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.
Acoustic Fatigue Design Criteria for Elevated Temperatures
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.
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.
Acoustic Fatigue of Aircraft Structures at Elevated Temperatures
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.
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.
Fatigue at Elevated Temperatures
Author:
Publisher: ASTM International
ISBN:
Category : Metals
Languages : en
Pages : 804
Book Description
Publisher: ASTM International
ISBN:
Category : Metals
Languages : en
Pages : 804
Book Description
Technical Abstract Bulletin
STRUCTURAL DESIGN FOR ACOUSTIC FATIGUE.
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).
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).
Scientific and Technical Aerospace Reports
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.
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.
Aeroacoustics
Author: Henry T. Nagamatsu
Publisher:
ISBN:
Category : Jet planes
Languages : en
Pages : 538
Book Description
Publisher:
ISBN:
Category : Jet planes
Languages : en
Pages : 538
Book Description
Sonic Fatigue Design Techniques for Advanced Composite Aircraft Structures
Author: I. Holehouse
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 348
Book Description
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 348
Book Description
Proceedings of the Air Force Conference on Fatigue and Fracture of Aircraft Structures and Materials
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.
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.
Technical Publications Announcements with Indexes
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1100
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1100
Book Description