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Correlation Of Analytical Calculations From Grasp General Rotorcraft Aeromechanical Stability Program With Torsionally Soft Rotor Data

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Correlation Of Analytical Calculations From Grasp General Rotorcraft Aeromechanical Stability Program With Torsionally Soft Rotor Data

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Author : Donald L. Kunz
language : en
Publisher:
Release Date : 1987

Correlation Of Analytical Calculations From Grasp General Rotorcraft Aeromechanical Stability Program With Torsionally Soft Rotor Data written by Donald L. Kunz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

As a part of the continuing effort to develop and validate the General Rotorcraft Aeromechanical Stability Program (GRASP), a correlation study is presented to compare the frequency, moment, and stability data for a model-scale, torsionally-soft, helicoptor rotor with GRASP numerical calculations. The hierarchical representation of the model rotor is discussed along with the calculations of the vacuum frequencies, the steady-state blade moments in air, and the aeroelastic stability. Correlation is generally quite good. The GRASP predictions of the first vacuum flap frequencies are outstanding and the first vacuum lag and torsion frequencies correlate reasonably well with the experimental data. Consistently outstanding results are obtained for all of the steady blade moments. The calculations of stability data are in general as good as those made by other programs, but are not quite as good as anticipated.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1987

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Aeronautics categories.

Nasa Sp

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Author :
language : en
Publisher:
Release Date : 1992

Nasa Sp written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.

A Collection Of Technical Papers

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Author :
language : en
Publisher:
Release Date : 1987

A Collection Of Technical Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Materials categories.

Aeronautical Engineering A Cumulative Index To A Continuing Bibliography

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Author :
language : en
Publisher:
Release Date : 1988

Aeronautical Engineering A Cumulative Index To A Continuing Bibliography written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

Aeronautical Engineering

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Author :
language : en
Publisher:
Release Date : 1992

Aeronautical Engineering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.

A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).