NDLI: A summary of recent nasa/army contributions to rotorcraft vibrations and structural dynamics technology

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A summary of recent nasa/army contributions to rotorcraft vibrations and structural dynamics technology

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bartlett Jr., Felton D. Kvaternik, Raymond G. Cline, John H.
Copyright Year	1988
Description	The requirement for low vibrations has achieved the status of a critical design consideration in modern helicopters. There is now a recognized need to account for vibrations during both the analytical and experimental phases of design. Research activities in this area were both broad and varied and notable advances were made in recent years in the critical elements of the technology base needed to achieve the goal of a jet smooth ride. The purpose is to present an overview of accomplishments and current activities of govern and government-sponsored research in the area of rotorcraft vibrations and structural dynamics, focusing on NASA and Army contributions over the last decade or so. Specific topics addressed include: airframe finite-element modeling for static and dynamic analyses, analysis of coupled rotor-airframe vibrations, optimization of airframes subject to vibration constraints, active and passive control of vibrations in both the rotating and fixed systems, and integration of testing and analysis in such guises as modal analysis, system identification, structural modification, and vibratory loads measurement.
File Size	29795025
Page Count	109
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880007245
Archival Resource Key	ark:/13960/t6644n33v
Language	English
Publisher Date	1988-02-01
Access Restriction	Open
Subject Keyword	Aircraft Stability And Control Dynamic Structural Analysis Finite Element Method Vibration Vibration Damping Computational Fluid Dynamics Helicopters Rotor Aerodynamics Rotor Body Interactions Nastran Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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