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General Rotorcraft Aeromechanical Stability Program (GRASP) version 1.03: User's manualThe Rotorcraft Dynamics Division, Aeroflightdynamics Directorate, U.S. Army Aviation Research and Technology Activity has developed the General Rotorcraft Aeromechanical Stability Program (GRASP) to perform calculations that will assess the stability of rotorcraft in hovering flight and ground contact conditions. The program is designed to be state-of-the-art, hybrid, finite-element/multibody code that can be applied to all existing and future helicopter configurations. While GRASP was specifically designed to solve rotorcraft stability problems, its innovative structure and formulation allow for application to a wide range of structures. This manual describes the preparation of the input file required by Version 1.03 of GRASP, the procedures used to invoke GRASP on the NASA Ames Research Center CRAY X-MP 48 computer, and the interpretation of the output produced by GRASP. The parameters used by the input file are defined, and summaries of the input file and the job control language are included.
Document ID
19880007929
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Hopkins, A. Stewart
(NASA Ames Research Center Moffett Field, CA, United States)
Kunz, Donald L.
(Army Aviation Research and Development Command Moffett Field, Calif., United States)
Date Acquired
September 5, 2013
Publication Date
February 1, 1988
Subject Category
Computer Programming And Software
Report/Patent Number
A-88028
NAS 1.15:100043
USAAVSCOM-TR-87-A-12
AD-A194157
NASA-TM-100043
Accession Number
88N17313
Funding Number(s)
PROJECT: RTOP 992-21-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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