Tactile cueing for Vortex Ring State avoidance: 16 Tabellen
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Köln
DLR
2013
|
| Ausgabe: | Als Ms. gedr. |
| Schriftenreihe: | Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt
2013,19 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVII, 213 S. Ill., graph. Darst. |
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| 245 | 1 | 0 | |a Tactile cueing for Vortex Ring State avoidance |b 16 Tabellen |c Max Abildgaard |
| 250 | |a Als Ms. gedr. | ||
| 264 | 1 | |a Köln |b DLR |c 2013 | |
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| 490 | 1 | |a Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt |v 2013,19 | |
| 502 | |a Zugl.: Braunschweig, Univ., Diss., 2011 | ||
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Datensatz im Suchindex
| _version_ | 1804151520900415488 |
|---|---|
| adam_text | CONTENTS
1. INTRODUCTION 1
2. STATE OF THE ART 11
2.1. TACTILE CUEING 11
2.1.1. BODY MOUNTED TACTILE CUEING SYSTEMS 12
2.1.2. TACTILE CUEING IN FIXED WING AVIATION 12
2.1.3. TACTILE CUEING IN HELICOPTERS 13
2.1.4. TACTILE CUE MODELING . 15
2.1.5. TACTILE CUEING IN OTHER FIELDS 15
2.2. SIDESTICKS, ACTIVE SIDESTICKS, AND ACTIVE STICKS 16
2.3. VORTEX RING STATE MODELING 17
2.4. VRS AVOIDANCE ON HELICOPTERS 22
2.5. PROBLEM STATEMENT 22
2.6. GOALS AND TASKS 23
3. VRS AND HOW TO CUE AGAINST IT 25
3.1. ON THE NATURE OF THE VRS 25
3.2. PROM MOMENTUM THEORY TO UNDERSTANDING VRS 27
3.2.1. CLASSICAL MOMENTUM THEORY 28
3.2.2. EXTENDING THE MOMENTUM THEORY 30
3.2.3. EXTENDING EVEN FURTHER: THE E -MODEL 35
3.2.4. SUMMARY OF THE VRS PREDICTION MODEL 38
3.3. PURPOSE, VALIDITY AND USABILITY OF THE E VRS MODEL 38
3.3.1. PURPOSE 39
3.3.2. VALIDITY 39
3.3.3. USABILITY 40
3.3.4. CHOICE OF VRS PREDICTION FOR THE CUEING FUNCTION . . 42
3.3.5. VRS MODELING SUMMARY 42
III
HTTP://D-NB.INFO/1043661522
CONTENTS
3.4. LAYOUT OF A VRS AVOIDANCE CUEING FUNCTION 43
3.4.1. PILOT INTERVIEW 43
3.4.2. CUES FOR THE CYCLIC STICK 44
3.4.3. CUES FOR THE COLLECTIVE STICK 46
3.4.4. COMBINED CUEING SCHEME 46
3.4.5. VISUAL CUES 48
3.5. CHAPTER SUMMARY 49
4. MODELING THE CUEING LOOP 53
4.1. MODEL FORMULATION OF THE STICK SYSTEM IN PHASE 2 55
4.1.1. THE ACTIVE STICKS IN THE FHS 55
4.1.2. THE REGULAR FORCE ELEMENTS 56
4.1.3. THE IRREGULAR FORCE ELEMENTS 57
4.1.4. CHARACTERISTICS OF THE SOFTSTOP 58
4.1.5. STICK SYSTEM MODEL ORDER 60
4.1.6. PARAMETERS INFLUENCING THE STICK SYSTEM MODEL ... 60
4.2. MODEL FORMULATION 66
4.2.1. DYNAMIC BEHAVIOR 66
4.2.2. STEADY STATE BEHAVIOR 67
4.2.3. COMBINING DYNAMIC AND STEADY STATE STICK MODEL . . 68
4.2.4. ACCOUNTING FOR THE INFLUENCE OF EXTERNAL PARAMETERS . 68
4.3. IDENTIFICATION OF STICK MODEL PARAMETERS 69
4.3.1. TEST AIM 69
