Research on Impact Location Method of Complex Spacecraft Pressure Vessel Structure

Abstract

Taking complex spacecraft shell structure containing local small features (such as support, assembly interface, stiffener, etc.) as the object. From the perspective of average, considering the leakage and disturbance of elastic wave propagation caused by local small features on the surface. Based on the fact that the energy path required for elastic wave propagation from one source to any other point on the structural shell is the smallest, a method of impact location using time history data is proposed. A simulation example of typical impact event location of pressure storage tank is given. The results show that the positioning error obtained by this method can meet the defined engineering requirements (0.5 m) for the disposal of impact events, and has a certain engineering reference value for the positioning of complex spacecraft structure cabin impacted by space debris.