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Development and Ground Testing of Direct Measuring Skin Friction Gages for High Enthalpy Supersonic Flight Tests
| Content Provider | Semantic Scholar |
|---|---|
| Author | Smith, Theodore Brooke |
| Copyright Year | 2002 |
| Abstract | .................................................................................................................................................. ii ACKNOWLEDGEMENTS ........................................................................................................................ iv TABLE OF CONTENTS ............................................................................................................................. v TABLE OF FIGURES...............................................................................................................................viii TABLE OF TABLES..................................................................................................................................xii NOMENCLATURE...................................................................................................................................xiii ROMAN SYMBOLS.............................................................................................................................xiii GREEK SYMBOLS.............................................................................................................................. xiv INTRODUCTION ........................................................................................................................................ 1 1.1 Importance of Measuring Skin Friction........................................................................................... 1 1.2 Specific Motivation: The Hyper-X ................................................................................................... 3 1.3 Measurement Methods ...................................................................................................................... 4 1.3.1 Indirect Methods........................................................................................................................... 5 1.3.2 Direct Methods ............................................................................................................................. 9 1.4 Scope of the Investigation................................................................................................................ 11 DESIGN OVERVIEW AND CONSTRAINTS ........................................................................................ 14 2.1 General Design Attributes............................................................................................................... 14 2.2 Floating Head Design Attributes and Concerns ............................................................................ 17 2.3 Strain Gage Theory and Practice ................................................................................................... 20 2.3.1 Strain Gage Fundamentals......................................................................................................... 20 2.3.2 Strain Gage Types and Selection................................................................................................ 24 2.3.3 Strain Gage Thermal Effects ...................................................................................................... 25 TEST APPARATUS AND INSTRUMENTATION................................................................................. 28 3.1 Electronics ........................................................................................................................................ 28 3.2 Calibration........................................................................................................................................ 29 3.2.1 Static Calibration ....................................................................................................................... 29 3.2.2 Dynamic Calibration .................................................................................................................. 30 3.3 Vibration Tests ................................................................................................................................. 31 3.4 Virginia Tech 9-inch x 9-inch Supersonic Wind Tunnel .............................................................. 33 GAGE DESIGN ONERBCC TEST DESIGN........................................................................................ 35 4.1 Gage Design ...................................................................................................................................... 35 |
| File Format | PDF HTM / HTML |
| DOI | 10.2514/6.2002-3134 |
| Alternate Webpage(s) | https://theses.lib.vt.edu/theses/available/etd-10242001-125622/unrestricted/completedissert.pdf |
| Alternate Webpage(s) | https://doi.org/10.2514/6.2002-3134 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
