Drawing on his extensive experience as a practicing engineer, designer, educator, and researcher in rotorcraft, the author presents a comprehensive account of the fundamental concepts of structural dynamics and aeroelasticity for conventional rotary wing aircraft, as well as for tilt-rotor and tilt-wing concepts. Intended for use in graduate-level courses and by practicing engineers, the volume covers all of the important topics needed for the complete understanding of rotorcraft structural dynamics and aeroelasticity, including basic analysis tools, rotating beams, gyroscopic phenomena, drive system dynamics, fuselage vibrations, methods for controlling vibrations, dynamic test procedures, stability analysis, mechanical and aeromechanical instabilities of rotors and rotor-pylon assemblies, unsteady aerodynamics and flutter of rotors, and model testing. The second edition provides more up-to-date solution techniques, as well as new material that the author has developed since the first edition. New chapters address elastomeric devices, airfoil sections with an emphasis on composites, cross-over topics, and a historical perspective on the subject material. A new appendix presents basic material on composites. The text is further enhanced by the inclusion of problems in each chapter.

This text provides an introduction to structural dynamics and aeroelasticity, with an emphasis on conventional aircraft. The primary areas considered are structural dynamics, static aeroelasticity and dynamic aeroelasticity. The structural dynamics material emphasizes vibration, the modal representation and dynamic response. Aeroelastic phenomena discussed include divergence, aileron reversal, airload redistribution, unsteady aerodynamics, flutter and elastic tailoring. More than one hundred illustrations and tables help clarify the text and more than fifty problems enhance student learning. This text meets the need for an up-to-date treatment of structural dynamics and aeroelasticity for advanced undergraduate or beginning graduate aerospace engineering students.

The fifth volume of a six-volume monograph, the objective of which is to broaden the awareness among material scientists, engineers, and research workers about the recent developments which can impact future flight vehicles. The present volume, Volume 5, is divided into three parts. The first part h

During the course of this contract the following research tasks were undertaken: A. Aerodynamics tasks which included Experimental Studies for Tip Vortex Core Modeling, Modification of Blade Tip Loading to Improve Hovering Figure of Merit, Prediction of Flow Around Blade Tips, Studies of Unsteady Rotor Aerodynamics and Studies of the Airframe Flowfield in Forward Flight. B. Structure tasks which included Structural Dynamic System Indentification, Crashworthy Characteristics of Composite Rotorcraft Structures and Concepts for Stability Critical Airframe Structures. C. Aeroelasticity tasks which included Helicopter Vibration Suppression Techniques and Rotorcraft Aeroelastic Active Control Investigations. Keywords: Rotary wing aircraft; Rotor dynamics; Structural dynamics; Helicopters; Center of Excellence.

DIVClear, concise text covers aerodynamic phenomena of the rotor and offers guidelines for helicopter performance evaluation. Originally prepared for NASA. Prefaces. New Indexes. 10 black-and-white photos. 537 figures. /div

Here is an introduction to structural dynamics and aeroelasticity, with an emphasis on conventional aircraft. The primary areas considered are structural dynamics, static aeroelasticity and dynamic aeroelasticity. Aeroelastic phenomena discussed include divergence, aileron reversal, airload redistribution, unsteady aerodynamics, flutter and elastic tailoring. Over one hundred illustrations and tables help clarify the text, while more than fifty problems enhance student learning.