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An Optimization Study of Manufacturing Variation Effects on Diesel Injector Design with Emphasis on Emissions
University of Michigan.
University of Michigan.
University of Michigan.
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2005 (English)In: S A E Transactions, ISSN 0096-736X, Vol. 113, no Section 5, p. 724-733Article in journal (Refereed) Published
Abstract [en]

This paper investigates the effects of manufacturing variations in fuel injectors on the engine performance with emphasis on emissions. The variations are taken into consideration within a Reliability-Based Design Optimization (RBDO) framework. A reduced version of Multi-Zone Diesel engine Simulation (MZDS), MZDS-lite, is used to enable the optimization study. The numerical noise of MZDS-lite prohibits the use of gradient-based optimization methods. Therefore, surrogate models are developed to filter out the noise and to reduce computational cost. Three multi-objective optimization problems are formulated, solved and compared: deterministic optimization using MZDS-lite, deterministic optimization using surrogate models and RBDO using surrogate models. The obtained results confirm that manufacturing variation effects must be taken into account in the early product development stages

Place, publisher, year, edition, pages
2005. Vol. 113, no Section 5, p. 724-733
Identifiers
URN: urn:nbn:se:ltu:diva-10875DOI: 10.4271/2004-01-1560Local ID: 9c161bfc-b55a-434c-a50f-16abca6dfd42OAI: oai:DiVA.org:ltu-10875DiVA, id: diva2:983823
Note
Upprättat; 2011; 20110707 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Kokkolaras, Michael

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