NDLI: Application of a comprehensive analytical model of rotor aerodynamics and dynamics (camrad) to the mcdonnell douglas ah-64a helicopter

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Application of a comprehensive analytical model of rotor aerodynamics and dynamics (camrad) to the mcdonnell douglas ah-64a helicopter

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bassett, Duane E. Callahan, Cynthia B.
Copyright Year	1988
Description	A model of the AH-64A helicopter was generated in a Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics (CAMRAD) in an effort to validate its analytical capabilities for modeling a current advanced Army helicopter. The initial phase of the effort involved the generation of CAMRAD input files necessary for the complete aerodynamic, structural, and dynamic definition of the production AH-64A helicopter. The input files were checked by making comparisons of CAMRAD full helicopter trim and main rotor blade natural frequency predictions with those of full helicopter trim program, Blade Element Trim (BETRIM), and dynamic analysis code, Dynamic Analysis Research Tool (DART), respectively. The main thrust concerned the application of the AH-64A CAMRAD model thus developed and verified for main rotor blade structural loads predictions and comparison with DART analytical results. The investigation provided insight not only into the usefulness of CAMRAD for the AH-64A performance and dynamics prediction, but also into the limitations of the program for modeling advanced rotor and fuselage systems. The model development effort is discussed, the results of the CAMRAD correlation studies presented, and some general conclusions are offered on the applicability of CAMRAD for rotor aeroelastic loads prediction for current and future rotorcraft configurations.
File Size	2384910
Page Count	62
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890008207
Archival Resource Key	ark:/13960/t6256hm3s
Language	English
Publisher Date	1988-11-01
Access Restriction	Open
Subject Keyword	Aerodynamics Rotor Blades Turbomachinery Aerodynamic Balance Predictions Ah-64 Helicopter Rotor Aerodynamics Mathematical Models Aeroelasticity Helicopter Design Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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