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dc.contributor.authorKokkolaras, M.en
dc.contributor.authorFilipi, Z.en
dc.contributor.authorStefanopoulou, A.en
dc.contributor.authorPapalambros, P.en
dc.contributor.authorAssanis, D.en
dc.contributor.authorMourelatos, Z.en
dc.contributor.authorLouca, Loucas S.en
dc.contributor.authorDelagrammatikas, G. J.en
dc.creatorKokkolaras, M.en
dc.creatorFilipi, Z.en
dc.creatorStefanopoulou, A.en
dc.creatorPapalambros, P.en
dc.creatorAssanis, D.en
dc.creatorMourelatos, Z.en
dc.creatorLouca, Loucas S.en
dc.creatorDelagrammatikas, G. J.en
dc.description.abstractMedium trucks constitute a large market segment of the commercial transportation sector, and are also used widely for military tactical operations. Recent technological advances in hybrid powertrains and fuel cell auxiliary power units have enabled design alternatives that can improve fuel economy and reduce emissions dramatically. However, deterministic design optimization of these configurations may yield designs that are optimal with respect to performance but raise concerns regarding the reliability of achieving that performance over lifetime. In this article we identify and quantify uncertainties due to modeling approximations or incomplete information. We then model their propagation using Monte Carlo simulation and perform sensitivity analysis to isolate statistically significant uncertainties. Finally, we formulate and solve a series of reliability-based optimization problems and quantify tradeoffs between optimality and reliability. The most relevant design parameters of the diesel engine, fuel cell, driveline and vehicle are considered. The results demonstrate the necessity for addressing uncertainty to make valid assessments and design decisions. Copyright © 2005 SAE International.en
dc.sourceSAE Technical Papersen
dc.subjectMonte Carlo methodsen
dc.subjectMonte Carlo Simulationen
dc.subjectFuel economyen
dc.subjectUncertainty analysisen
dc.subjectDiesel enginesen
dc.subjectAuxiliary power systemsen
dc.subjectAuxiliary power unitsen
dc.subjectFuel cellsen
dc.subjectPerformance reliabilityen
dc.subjectCommercial transportationen
dc.subjectDesign alternativesen
dc.subjectDesign decisionsen
dc.subjectDesign parametersen
dc.subjectDesign under uncertaintyen
dc.subjectDeterministic designen
dc.subjectHybrid powertrainsen
dc.subjectIncomplete informationen
dc.subjectMarket segmenten
dc.subjectReliability based optimizationen
dc.subjectTechnological advancesen
dc.titleDesign under uncertainty and assessment of performance reliability of a dual-use medium truck with hydraulic-hybrid powertrain and fuel cell auxiliary power uniten
dc.identifier.doi10.4271/2005-01-1396Πολυτεχνική Σχολή / Faculty of EngineeringΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.contributor.orcidLouca, Loucas S. [0000-0002-0850-2369]

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