Application of Variable Structure Control in the Gyroscopic System

碩士 === 中原大學 === 機械工程研究所 === 82 === In this thesis, VSC is applied in the transverse vibration control of the gyroscopic system. In VSC, a set of continuous subsystems are directed by an adequate switching logic to change the structure, and...

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Main Authors: Liao, Cheng Chan, 廖承展
Other Authors: Fung, Rong Fong
Format: Others
Language:zh-TW
Published: 1994
Online Access:http://ndltd.ncl.edu.tw/handle/26464520750055826523
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spelling ndltd-TW-082CYCU04890292016-02-10T04:08:56Z http://ndltd.ncl.edu.tw/handle/26464520750055826523 Application of Variable Structure Control in the Gyroscopic System 變結構控制在陀螺系統的應用 Liao, Cheng Chan 廖承展 碩士 中原大學 機械工程研究所 82 In this thesis, VSC is applied in the transverse vibration control of the gyroscopic system. In VSC, a set of continuous subsystems are directed by an adequate switching logic to change the structure, and put the state trajectories sliding to desired point along the switching plane. The most disting- uished feature of VSC is its robustness. It is insensitive to parametric uncertainty and external disturbance. This method is attractive in the control of nonlinear system. In this thesis, controllers designed by VSC are used to suppress the transverse vibration of the gyroscopic system according to IMSC. Gyroscopic system, such as: (1.) rotating disk, applied in steam and gas turbines, grinding wheels, circular saws, and computer disk memories. (2.) axially moving string, applied in textile, computer and tape recorder industries. Transverse vibration reduces the performance in these application. So the transverse vibration control is a important task. In this thesis, Hamilton's principle is applied to derive the governing equations of the transverse vibrations spinning disk system with non-constant angular velocity and the nonlinear transverse vibrations axially moving string. Then, Galerkin method is employed to discretize these governing equations into ordinary differential equations. Finally, VSC is used to design the modal control force for each controlled mode. The controlled mode vibration of gyroscopic system with perturbation, external disturbances, and nonlinear term is supressed. Fung, Rong Fong 馮榮豐 1994 學位論文 ; thesis 62 zh-TW
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description 碩士 === 中原大學 === 機械工程研究所 === 82 === In this thesis, VSC is applied in the transverse vibration control of the gyroscopic system. In VSC, a set of continuous subsystems are directed by an adequate switching logic to change the structure, and put the state trajectories sliding to desired point along the switching plane. The most disting- uished feature of VSC is its robustness. It is insensitive to parametric uncertainty and external disturbance. This method is attractive in the control of nonlinear system. In this thesis, controllers designed by VSC are used to suppress the transverse vibration of the gyroscopic system according to IMSC. Gyroscopic system, such as: (1.) rotating disk, applied in steam and gas turbines, grinding wheels, circular saws, and computer disk memories. (2.) axially moving string, applied in textile, computer and tape recorder industries. Transverse vibration reduces the performance in these application. So the transverse vibration control is a important task. In this thesis, Hamilton's principle is applied to derive the governing equations of the transverse vibrations spinning disk system with non-constant angular velocity and the nonlinear transverse vibrations axially moving string. Then, Galerkin method is employed to discretize these governing equations into ordinary differential equations. Finally, VSC is used to design the modal control force for each controlled mode. The controlled mode vibration of gyroscopic system with perturbation, external disturbances, and nonlinear term is supressed.
author2 Fung, Rong Fong
author_facet Fung, Rong Fong
Liao, Cheng Chan
廖承展
author Liao, Cheng Chan
廖承展
spellingShingle Liao, Cheng Chan
廖承展
Application of Variable Structure Control in the Gyroscopic System
author_sort Liao, Cheng Chan
title Application of Variable Structure Control in the Gyroscopic System
title_short Application of Variable Structure Control in the Gyroscopic System
title_full Application of Variable Structure Control in the Gyroscopic System
title_fullStr Application of Variable Structure Control in the Gyroscopic System
title_full_unstemmed Application of Variable Structure Control in the Gyroscopic System
title_sort application of variable structure control in the gyroscopic system
publishDate 1994
url http://ndltd.ncl.edu.tw/handle/26464520750055826523
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