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Gap conductive rubber impact on the chassis panel efficiency and the development of software platforms

Author: HuKaiBo
Tutor: DuanBaoYan；MaBoYuan
School: Xi'an University of Electronic Science and Technology
Course: Mechanical and Electronic Engineering
Keywords: Electromagnetic shielding Conductive Rubber Transfer impedance method Method of Moments Electromagnetic Compatibility Analysis Platform
CLC: TN03
Type: Master's thesis
Year: 2011
Downloads: 60
Quote: 2
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Abstract

Electronic equipment there is always a lot of contact with the gap characteristics , and the use of conductive rubber contacts the gap caused by the suppression of the electromagnetic leakage . Is a mixture of conductive rubber , electrical performance parameters of the material can not be obtained directly , and with the pressures and operating frequency varies . In addition, the conductive rubber in contact with the mounting surface discontinuities are difficult to describe , which have increased the difficulty of its simulation analysis . Conductive rubber for engineering electronic equipment installed shielding effectiveness simulation analysis of the problem can not be based on established a conductive rubber transfer impedance equivalent model . First, by analyzing the effect of traditional electronic device screen solution, elaborated on the special structure of the conductive rubber and analysis of its real difficulties ; through its particularity and the contact gap comparative analysis identified two problems similarities. Demonstrated equivalent method for conductive rubber feasibility of further equivalent modeling theory for conductive rubber, established based on the transfer impedance of the conductive rubber equivalent model . In order to make the installation of electronic equipment screen conductive rubber emulate true prediction is possible, with the equivalent method of moments Combination . Describes the use of the method of moments when calculating electronic equipment screen effect equivalent conductive rubber equivalent model parameter selection principle, making contact with the gap and conductive rubber containing electronic equipment shielding characteristics numerical analysis possible . For a typical installation of conductive rubber chassis simulation analysis and experimental testing , the results illustrate the equivalent modeling method for Moment Method chassis panel efficiency feasibility and correctness . Developed an electronic device screen -efficient computing software platform. The transfer impedance equivalent method based on integration platform designed Electromagnetic Compatibility Analysis platform and modeling platform , structural analysis and optimization platform to platform data exchange interfaces for the physical parameters of the model and simplify the transfer of information . Platform to reflect changes in the electromagnetic field displacement field , thermal field effects , in considering the case of multi-field coupling structures for electronic equipment integrated analysis and optimization . Finally, based on the platform The simulation and experimental comparison of test results demonstrate the applicability and accuracy of the platform .

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