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Nasa PHT

ROTORCRAFT ANALYSIS

Aeroelastic Analysis for Rotorcraft in Flight or in a Wind Tunnel


The testing of rotorcraft, either in flight or in a wind tunnel, requires a consideration of the coupled aeroelastic stability of the rotor and airframe, or the rotor and support system. Even if the primary purpose of a test is to measure rotor performance, ignoring the question of dynamic stability introduces the risk of catastrophic failure of the aircraft. This computer program was developed to incorporate an analytical model of the aeroelastic behavior of a wide range of rotorcraft. Such an analytical model is desirable for both pre-test predictions and post-test correlations. The program is also applicable in investigations of isolated rotor aeroelasticity and helicopter flight dynamics and could be employed as a basis for more extensive investigations of aeroelastic behavior, such as automatic control system design.


Program Size: 13,793 Statements
Computer Language: FORTRAN IV

Copyright (c) 1996 Pacific HiTech, Inc. and COSMIC