|
Missile Motion Sensitivity to Dynamic Stability Derivatives
Report Number: AEDC TR 80-11
Author(s): T. F. Langham
Corporate Author: ARO, Inc.
Laboratory: Arnold Engineering Development Center
Publication Date: 9/1/1980
Pages: 112
Contract: Laboratory Research - No Contract
Project: None Given
Task: None Given
AD Number: ADA089750
Photo Enhancement: Not Needed
Abstract Text:
A dynamic derivative sensitivity study was conducted to demonstrate the importance of dynamic derivatives in missile motion simulation studies. Generalized bank-to-turn and yaw-to-turn missile configurations were used with a six-degree-of-freedom linearized stability program. The effects of various dynamic derivatives on missile stability were investigated in both level and turning flight for several Mach numbers and altitude conditions.
Options for obtaining report:
Via Contrails:
This report is avalable for download via Contrails:  (112 pages, 1.888 MB)
Via DTIC Online:
This report is not available for download via DTIC Online
Via NASA Technical Report Server:
This report is not available for download via NTRS
Via National Technical Information Service:
The NTIS Order Number for this report is: ADA089750
This report should be available for purchase from NTIS at 1-800-553-NTIS
Reference the NTIS Order Number from this record when ordering from NTIS
Be sure to verify bibilographic info when ordering
Indications of Public Availabilty:
No digitial image of an index entry indicating public availability is currently available
There has been no verification of an indication of public availability from an inside cover statement
The Effect of Pressure Pulsations and Vibrations on Fully Developed Pipe Flow
Report Number: AEDC TR 80-31
Author(s): Barnett, Donald O.
Corporate Author: Arnold Engineering Development Center
Publication Date: 8/1/1981
Project: 0
Task: 0
AD Number: ADA103330
Photo Enhancement: Not Needed
Abstract Text:
An analysis is presented of the effect of longitudinal pressure pulsations or vibrations on the velocity distribution in laminar or turbulent fully developed pipe flow. Specifically, the Reynolds equations are formulated in a noninertial reference frame so that the influence of pressure pulsations, vibrations, or a combined pressure and vibrational oscillation can be obtained from a single solution. For axisymmetric developed flow of a constant property (incompressible) fluid, the radial and circumferential momentum equations can be solved and the axial momentum equation is linearized so that the velocity field can be obtained as the sum of a steady and a time-dependent component. By obtaining a solution for the case where the pressure (or amplitude of vibration) varies sinusoidally, one obtains the solution for disturbances of arbitrary waveform through a Fourier series expansion of the disturbance. Results are presented that show that the velocity field is dependent upon the mean flow Reynolds number, a vibrational Reynolds number, and the amplitude of the forcing function. In general, the fluid response to differing waveforms is similar to that obtained for simple harmonic oscillations with respect to the various parameters explored.
Options for obtaining report:
Via Contrails:
This report has yet to be scanned by Contrails staff.
Click here to request scanning of this report
Via DTIC Online:
This report is not available for download via DTIC Online
Via NASA Technical Report Server:
This report is not available for download via NTRS
Via National Technical Information Service:
The NTIS Order Number for this report is: ADA103330
This report should be available for purchase from NTIS at 1-800-553-NTIS
Reference the NTIS Order Number from this record when ordering from NTIS
Be sure to verify bibilographic info when ordering
Indications of Public Availabilty:
No digitial image of an index entry indicating public availability is currently available
|
|
