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A study of the feasibility and applicability of shape controlled space based inflatable membrane structures

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Author
Whittinghill, Craig M.
Date
2000-09
Advisor
Agrawal, Brij
Wadsworth, Donald
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Abstract
Inflatable structures used for space applications offer mass, volume, and cost savings to spacecraft programs, allowing larger space structures to be built. For certain space applications, there are advantages to using large structures. For example, antennas achieve higher gains when they are increased in size. Higher gains equate to higher data throughputs. Therefore, inflatable structures offer improvements in performance to certain types of spacecraft components. Environmental factors induce surface errors on large inflatable structures, though. This degrades performance, especially for inflatable antennas. To reduce this degradation, active and passive control systems can be used to sense errors and control the shape of the antenna. One method of applying an active and passive control system is by using piezoelectric films that are either attached to or are part of the inflatable structure. The research performed for this thesis explored the theoretical performance of a large inflatable space-based antenna via spreadsheet analysis and the physical performance of a piezoelectric film via laboratory experimentation. For the laboratory experiment, the film was attached to a drum and varying internal pressures and voltages were applied. Also, in order to validate the experimental results, an analytical model was created using MSC/PATRAN and MSC/NASTRAN software
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https://hdl.handle.net/10945/7798
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    Numerical Simulation of Inflatable Membrane Structures 

    Kolar, R.; Whittinghill, C.; Agrawal, B.N. (2001);
    Inflatable structures are effective in space applications, as they are weight, volume and cost competitive For certain space applications, higher gains are obtained for the antennas by increasing their size. Higher gains ...
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    High-Altitude Payload Retrieval (HAPR) Apparatus and Methods of Use 

    Yakimenko, Oleg (The United States of America, as represented by the Secretary of the Navy, Washington, DC (US), 2022-05-17);
    The disclosure provides an HAPR apparatus comprising an inflatable frame configured to generate canopy extension based on surrounding atmospheric pressure. The inflatable frame has a first collapse load limit less than the ...
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    Variations on autocorrelation matching and the sift localization algorithm 

    De Kooter, Peter M. (Monterey, California. Naval Postgraduate School, 1997-03);
    As part of the existing acoustic transient localization program, a feasibility study was performed to apply existing algorithms to signals at higher carrier frequencies. The coherent matching, autocorrelation matching and ...
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