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A Study Of Large-Scale Deployable Antenna Control Problem

Posted on:2000-12-11Degree:MasterType:Thesis
Country:ChinaCandidate:C X LiuFull Text:PDF
GTID:2168359972450044Subject:Mechanical Manufacturing and Automation
Abstract/Summary:PDF Full Text Request
Deployable antenna is one of the major developing trends of modem space technique. Because there is a far-ranging applied foreground about it, many nation contest to developing it. Due to the large size ~. lightweight and great flexible characters of it , there are many difficulties in dynamical analysis 晘. structure design and control about it. Therefore, wide attention is brought. This paper presents a novel method to design a control system that applied to end- velocity control of deployable antenna by some exploring research First, the dynamics equation of the simple model is established by using the flexible multi-body analyzes method together with combining finite element and Lagrange method. The resolution expression of coefficient matrix about commonly plane girder dynamical equation is also given out by using symbolic tool. Also, the dynamical response is done by Newmark. A NN (Neural Network) system dynamical model is set up by making use of NN technology. Depending on this foundation, by integrating NN~. forecast control and optimize technologies, a intelligent control system that applied to the end velocity control in the antenna deploying process is schemed out. Computer simulation shows that the control system not only meet the requirement, but also behave very good in veracity~ agility and adaptability.
Keywords/Search Tags:Deployable Antenna, Flexible Multi-body Neural Network, System Identification, Intelligent Control
PDF Full Text Request
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