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An Experimental Investigation Of Trunk Flutter Of An Air Cushion Landing System
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Book Synopsis An Experimental Investigation of Trunk Flutter of an Air Cushion Landing System by : Carmine J. Forzono
Download or read book An Experimental Investigation of Trunk Flutter of an Air Cushion Landing System written by Carmine J. Forzono and published by . This book was released on 1975 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work was to experimentally investigate the phenomenon of air cushion vehicle trunk flutter and attempt to eliminate it. The occurrence of trunk flutter was found to be eliminated with the use of tread strips (1/2 in.-wide pieces of rubber, cut to certain lengths and thicknesses) attached to the bottom of the trunk tread. These strips form channels when placed side-by-side that allow the flutter-producing cushion air to escape from beneath the vehicle without causing trunk flutter. This flutter elimination device can be employed without the loss of the required cushion pressure or an increase of the drive air flow into the air cushion system. It is recommended that a dynamic air cushion system that is known to exhibit flutter, be designed with a trunk tread having permanently affixed tread strips. These tests are needed to confirm the successful flutter eliminating characteristics of tread strips, which are statically tested in this report. (Author).
Book Synopsis An Experimental Investigation of Air Cushion Flutter Using a Two-Dimensional Trunk Model by :
Download or read book An Experimental Investigation of Air Cushion Flutter Using a Two-Dimensional Trunk Model written by and published by . This book was released on 1984 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program was an in-house project, to test the effectiveness of flutter control elements on an air cushion trunk. A single inelastic trunk carcass was used throughout the program. Individual elements were added to change the stiffness or mass of the fabric, or to control air flow under the trunk. The elements were tested individually and together. None of the elements was permanently attached to the trunk: rubber cement and duct tape were used to secure them. The motions of the trunk were observed under a variety of pressure and ground clearance settings. Manual data collections were made. Although the fabric used here was lighter than that used on the full-scale XC-8A aircraft tests, the performance of this quarter-scale rig was similar to what was seen on the actual aircraft. These passive elements did affect the amount of control force required to stop the large amplitude heave oscillations. Based on these tests, recommendations were made to produce a light, effective trunk system free of flutter.
Book Synopsis Trunk Flutter of an Air Cushion Landing System by : Daryl Warren McCallister
Download or read book Trunk Flutter of an Air Cushion Landing System written by Daryl Warren McCallister and published by . This book was released on 1978 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Experimental and Analytical Studies of Advanced Air Cushion Landing Systems by :
Download or read book Experimental and Analytical Studies of Advanced Air Cushion Landing Systems written by and published by . This book was released on 1981 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heave-pitch-roll Analysis and Testing of Air Cushion Landing Systems by : Ashok B. Boghani
Download or read book Heave-pitch-roll Analysis and Testing of Air Cushion Landing Systems written by Ashok B. Boghani and published by . This book was released on 1978 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heave-pitch-roll Analysis and Testing of Air Cushion Landing Systems by : A. B. Boghani
Download or read book Heave-pitch-roll Analysis and Testing of Air Cushion Landing Systems written by A. B. Boghani and published by . This book was released on 1978 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Studies of Advanced Air Cushion Landing Systems by : E. G. S. Lee
Download or read book Experimental and Analytical Studies of Advanced Air Cushion Landing Systems written by E. G. S. Lee and published by . This book was released on 1981 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1979 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1975 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Trunk Flutter in an Air Cushion Landing System. User's Manual by : Roger B. Fish
Download or read book Analysis of Trunk Flutter in an Air Cushion Landing System. User's Manual written by Roger B. Fish and published by . This book was released on 1979 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This User's Manual (Computer Program) describes the computer programs for trunk flutter analysis. It includes descriptions, user instructions, and a sample run for the trunk flutter dynamic simulation program, and an eigenvalue calculation program for a linearized static trunk model.
Download or read book NASA Contractor Report written by and published by . This book was released on 1981 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Studies of Advanced Air Cushion Landing Systems by :
Download or read book Experimental and Analytical Studies of Advanced Air Cushion Landing Systems written by and published by . This book was released on 1981 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An International Survey of Shock and Vibration Technology by : Henry C. Pusey
Download or read book An International Survey of Shock and Vibration Technology written by Henry C. Pusey and published by . This book was released on 1979 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aeronautical Engineering: A Continuing Bibliography, 1982 Cumulative Index by :
Download or read book Aeronautical Engineering: A Continuing Bibliography, 1982 Cumulative Index written by and published by . This book was released on 1983 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Landing-impact Studies of a 0.3-scale Model Air Cushion Landing System for a Navy Fighter Airplane by : Trafford J. W. Leland
Download or read book Landing-impact Studies of a 0.3-scale Model Air Cushion Landing System for a Navy Fighter Airplane written by Trafford J. W. Leland and published by . This book was released on 1975 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was conducted in order to determine the landing-impact behavior of a 0.3-scale, dynamically (but not physically) similar model of a high-density Navy fighter equipped with an air cushion landing system. The model was tested over a range of landing contact attitudes at high forward speeds and sink rates on a specialized test fixture at the Langley aircraft landing loads and traction facility. The investigation indicated that vertical acceleration at landing impact was highly dependent on the pitch angle at ground contact, the higher acceleration of approximately 5g occurring near zero body-pitch attitude. A limited number of low-speed taxi tests were made in order to determine model stability characteristics. The model was found to have good pitch-damping characteristics but stability in roll was marginal.
