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Author: Cecil W. Schneider Publisher: ISBN: Category : Languages : en Pages : 77
Book Description
An analytical and experimental program was conducted to develop acoustic fatigue design criteria for aircraft structures subjected to intense noise in a high temperature environment. Equations for the dynamic response of a buckled panel were formulated for simply supported boundary conditions using large deflection plate theory. Random amplitude acoustic fatigue testing of representative aircraft structure was accomplished at temperatures up to 600 deg F to provide data for correlation with the analytical results. Empirical design criteria were developed in the form of equations and nomographs for predicting the thermal and dynamic response of aircraft structures subjected to combined environments. The empirical design criteria are presented in handbook format for design use; examples and computer programs are also presented.
Author: Cecil W. Schneider Publisher: ISBN: Category : Languages : en Pages : 77
Book Description
An analytical and experimental program was conducted to develop acoustic fatigue design criteria for aircraft structures subjected to intense noise in a high temperature environment. Equations for the dynamic response of a buckled panel were formulated for simply supported boundary conditions using large deflection plate theory. Random amplitude acoustic fatigue testing of representative aircraft structure was accomplished at temperatures up to 600 deg F to provide data for correlation with the analytical results. Empirical design criteria were developed in the form of equations and nomographs for predicting the thermal and dynamic response of aircraft structures subjected to combined environments. The empirical design criteria are presented in handbook format for design use; examples and computer programs are also presented.
Author: Cecil W. Schneider Publisher: ISBN: Category : Languages : en Pages : 218
Book Description
An analytical and experimental program was conducted to develop acoustic fatigue design criteria for aircraft structures subjected to intense noise in a high temperature environment. Equations for the dynamic response of a buckled panel were formulated for simply supported boundary conditions using large deflection plate theory. Random amplitude acoustic fatigue testing of representative aircraft structure was accomplished at temperatures up to 600 F to provide data for correlation with the analytical results. Empirical design criteria are presented in the form of design equations and nomographs for predicting the combined thermal and dynamic response of aircraft structures.
Author: DOUGLAS AIRCRAFT CO INC LONG BEACH CALIF. Publisher: ISBN: Category : Languages : en Pages : 119
Book Description
Results of either descretely or randomly excited structural acoustic tests are extended through an analytical approach and these results are presented as design nomographs. The source of acoustic excitation was considered to be the propulsion system; the structure of main interest was the lighter structural configuration common to wing trailing edges, empennage, or fuselage afterbody. These structural components are most commonly exposed to acoustic environments and are such that other design criteria are not critical. The design results are presented as a function of the allowable random fatigue life of the material. Use of elevated temperature data for this fatigue life would account for the direct effect on the material of elevated temperature. No attempt was made to account for the over-all effect of elevated temperature; this depends so greatly on the response of the adjoining structure that it is beyond the scope of this study. Additionally, for a majority of the structural components under study the damage occurs at takeoff when temperatures are nominal and combined effects are insignificant. (Author).
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 456
Book Description
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.
Author: Air Force Flight Dynamics Laboratory (U.S.) Publisher: ISBN: Category : Airframes Languages : en Pages : 924
Book Description
The document is comprised of papers presented at the Air Force Conference on Fatigue of Aircraft Structures and Materials, sponsored by the Air Force Flight Dynamics Laboratory (AFFDL) and the Air Force Materials Laboratory (AFML), Air Force Systems Command. The purpose of the Conference was to discuss technological advancements in fatigue and fracture theory. The Conference was comprised of ten technical sessions (including two panel discussions) entitled 'The Role of Materials in Structures'; 'Fundamentals I + II'; 'Criteria'; 'Fracture I + II'; 'Phenomena I + II'; 'Analysis'; 'Design and Service Experience'. A total of fifty-six technical papers were presented.
Author: Cecil W. Schneider
Author: Cecil W. Schneider
Author: Cecil W. Schneider
Author: 
Author: 
Author: DOUGLAS AIRCRAFT CO INC LONG BEACH CALIF.
Author: 
Author: Henry T. Nagamatsu
Author: I. Holehouse
Author: Air Force Flight Dynamics Laboratory (U.S.)
Author: United States. National Aeronautics and Space Administration