Developing a prototype concurrent design tool for composite topside structures

作     者：Dirlik, S Hambric, S Azarm, S Marquardt, M Hellman, A Bartlett, S Castelli, V 

作者机构：Steve Dirlik:began his career at the Naval Surface Warfare Center Carderock Division in 1981 as an aerospace engineer co-op student. He completed his bachelor of science degree in aeropace and ocean engineering from Virginia Polytechnic Institute and State University in 1985 and his master of science degree in aerospace engineering from the University of Maryland in 1990. Mr. Dirlik recently completed a master of science program in applied physics at The Johns Hopins University and currently works in the Radar Cross Section and Target Physics Branch of the Signatures Directorate at the Naval Surface Warfare Center Corderoke Division. He has worked on Navy low observable programs since 1990. Stephen Hambric:is a research associate at the Applied Research Laboratory at The Pennsylvania State University. He received his B. S. and M.S. degree in mechanical engineering from Virginia Polytechnic Institute and State University and his D. Sc. in mechnical engineering from the George Washington University. He has worked on several computer aided multidiscikplinary design and optimization projects over the years including an automated propeller design system and a structural acoustic optimization capability. Dr. Shpour Azarm:is currently working as an associate professor with the Design and Manufacturing Group of the Department of Mechanical Engineering at the University of maryland at College Park. Dr Azarm's expertise is in the areas of optimization-based designed and concurrent design and optimization of multidisciplinary systems. He was a consultant at Black & Decker Corporation (summer 1996) and worked as a Navy senior summer faculty fellow (summer 1995) and a NASA summer faculty fellow (summer 1994). He was a visiting scientist at NASA Langley Research Center for Multidisciplinary Analysis and Applied Structural Optimzatiom at the University of Siegen in Germany (spring 1992) and the Design Institute of the Technical University of Denmark (summer 1990). Dr Azarm was an associate technical editor of the ASME Journal of Mechanical Design (1993-1995) a paper review chair for the 1993 and 1995 ASME Design Automation Conferences and chairman of the 1996 ASME Design Automation Conference. He is currently the chair of the ASME Design Automation Committee. Mary Beth Marquardt:graduated from Trinity College Washington D. C. in 1970 and began her work experience at the David Taylor Model Basin as a mathematician. She became interested in computer graphics which eventually evolved into interest in visualization and related areas such as grapical user interface (GUI) development. She is currently providing graphics support at the Hydrodynamici Hydroacoustic Technology Center at the Naval Surface Warfare Center Carderock Division (NSWCCD). Scott Barlett:has been a mechanical engineer at the Naval Surface Warfare Center Carderock Division since 1989. He completed his bachelm of science degree in mechanical engineer-ing at Virginia Polytechnic Institute and State University in 1986 and went on to complete his master of science degree in engineering mechanics at Virgina Tech in 1989 in the area of nondestructive testing of composite structures. Mx Bartlett currently works in the Composites & Structures Department of the Materials Structures & Survivability Directorate. He has been the principal investigator and task leader for several composite topside strmcture programs for Nay and commercial vessels. Dr. Vincent J. Castelli:received his B.S. degree in chemistry from the Brooklyn Polytechnic Institute (now Polytechnic Univer-sity) in 1970 and his Ph.D. in physical chemistry from the University of Maryland in 1982. He began his professional career at the Naval Applied Science Laboratory (Brooklyn NY) in 1966 as a co-op student working in the area of high pressure microbi-ology and transferred to the Naval Research and Develofment Center (Annapolis MD) in 1970. At the Annapolis laboratory he was involved in and directed a number of technical projects in the areas of high pressure chemistry marine fouling antifouling coating development composites and nonmetallic materials and signature control materials. He transferred to the Naval Surface Warfare Center Carderock Division in 1996 where he heads the Technology Integration Office and is responsible fm identiljting promising new technologies for the Navy and developing interdis-ciplinary approaches to complex design problems. 

出 版 物：《NAVAL ENGINEERS JOURNAL》 (造船工程师杂志)

年 卷 期：1997年第109卷第3期

页      面：279-290页

核心收录：

学科分类：0707[理学-海洋科学] 08[工学] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 

主　　题：Warships 

摘      要：A prototype concurrent engineering tool has been developed for the preliminary design of composite topside structures for modern navy warships. This tool, named GELS for the Concurrent Engineering of Layered Structures, provides designers with an immediate assessment of the impacts of their decisions on several disciplines which are important to the performance of a modern naval topside structure, including electromagnetic interference effects (EMI), radar cross section (RCS), structural integrity, cost, and weight. Preliminary analysis modules in each of these disciplines are integrated to operate from a common set of design variables and a common materials database. Performance in each discipline and an overall fitness function for the concept are then evaluated. A graphical user interface (GUI) is used to define requirements and to display the results from the technical analysis modules. Optimization techniques, including feasible sequential quadratic programming (FSQP) and exhaustive search are used to modify the design variables to satisfy all requirements simultaneously. The development of this tool, the technical modules, and their integration are discussed noting the decisions and compromises required to develop and integrate the modules into a prototype conceptual design tool.