Acoustic Fatigue Design Criteria for Elevated Temperatures

摘要

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 tp to 600F to provide data for correlation with the analytical results. Empirical design criteria were developed in the form of equations and nomographs for predictign 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)