4.3.2. TEST METHOD 69
4.3.3. TEST PROCEDURE 70
4.3.4. PARAMETER RANGE AND LINEARIZATION POINT 71
4.3.5. CHOICE OF TEST POINTS 71
4.3.6. PARAMETER IDENTIFICATION METHOD 72
4.4. RESULTS OF STICK SYSTEM IDENTIFICATION 73
4.4.1. INTERPRETATION OF THE IDENTIFIED PARAMETERS 74
4.4.2. VALIDATION OF MODEL AT LINEARIZATION POINT 75
4.4.3. VALIDATION FOR DIFFERENT STICK PARAMETER SETTINGS ... 76
4.4.4. DISCUSSION OF THE EXPERIMENT 79
4.5. MODELING FLIGHT CONTROL SYSTEM AND ACTUATORS 81
4.5.1. FCS CONTROL MODES 81
IV
CONTENTS
4.5.2. LINEAR MODEL OF THE FCS 82
4.6. AIRFRAME 84
4.6.1. ANALYTICAL MODEL OF THE AIRFRAME 84
4.6.2. GATHERING FLIGHT DATA FOR DIFFERENT FORWARD SPEEDS . . 86
4.7. AN ANALYTICAL MODEL AT POINT 1 87
4.7.1. SYSTEM IDENTIFICATION AT POINT 1 102
4.7.2. SYSTEM IDENTIFICATION AT POINT 2 107
4.7.3. CONCLUDING ON THE V
Z
MODEL 109
4.8. CUEING NOISE FILTER 110
4.9. COMBINING FILTER, STICK, FCS, AND U
2
-MODEL 110
4.9.1. VALIDATION 112
4.9.2. SYSTEM PROPERTIES AT LINEARIZATION POINT 114
4.10. CHAPTER SUMMARY 115
5. ADDING A
V
Z
CONTROLLER 117
5.1. SPECIAL ASPECTS OF A SOFTSTOP IN A CONTROL LOOP 117
5.2. SUMMARY OF THE CLOSED LOOP S PARTS IN PHASE 2 118
5.3. DEFINITION OF CONTROLLER PROBLEM 118
5.3.1. PLANT CHARACTERISTICS 119
5.3.2. REQUIREMENTS FOR THE CONTROLLER 120
5.4. CHOICE OF CONTROLLER METHOD 121
5.5. CONTROLLER STRUCTURE 122
5.6. FINDING CONTROLLER GAINS 124
5.7. CALCULATING SYSTEM STABILITY 125
5.7.1. ADDING CONTROLLER SELF REFERENCING . . . 126
5.7.2. ADDING FEEDBACK GAINS FOR K
VZ
AND K
AZ
127
5.7.3. STABILITY ASPECTS OF SOFTSTOP STEEPNESS 128
5.7.4. STABILITY ASPECTS OF STICK DAMPING 129
5.7.5. STABILITY ASPECTS OF HAND FORCE 130
5.7.6. STABILITY ASPECTS OF THE INPUT FILTER 131
5.7.7. STABILITY ASPECTS OF AIRSPEED 132
5.7.8. STABILITY WHILE VARYING ALL MODEL PARAMETERS 133
5.7.9. SUMMARY OF SYSTEM STABILITY 135
5.8. CHAPTER SUMMARY 135
CONTENTS
6. HAPTIC ASPECTS 137
6.1. HAPTIC ASPECTS OF FEEDBACK GAINS AND STICK PARAMETERS . . . 137
6.2. PILOT ACCEPTANCE IN THE LIGHT OF DIVIDED AUTHORITY 139
7. PREPARING THE CUEING FUNCTION FOR REAL FLIGHT TESTS 143
7.1. CUEING BEHAVIOR DURING OVERRIDE 143
7.1.1. REQUIREMENTS 144
7.1.2. SOLUTION 144
7.1.3. RESULTS 144
7.1.4. REGARDING AUTOROTATION 144
7.2. CHOICE OF SOFTSTOP STEEPNESS 145
7.3. VZ-LIMIT DURING ACCELERATION AND DECELERATION 148
7.3.1. THEORY 148
7.3.2. IMPLICATIONS 149
7.3.3. RATE OF DESCENT AS FUNCTION OF FORWARD AIRSPEED . . . 152
7.3.4. RATE OF DESCENT DURING ACCELERATION AND DECELERATION 152
7.3.5. RATE OF DESCENT AS FUNCTION OF PITCH ANGLE 153
7.3.6. COMBINING THE ACCEL-/DECELLERATION-FACTORS 153
7.4. RATE OF DESCENT OVERSHOOT CANCELLATION 153
7.4.1. PROBLEM ANALYSIS 155
7.4.2. SOLUTION 155
7.5. CHAPTER SUMMARY 156
8. SIMULATOR TESTS 159
