Rotorcraft Aeromechanics

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Cambridge University Press, Apr 29, 2013 - Mathematics - 927 pages
A rotorcraft is a class of aircraft that uses large-diameter rotating wings to accomplish efficient vertical take-off and landing. The class encompasses helicopters of numerous configurations (single main rotor and tail rotor, tandem rotors, coaxial rotors), tilting proprotor aircraft, compound helicopters, and many other innovative configuration concepts. Aeromechanics includes much of what the rotorcraft engineer needs: performance, loads, vibration, stability, flight dynamics, and noise. These topics cover many of the key performance attributes and the often-encountered problems in rotorcraft designs. This comprehensive book presents, in depth, what engineers need to know about modeling rotorcraft aeromechanics. The focus is on analysis, and calculated results are presented to illustrate analysis characteristics and rotor behavior. The first third of the book is an introduction to rotorcraft aerodynamics, blade motion, and performance. The remainder of the book covers advanced topics in rotary wing aerodynamics and dynamics.
 

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Update to the aeromechanics classic, Helicopter Theory. Dr. Johnson is a pre-eminent expert in rotorcraft aeromechanics and the book provides excellent treatment of all of the information necessary to design and analyze rotors and propellers for both traditional rotorcraft and modern eVTOL and UAS systems. Comprehensive collection of references in each chapter enable the reader to go easily go to even greater depth on advanced topics by finding the relevant research articles. 

Contents

Notation
27
Hover
39
Vertical Flight
92
Forward Flight Wake
123
Forward Flight
152
Performance
243
Design
271
Wings and Wakes
303
Computational Aerodynamics
462
Noise
493
Mathematics of Rotating Systems
545
Blade Motion
582
Beam Theory
671
Dynamics
710
Flap Motion
749
Stability
788

Unsteady Aerodynamics
366
Actuator Disk
414
Stall
442
Flight Dynamics
844
Comprehensive Analysis
915
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About the author (2013)

Wayne Johnson worked at the U.S. Army Aeromechanics Laboratory from 1970 to 1981 at the NASA Ames Research Center. He was with NASA from 1981 to 1986, including a couple of years as Assistant Branch Chief. Dr Johnson founded Johnson Aeronautics in 1986, under which he developed rotorcraft software until 1998. Since 1998, he has worked at the Aeromechanics Branch of NASA Ames Research Center. Dr Johnson is author of the comprehensive analysis CAMRADII and the rotorcraft design code NDARC; and of the book Helicopter Theory (1990). He is a Fellow of the American Institute of Aeronautics and Astronautics (AIAA) and the American Helicopter Society (AHS) and has received a U.S. Army Commander's Award for Civilian Service, NASA Medals for Exceptional Engineering Achievement and Exceptional Technology Achievement, the AHS Grover E. Bell Award, the Ames H. Julian Allen Award, the AIAA Pendray Aerospace Literature Award and the 2010 AHS Alexander Nikolsky Honorary Lectureship.