A stability analysis of the proposed circulation control rotor (CCR) prototype
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Authors
Cline, John Hendrix
Subjects
Circulation control rotor (CCR)
HX-2/CCR
BASMAT
HX-2/CCR
BASMAT
Advisors
Schmidt, Louis V.
Date of Issue
1977-03
Date
March 1977
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The rotor system of the proposed XH-2/CCR (Circulation Control Rotor) prototype aircraft and the state variable format of the airframe equations of motion are described. Through a study of the eigenvalues and eigenvectors of the basic airframe. the effect of uncoupling and cross-coupling the helicopter equation of motions were analyzed. The control matrix for the CCR was then generated using an applicable pneumatic lead angle for Coanda blowing. Feedback gains, to give the aircraft acceptable flying qualities, were calculated for the Stability Augmentation System (SAS) and finally the aircraft's sensitivity to changes in pneumatic lead angles were studied. the programs used in the above study (capable of handling up to 10 X 10 matrices) are listed for both the IBM-360 and HP-9830 mini-computer.
Type
Thesis
Description
Series/Report No
Department
Department of Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.