DESIGN TARGET CASCADING FOR VIBRO-ACOUSTIC CONCEPTUAL DESIGN OF AN AUTOMOBILE SUBFRAME
DS 32: Proceedings of DESIGN 2004, the 8th International Design Conference, Dubrovnik, Croatia
Year: 2004
Editor: Marjanovic D.
Author: Hamdi, A.; Yannou, B.; Landel, E.
Section: TECHNICAL SYSTEMS
Page(s): 1271 - 1276
Abstract
Product decomposition speeds up design stages, allows concurrent engineering and improves product quality. In the conceptual design stage, design teams focus separately on each subsystem and develop physical models (principle solution) which must meet some independent design requirements. But these requirements at the subsystems levels must be synthesized so as to meet at best the system performance targets. The paper applies a target cascading strategy to the optimization of the road noise performance of an automotive system. It focuses on how vibro-acoustic performance targets are specified and aggregated at a subsystem level (the front subframe) and how the current vibro-acoustic performances are assessed and optimized.
Keywords: conceptual design, performance assessment, metamodel, criteria cascading