Engineering for the Customer: Combining Preference and Physical System Models. Part II—Application
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DONALD E. MALEN [2] ; WALTON M. HANCOCK [1]
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[1] University of Michigan–Ann Arbor
University of Michigan–Ann Arbor
City of Ann Arbor, Estados Unidos
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[2] General Motors Corporation (US)
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- Localización: Journal of Engineering Design, ISSN 0954-4828, Vol. 6, Nº. 4, 1995, págs. 329-341
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
This paper describes an application of a methodology to engineer for customer preference. The methodology is illustrated with an example from automobile door design. Customer preference for solidness of closing-sound is addressed. A model is developed to quantify closing-sound preference, and also the preference for closing-sound/cost trade-off. The model also links customer preference to specific system responses, allowing the designer to address these physical responses. An improved door design is suggested and compared to the current design. The preferred design is selected based on customer preference. The customer preference model was developed using a jury representing customers. A number quantifying preference for closing-sound was assigned to several doors. These doors were then measured for closing-sound pressure time-history. Several factors in the time histories were quantified, and the preference value was regressed on them. A strong correlation was found with one factor, high frequency content. A subsequent assessment for closing-sound/cost pairs quantified trade-off preference. Using regression, a multi-attribute preference function was estimated. The estimated preference model allowed comparison of design concepts based on customer preference.
