Structural Design and Analysis of All-moving Type Smart Fin using Single-crystal Piezoelectric Actuator
단결정 압전재료 작동기를 이용한 강체 회전형태의 지능형 조종익 구조 설계 및 해석

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dc.description학위논문 (석사)-- 서울대학교 대학원 : 기계항공공학부, 2017. 2. 신상준.-
dc.description.abstractResearches regarding piezoelectric actuators has been conducted to substitute for the hydraulic actuators by the piezoelectric material because of light weight and accurate actuation. In this thesis, an actuating mechanism of the smart fin using single-crystal piezoelectric actuator is developed and structural analysis regarding the resulting pitch rotation angle is conducted. A straight unimorph actuator is embedded along the spanwise direction inside the hollow inner space of the airfoil. A hinge which is constrained about its axial rotation is located at 1/4 of chord, and thus the smart fin rotates in its rigid pitch direction. Structural behavior of the smart fin was predicted by using commercial software program ANSYS, regarding the resulting actuation of the trailing edge under specific voltage input in the air. In addition, the flutter analysis was conducted on the structure to confirm the stability condition under Mach number 0.5 flight.-
dc.description.tableofcontentsChapter 1 Introduction 1
1.1 Background and Motivation 1
1.2 Objectives and Thesis Overview 2

Chapter 2 Theoretical Background 11
2.1 Stress Form of the Piezoelectric Matrix 11
2.2 Simple Blocked Force Beam Model: Asymmetric Actuation of Single Actuator 13
2.3 Analysis theories used in ANSYS Structural 14
2.4 Analysis Theories used in ANSYS Fluent 15

Chapter 3 Description of the Design Candidates for Smart Fin Structures 22
3.1 Design Candidate 1 22
3.2 Design Candidate 2 23
3.3 Design Candidate 3 23

Chapter 4 Numerical and Experimental Results 42
4.1 Piezoelectric actuator 42
4.2 Structural analysis of the present smart fins 50
4.2.1 Design Candidate 1 50
4.2.1 Design Candidate 2 51
4.2.3 Design Candidate 3 52
4.3 Prediction of Rotation Pitch Angle of the Smart Fin with Aerodynamic Loads 62

Chapter 5 Conclusion and Future Work 71
5.1 Conclusion 71
5.2 Future Work 73

Reference 74

국문초록 77
dc.format.extent2371940 bytes-
dc.publisher서울대학교 대학원-
dc.subjectSmart Fin-
dc.subjectPiezoelectri Material-
dc.subjectSmart Structure Theory-
dc.subjectANSYS Structural analysis-
dc.subjectANSYS FLUENT-
dc.titleStructural Design and Analysis of All-moving Type Smart Fin using Single-crystal Piezoelectric Actuator-
dc.title.alternative단결정 압전재료 작동기를 이용한 강체 회전형태의 지능형 조종익 구조 설계 및 해석-
dc.contributor.affiliation공과대학 기계항공공학부-
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Theses (Master's Degree_기계항공공학부)
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