Sound Radiation from a Floating Runway due to an Airplane Taking off Affected by Mean Flow

Abstract

Sound radiation caused by taking off of an airplane from a floating runway is an unexplored area which has a serious but unstudied impact on marine life. For such a study, conventional means of using a three dimensional runway with time varying loading during takeoff is extremely difficult and time consuming. The analysis is made simpler by assuming the VLFS to be a simple, infinitely long beam supported by buoyancy. Sound radiation using Timoshenko-Mindlin beam model subjected to varying take off speeds and presence of mean flow is investigated