Steady Flight Differential Equations of Motion for a Flexible Helicopter Blade with Chordwise Mass Unbalance
Author: Peter J. Arcidiacono
Publisher:
Published: 1969
Total Pages: 114
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Peter J. Arcidiacono
Publisher:
Published: 1969
Total Pages: 114
ISBN-13:
DOWNLOAD EBOOKAuthor: Aviv Rosen
Publisher:
Published: 1978
Total Pages: 120
ISBN-13:
DOWNLOAD EBOOKAuthor: Wayne Johnson
Publisher: Cambridge University Press
Published: 2013-04-29
Total Pages: 949
ISBN-13: 1107028078
DOWNLOAD EBOOKA 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 covers much of what the rotorcraft engineer needs: performance, loads, vibration, stability, flight dynamics, and noise. These topics include 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 modelling rotorcraft aeromechanics. The focus is on analysis, and calculated results are presented to illustrate analysis characteristics and rotor behaviour. 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.
Author: Wayne Johnson
Publisher: Courier Corporation
Published: 1994-01-01
Total Pages: 1126
ISBN-13: 9780486682303
DOWNLOAD EBOOKThe history of the helicopter may be traced back to the Chinese flying top (c. 400 BC) and to the work of Leonardo da Vinci, who sketched designs for a vertical flight machine utilizing a screw-type propeller. In the late 19th-century, Thomas Edison experimented with helicopter models, realizing that no such machine would be able to fly until the development of a sufficiently lightweight engine. When the internal combustion gasoline engine came on the scene around 1900, the stage was set for the real development of helicopter technology. While this text provides a concise history of helicopter development, its true purpose is to provide the engineering analysis required to design a highly successful rotorcraft. Toward that end the book offers thorough, comprehensive coverage of the theory of helicopter flight: the elements of vertical flight, forward flight, performance, design, mathematics of rotating systems, rotary wing dynamics and aerodynamics, aeroelasticity, stability and control, stall, noise and more. Wayne Johnson has worked for the U.S. Army and NASA at the Ames Research Center in California. Through his company Johnson Aeronautics, he is engaged in the development of software that is used throughout the world for the analysis of rotorcraft. In this book, Dr. Johnson has compiled a monumental resource that is essential reading for any student or aeronautical engineer interested in the design and development of vertical-flight aircraft.
Author:
Publisher:
Published: 1973
Total Pages: 512
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1969
Total Pages: 388
ISBN-13:
DOWNLOAD EBOOKAuthor: Elmar J. Breitbach
Publisher: CRC Press
Published: 2003-08-27
Total Pages: 686
ISBN-13: 9780849319273
DOWNLOAD EBOOKThis book will be a valuable step toward the common goal of an "adaptive" scientific community: improving everyone's quality of life in a sustainable and safe way.
Author:
Publisher:
Published: 1975
Total Pages: 588
ISBN-13:
DOWNLOAD EBOOKAuthor: Peter J. Arcidiacono
Publisher:
Published: 1969
Total Pages: 73
ISBN-13:
DOWNLOAD EBOOKThe differential equations of motion for a linearly twisted rotor blade having chordwise mass unbalance and operating under steady flight conditions are derived. The motions include flapping and lagging for the articulated blade, as well as flatwise, edgewise, and torsional deformations for the articulated and nonarticulated blades. The fully coupled aerodynamic forcing functions are based on quasi-steady theory. The differential equations of motion are expanded in terms of the uncoupled vibratory modes of the blade in order to facilitate their numerical solution on a digital computer. (Author).