Atjaunināt sīkdatņu piekrišanu

E-grāmata: Optimizing Small Multi-Rotor Unmanned Aircraft: A Practical Design Guide [Taylor & Francis e-book]

(University of Southampton, United Kingdom)
  • Formāts: 120 pages
  • Izdošanas datums: 04-Oct-2018
  • Izdevniecība: CRC Press
  • ISBN-13: 9780429428364
Citas grāmatas par šo tēmu:
  • Taylor & Francis e-book
  • Cena: 88,92 €*
  • * this price gives unlimited concurrent access for unlimited time
  • Standarta cena: 127,04 €
  • Ietaupiet 30%
Optimizing Small Multi-Rotor Unmanned Aircraft: A Practical Design GuidePalielināt
  • Formāts: 120 pages
  • Izdošanas datums: 04-Oct-2018
  • Izdevniecība: CRC Press
  • ISBN-13: 9780429428364
Citas grāmatas par šo tēmu:
Taylor & Francis e-booksMore info about Taylor & Francis e-books
Rokasgrāmatas mājas lapa: https://www.taylorfrancis.com/books/9780429428364

This design guide was written to capture the author’s practical experience of designing, building and testing multi-rotor drone systems over the past decade. The lack of one single source of useful information meant that the past 10 years has been a steep learning curve, a lot of self-tuition and many trial and error tests. Lessons learnt the hard way are not always the best way to learn. This book will be useful for the amateur drone pilot who wants to build their own system from first principles, as well as the academic researcher investigating novel design concepts and future drone applications.

List of tables
xi
List of figures
xiii
List of abbreviations
xvii
General assumptions xix
Design constraints xxi
Preface xxiii
Acknowledgements xxv
1 Introduction
1(4)
2 Lithium Polymer battery (power supply)
5(6)
2.1 Safety considerations
9(1)
2.2 Lithium Polymer discharge characteristics
9(2)
3 Electronic Speed Controller (ESC)
11(6)
3.1 Timing
13(1)
3.2 Cut-off voltage
14(1)
3.3 Switching frequency
15(2)
4 The Brushless DC (BLDC) motor (outrunner)
17(16)
4.1 BLDC motor construction and theory
20(1)
4.2 Equivalent brushed DC motor equations
21(5)
4.3 Comparing theoretical and empirical data
26(7)
4.3.1 Analysis of motor torque equations
27(1)
4.3.2 Analysis of motor speed equations
28(1)
4.3.3 Test measurements
29(1)
4.3.4 Online design tools
30(3)
5 The propeller (rotor)
33(32)
5.1 Propeller or rotor?
35(1)
5.2 Propeller variables
35(4)
5.3 Propeller geometry
39(2)
5.4 Simple momentum theory
41(2)
5.5 Non-dimensional rotor (propeller) coefficients
43(1)
5.6 Figure of Merit (FM)
44(2)
5.7 Propeller efficiency (ηp)
46(2)
5.8 Co-axial and overlapping rotor designs
48(5)
5.8.1 Different upper and lower rotors
53(1)
5.9 Reynolds number, Re
53(4)
5.10 Airfoil geometry
57(2)
5.11 Airfoil theory -- Blade Element Theory (BET)
59(1)
5.12 Online airfoil resources
60(5)
6 The system solution
65(14)
6.1 EVlechE UAS challenge -- a worked multi-rotor example
67(4)
6.2 Measuring the propulsive efficiency
71(3)
6.3 Forward flight
74(2)
6.4 Dihedral and cant angles
76(2)
6.5 Active thrust vectoring
78(1)
7 Conclusion
79(4)
7.1 Economic and societal impact
79(1)
7.2 Future directions, opportunities and threats
80(3)
Appendices
Appendix A1 Li-Po batteries ready reckoner (6S)
83(1)
Appendix A2 A range of 6S Li-Po batteries with high specific energy (Wh/kg) (June 2018)
84(3)
Appendix B Guidance on the safe use, handling, storage and disposal of Lithium Polymer batteries
87(6)
Appendix C T-Motor BLDC motor selection tool
93(2)
Appendix D Overall system selection spreadsheet
95(2)
Appendix E Examples of multi-rotor systems built at the ASL
97(16)
Appendix F Drone radio frequency legal requirements in the UK
113(2)
Appendix G Example Pixhawk flight controller wiring diagram and mission planner set-up (PID tuning)
115(2)
References 117(2)
Index 119
Dr Stephen D Prior is Reader in Unmanned Air Vehicles within the Faculty of Engineering and the Environment at the University of Southampton. He gained a BEng in Mechanical Engineering degree in 1987 and PhD in Robotics from Middlesex University, London in 1993. He is a Chartered Mechanical Engineer, Corporate Member of the IMechE and Fellow of the Higher Education Academy. His research interests are in the areas of Mechatronics, Autonomous Unmanned Systems, Robotics and Design Engineering. He was Project Lead for the MoD Grand Challenge i-Spy team in 2008 and was the Team Leader for Team HALO, winner of the DARPA UAVForge Competition 2012. He has been an editor for the International Journal of Micro Air Vehicles since 2010.
Permanent link: https://www.kriso.lv/db/9780429428364_pe.html
Keywords: