Publications
Detailed Information
PI Controller Design and Aeroservoelastic Analysis of a Smart Fin Including Piezoelectric Actuator for Performance Improvement : 성능 개선을 위한 압전재료 구동 지능형 조종익의 PI 제어기 설계 및 서보공력탄성학 해석
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 신상준 | - |
dc.contributor.author | 강유진 | - |
dc.date.accessioned | 2017-07-14T03:42:03Z | - |
dc.date.available | 2017-07-14T03:42:03Z | - |
dc.date.issued | 2016-08 | - |
dc.identifier.other | 000000136047 | - |
dc.identifier.uri | https://hdl.handle.net/10371/123903 | - |
dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 기계항공공학부, 2016. 8. 신상준. | - |
dc.description.abstract | For a lighter aerial vehicle, an actuator made of smart material such as piezoelectric material can be used to operate a control surface. The piezoelectric material in the actuator can adjust the pitch angle of the control surface by being transformed due to voltage difference, and the control surface of such type is called the smart fin. In the present paper, starting from the fundamental structural analysis, the aeroelastic and aeroservoelastic stability, and structural response simulations of the smart fin control system are performed by integration of MSC.NASTRAN, ZAERO and MATLAB/Simulink. In the process, PI controller is designed to ensure the flight stability and to maintain the pitch angles of the smart fin under a specific flight conditions. And then, the complete closed-loop control system of the smart fin is constructed and analyzed in both ZAERO and MATLAB/Simulink. The controllers develop the flight and control performances by increasing the flutter boundary and decreasing settling time of the step responses of the smart fin. | - |
dc.description.tableofcontents | I. Introduction 1
1.1 Backgrounds and Motivations 1 1.1.1 Backgrounds of Aeroservoelasticity 1 1.1.2 Backgrounds of Smart Structures 3 1.1.3 Motivations of the Present Thesis 5 1.2 Objectives of the Present Thesis 6 II. Methodology 17 2.1 Descriptions of the Subject of Study 17 2.2 Structural Analysis of Smart Fin 25 2.3 Aeroelastic Analysis of Smart Fin 25 2.4 Aeroservoelastic Modeling of Smart Fin Control System 27 2.5 Theoretical Process of the Aeroservoelastic Analysis by State-Space Approach 27 III. Results 36 3.1 Structural Analysis of Smart Fin 36 3.1.1 Static Structural Analysis 36 3.1.2 Structural Modal Analysis 36 3.2 Aeroelastic Stability Analysis of Smart Fin 42 3.2.1 Aerodynamics of the Smart Fin Using ZAERO 42 3.2.2 Flutter Analysis of the Smart Fin Using ZAERO 42 3.3 Open-Loop Aeroservoelastic Analysis of Smart Fin 48 3.3.1 Open-Loop Aeroservoelastic Analysis in the Frequency Domain 49 3.3.2 Open-Loop Aeroservoelastic Analysis in the Time Domain 53 3.4 Closed-Loop Aeroservoelastic Analysis of Smart Fin 57 3.4.1 Closed-Loop System Built by ZAERO 57 3.4.2 Closed-Loop System Built by MATLAB/Simulink 58 IV. Conclusions 66 V. Future Works 67 Reference 68 국문 초록 71 | - |
dc.format | application/pdf | - |
dc.format.extent | 2585468 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | Smart Fin | - |
dc.subject | Piezoelectric Material | - |
dc.subject | Rational Function Approximation | - |
dc.subject | Aeroelasticity | - |
dc.subject | Flutter | - |
dc.subject | Aeroservoelasticity | - |
dc.subject | PI Controller | - |
dc.subject | MATALB/Simulink | - |
dc.subject | ZAERO | - |
dc.subject | Modal Analysis | - |
dc.subject.ddc | 621 | - |
dc.title | PI Controller Design and Aeroservoelastic Analysis of a Smart Fin Including Piezoelectric Actuator for Performance Improvement | - |
dc.title.alternative | 성능 개선을 위한 압전재료 구동 지능형 조종익의 PI 제어기 설계 및 서보공력탄성학 해석 | - |
dc.type | Thesis | - |
dc.contributor.AlternativeAuthor | Yoojin Kang | - |
dc.description.degree | Master | - |
dc.citation.pages | V, 67 | - |
dc.contributor.affiliation | 공과대학 기계항공공학부 | - |
dc.date.awarded | 2016-08 | - |
- Appears in Collections:
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.