High Frequency Elastic Analysis Tool

This SBIR project addresses the Navy need for a fast and reliable software tool to assist in the analysis, design, and optimization of submarine and UUV flank array sonar systems. Along with robustness and computational efficiency, this tool must allow Navy engineers to analyze the response of hull and flank arrays due to high frequency incident acoustic pressure loading. Flank array systems share wave-propagation mechanics with coated hulls. From the perspective of a designer, the majority of time should be spent on understanding the physical implications of design parameters such as material selection and dimensions. A pseudo-analytical, frequency domain solution for wave propagation in coated, ribbed, three-dimensional elastic layered plates excited by acoustic plane waves provides fast solutions for high frequency excitations , . Using this solution as a starting point, Weidlinger Associates, Inc. (WAI) has implemented a MATLAB-based graphical user interface (GUI) called WAIHAT Weidlinger Associates Inc. Hull Analysis Tool - which integrates this solution methodology, adds some technical improvements, and allows users to apply this analytical solution efficiently in analysis and design. This document describes enhancements to the WAIHAT software product which will increase its utility to the Navy Sonar and hull coating design communities.