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Electrostatic forming film reflecting surface form design method based on mechanical and electrical field coupling

An electrostatic forming and design method technology, which is applied in computing, electrical digital data processing, special data processing applications, etc., can solve the problems of low film forming precision, only focusing on film shape and surface accuracy, and poor film surface stress uniformity.

Active Publication Date: 2014-10-29
XIDIAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of low film forming precision and poor uniformity of film surface stress in the existing electrostatic forming film reflective surface design, which only pays attention to the film surface accuracy and ignores the coupling relationship between the electrostatic field and the film structure displacement field , proposed a method of shape design of reflective surface of electrostatically formed film based on electromechanical field coupling, in order to realize comprehensive design of shape and precise shape control of reflective surface of electrostatically formed film

Method used

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  • Electrostatic forming film reflecting surface form design method based on mechanical and electrical field coupling
  • Electrostatic forming film reflecting surface form design method based on mechanical and electrical field coupling
  • Electrostatic forming film reflecting surface form design method based on mechanical and electrical field coupling

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Embodiment Construction

[0047] Such as figure 1 As shown, a method for designing the shape of the reflective surface of an electrostatically formed film based on electromechanical field coupling is characterized in that it at least includes the following steps:

[0048] Step 101: According to the structural parameters of the reflective surface of the electrostatically formed film and the performance requirements of the reflective surface, determine the initial geometry and arrangement of the high-voltage control electrode;

[0049] Step 102: According to the diameter D of the reflective surface of the electrostatically formed film reflective surface a and focal length f a , establish the displacement field analysis model of the membrane structure, and load the boundary constraints;

[0050] Step 103: Apply uniform prestress σ to the structural finite element model of the film reflective surface d ;

[0051] Step 104: Taking the geometry of the film reflector and the high-voltage control electrode...

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Abstract

The invention belongs to the technical field of radar antennas and particularly relates to an electrostatic forming film reflecting surface form design method based on mechanical and electrical field coupling. According to the method, the stress uniformity and the precision of a film are considered equally important, a model based on an electrostatic field-film structure displacement field coupling is built, and the optimum control voltage is obtained through an optimization strategy to achieve comprehensive form design and forming control of the reflecting surface of the electrostatic forming film. The method not only can consider the performance requirements for both the surface precision and the stress uniformity of the film but also overcomes the defect structural field and electrostatic field coupling is neglected according to a traditional method.

Description

technical field [0001] The invention belongs to the technical field of radar antennas, and specifically relates to a method for designing the shape of the reflective surface of an electrostatically formed film based on electromechanical field coupling, which can be used for comprehensive design of the shape of the reflective surface of an electrostatically formed film, and can also be used for electrode deformation and different electrode layouts Quantitative and detailed analysis and evaluation of the influence of form and other factors on the shape of the film reflective surface, as well as the forming control of the ground environment test of the electrostatically formed film reflective surface. Background technique [0002] The deployable antenna with electrostatically formed film reflective surface is an active reflective surface that forms an electrostatic field between the distributed high-voltage electrode and the grounded metallized film, and controls the surface sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 刘超段宝岩杜敬利张逸群杨东武杨癸庚张树新高峰
Owner XIDIAN UNIV
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