Forschungsbericht; 2016-52 (Koln, 2016). - ОГЛАВЛЕНИЕ / CONTENTS
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ОбложкаGramuller B. On pressure-actuated cellular structures: Diss. ... Dr.-Ing. / Deutsches Zentrum für Luft- und Raumfahrt, Institut für Faserverbundleichtbau und Adaptronik, Braunschweig. - Köln: DLR, 2016. - 199 p.: ill. - Res. also Germ. - Bibliogr.: p.190-199. - (Forschungsbericht; 2016-52). - ISSN 1434-8454
Шифр: (Pr1120/2016-52) 02

 

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Оглавление / Contents
 
Abstract ........................................................ I
Kurzfassung .................................................... II
Preface ....................................................... III
List of Symbols ............................................... VII
List of Acronyms ............................................... XI
1  Introduction ................................................. 1
   1.1  Problem definition and approach to solution ............. 1
   1.2  Motivation tor this work on morphing structures ......... 2
   1.3  Morphing structures and actuation ....................... 8
   1.4  Objectives and outline ................................. 25
2  Computation of truss geometry and characterization .......... 29
   2.1  Structural model ....................................... 30
   2.2  Optimization model ..................................... 44
   2.3  Optimization algorithm ................................. 51
   2.4  Shape optimization ..................................... 51
   2.5  Simulation and characterization ........................ 58
   2.6  Shape optimization and characterization of the
        variable-chamber wing PACS ............................. 63
3  Cross-sectional design ...................................... 73
   3.1  Flexure hinge geometry ................................. 74
   3.2  Cell side geometry ..................................... 76
   3.3  Connection structure ................................... 77
   3.4  Transition geometry for the connection of structural
        sub-elements ........................................... 78
4  Sealing and pressurization .................................. 81
   4.1  Demands on the cell closure for PACS ................... 81
   4.2  Collection of cell closure concepts .................... 83
   4.3  Concept selection ...................................... 96
   4.4  Design sensitivities and characteristics ............... 97
   4.5  Sealing and fluid flow ................................ 103
5  Manufacturing and assembly ................................. 107
   5.1  Manufacturing processes for cell body structure ....... 107
   5.2  Manufacturing processes for cell closure membrane ..... 114
   5.3  Assembly of PACS specimens ............................ 117
6  Evaluation and progressive improvement of design methods ... 121
   6.1  Experimental and simulative investigation ............. 122
   6.2  Evaluation and progressive improvement ................ 140
   6.3  Critical evaluation of the holistic design process .... 145
7  Application of the generic design process .................. 149
   7.1  Toolchain for the design of PACS ...................... 149
   7.2  Use cases ............................................. 153
8  Conclusion and Outlook ..................................... 157
   8.1  Results and achievements .............................. 157
   8.2  Open issues and prospect .............................. 161
Appendix ...................................................... 163
List of Tables ................................................ 183
List of Figures ............................................... 185
Bibliography .................................................. 190


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