Use of a High-Intensity Siren in Fatigue Testing of Structures Subjected to Acoustic Forcing

Abstract

The problem of aircraft structural fatigue under acoustic forcing has led to a need for economical high-speed destructive testing techniques. One such method, employing a high-intensity siren, is described here. A unit presently in use and one now under construction are discussed. A method for using data from this discrete tone test in fatigue design for structure subjected to random sound is outlined.