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Reaserach on Electrostatically Figured Deployable Membrane Antenna

Author: TongZheFu
Tutor: LiTuanJie
School: Xi'an University of Electronic Science and Technology
Course: Mechanical Design and Theory
Keywords: Film reflective surface Electrostatic forming Deployable Antenna Form-finding Initiative shaped surface control
CLC: V443.4
Type: Master's thesis
Year: 2011
Downloads: 44
Quote: 0
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Abstract

Film reflective surface appeared in recent years , a new type of reflective surfaces, to achieve the purpose of the electromagnetic wave reflected by a layer of metal plating on the polyimide film material reflecting medium . Due to the application of thin film reflecting surface is expected to solve the contradiction between the carrying space launch system and delivery quality constraints and the large diameter reflector antenna needs its forming method and form surface control study to become a hot topic today . This paper first introduces the film reflective surface electrostatic stretch forming method , after electrostatic forming the film reflective surfaces shaped surface deployable antenna for the object , respectively, to its active form-finding analysis and orbit thermal deformation control study . The specific content and the results are as follows : 1 , to establish a the static stretch forming the film reflective surfaces mathematical model , simplified mechanical model of static stretch forming , the electrostatic forming mechanism is verified by simulation analysis . 2 , based on nonlinear finite element method , the form-finding analysis of cable-membrane structure , given the form-finding analysis processes analysis to determine the initial shape of the antenna structure by a numerical example , verify that the form-finding analysis the effectiveness of the method . 3 , the calculation of the electrostatic to expand the temperature field and thermal deformation of the antenna in orbit , forming a thin film reflective surface and surface to control the antenna active shape optimization model is proposed based on the optimization methods of advance and retreat method and nonlinear finite element method . The numerical examples show that the algorithm is fast and effective verify the electrostatic forming a film reflecting surface deployable antenna shaped active surface control feasibility .

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