8.1. OBJECTIVES 159
8.2. CHOICE OF MANEUVERS 159
8.3. DECELERATED APPROACH 160
8.4. VERTICAL REPOSITIONING 161
8.5. DOWNHILL TASK 163
8.6. CHAPTER SUMMARY 170
9. FLIGHT TESTS 171
9.1. BASIC FUNCTION TEST AND FAMILIARIZATION 171
9.1.1. OBJECTIVES 171
9.1.2. TASK DEFINITION 171
VI
CONTENTS
9.1.3. RESULTS 173
9.2. COLLECTIVE SWEEP 173
9.2.1. OBJECTIVES 173
9.2.2. RESULTS 173
9.3. DECELERATED APPROACH 174
9.3.1. OBJECTIVES 175
9.3.2. TASK DEFINITION 175
9.3.3. RESULTS 175
9.4. CHAPTER SUMMARY 180
10. SUMMARY 183
11.OUTLOOK 187
A. TABLES, MATRICES, AND MODELS 189
B. STICK UNITS AND BASIC SETTINGS 191
C. DEALING WITH REAL SENSORS 193
C.L. AIR DENSITY 193
C.2. MASS 195
C.3. RATE OF DESCENT 196
C.4. FORWARD AIRSPEED 198
C.5. ESTIMATING WIND SPEED IN FLIGHT 202
C.5.1. MANEUVER 202
C.5.2. DISPLAY 204
VII
|
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| spelling | Abildgaard, Max Verfasser aut Tactile cueing for Vortex Ring State avoidance 16 Tabellen Max Abildgaard Als Ms. gedr. Köln DLR 2013 XVII, 213 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt 2013,19 Zugl.: Braunschweig, Univ., Diss., 2011 Flugregelung (DE-588)4328094-8 gnd rswk-swf Hubschrauber (DE-588)4025993-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Hubschrauber (DE-588)4025993-6 s Flugregelung (DE-588)4328094-8 s DE-604 Deutsches Zentrum für Luft- und Raumfahrt Forschungsbericht 2013,19 (DE-604)BV011758990 2013,19 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026857515&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Abildgaard, Max Tactile cueing for Vortex Ring State avoidance 16 Tabellen Flugregelung (DE-588)4328094-8 gnd Hubschrauber (DE-588)4025993-6 gnd |
| subject_GND | (DE-588)4328094-8 (DE-588)4025993-6 (DE-588)4113937-9 |
| title | Tactile cueing for Vortex Ring State avoidance 16 Tabellen |
| title_auth | Tactile cueing for Vortex Ring State avoidance 16 Tabellen |
| title_exact_search | Tactile cueing for Vortex Ring State avoidance 16 Tabellen |
| title_full | Tactile cueing for Vortex Ring State avoidance 16 Tabellen Max Abildgaard |
| title_fullStr | Tactile cueing for Vortex Ring State avoidance 16 Tabellen Max Abildgaard |
| title_full_unstemmed | Tactile cueing for Vortex Ring State avoidance 16 Tabellen Max Abildgaard |
| title_short | Tactile cueing for Vortex Ring State avoidance |
| title_sort | tactile cueing for vortex ring state avoidance 16 tabellen |
| title_sub | 16 Tabellen |
| topic | Flugregelung (DE-588)4328094-8 gnd Hubschrauber (DE-588)4025993-6 gnd |
| topic_facet | Flugregelung Hubschrauber Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026857515&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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