended the design to protect the entire leg in an underpressurized environment. Based on blood pressure, skin temperature, heart rate, and qualitative comfort ratings, the bands have proven successful at protecting the leg (with the exception of some minor edema on the knee) at the desired underpressure (-225 mm Hg) over a full hour. A simple knee brace which filled the concavities of the knee was also tested, and proved successful in preventing edema in one trial. While the design is not yet capable of operational testing due to limitations in mobility, it is a valuable stepping point towards developing a full BioSuit system. by Daniel Clemente Louis Judnick. S.M. 2007-11-15T21:35:34Z 2007-11-15T21:35:34Z 2007 2007 Thesis http://hdl.handle.net/1721.1/39489 176872136 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 190 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Aeronautics and Astronautics. Judnick, Daniel Clemente Louis Modeling and testing of a mechanical counterpressure BioSuit system |
| title | Modeling and testing of a mechanical counterpressure BioSuit system |
| title_full | Modeling and testing of a mechanical counterpressure BioSuit system |
| title_fullStr | Modeling and testing of a mechanical counterpressure BioSuit system |
| title_full_unstemmed | Modeling and testing of a mechanical counterpressure BioSuit system |
| title_short | Modeling and testing of a mechanical counterpressure BioSuit system |
| title_sort | modeling and testing of a mechanical counterpressure biosuit system |
| topic | Aeronautics and Astronautics. |
| url | http://hdl.handle.net/1721.1/39489 |
| work_keys_str_mv | AT judnickdanielclementelouis modelingandtestingofamechanicalcounterpressurebiosuitsystem |