지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 발행연도
- 2015
- 저작권
- 서울대학교 논문은 저작권에 의해 보호받습니다.
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- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
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초록· 키워드
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In order to substitute a conventional fin operated by hydraulic actuator, structural analysis of three smart fins embedded with single crystal composite piezoelectric actuators was attempted in this thesis. Structural analysis on piezoelectric actuators employed on the present smart fins using ANSYS showed good correlation with the in-house MATLAB simulation based on classical laminated plate theory, and experimental result. Structural behaviors were analyzed regarding the resulting deflections for each smart fin under specific voltage input. In addition, computational fluid dynamics analysis was conducted on the structures so as to derive the final deflection under aerodynamic load of Mach number 0.5 flight. The present designs and analysis will be extend-ed to future applications such as the control surface component in the wing structures of the unmanned air vehicle and commercial aircraft.
목차
List of Figures …………………………………………………………… ivList of Tables …………………………………………………………… viiiNomenclature ……………………………………………………………… ixChapter 1 Introduction ………………………………………………… 11.1 Background of the thesis …………………………………… 11.2 Summary of the preceding researches ………………… 41.3 Purpose and range of Scope of the thesis ……………… 6Chapter 2 Theoretical Background ……………………………… 172.1 Classical Laminated Plate Theory ……………………… 172.2 Open and Closed Circuit condition of PiezoelectricBodies …………………………………………………………… 202.3 Analysis theories used in ANSYS…………………………………………………………………… 222.4 Analysis theories used in ANSYS Fluent …………… 232.5 Analysis theories used in MSC. NASTRAN ………… 262.6 Analysis theories used in ZAERO ……………………… 29Chapter 3 Description of Present Smart Fin Structures … 343.1 Design Candidate 1 …………………………………………… 343.2 Design Candidate 2 …………………………………………… 353.3 Design Candidate 3 …………………………………………… 363.4 Design Candidate 4 …………………………………………… 37Chapter 4 Numerical and Experimental Results …………… 564.1 Piezoelectric actuator ……………………………………… 564.2 Structural analysis of the present smart fins ……… 594.2.1 Design Candidate 1 ……………………………… 604.2.1 Design Candidate 2 ……………………………… 604.2.3 Design Candidate 3 ……………………………… 614.2.4 Design Candidate 4 ……………………………… 624.3 Flutter analysis of the present smart fins ………… 64Chapter 5 Conclusion ………………………………………………… 905.1 Conclusion ……………………………………………………… 905.2 Future Works …………………………………………………… 935.2.1 Design Refinement ………………………………… 935.2.2 Hysteresis Analysis ……………………………… 945.2.3 Contact Analysis …………………………………… 955.2.4 Flutter Analysis …………………………………… 955.2.5 Comparison with experimental result ……… 96Reference ………………………………………………………………… 97국문초록 ………………………………………………………………… 102
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