A Framework for Decision-Based Engineering Design

Hazelrigg, George A.

doi:10.1115/1.2829328

Cited by 524 publications

(303 citation statements)

References 8 publications

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“…According to standard microeconomic theory [3], improvement in product quality yields an increase in product demand q. Hazelrigg [4] observed that engineering decisions x affect product performance attributes , which in turn affect the demand of the product q, as shown in Figure 6. In our case, the surface roughness decision x for the intake manifold of engine M influences horsepower , a product characteristic observed by the consumer, and hence it would affect product demand q.…”

Section: Economic Modelingmentioning

confidence: 99%

Model Based Analysis of Performance-Cost Tradeoffs for Engine Manifold Surface Finishing

Li¹,

Georgiopoulos²,

Papalambros³

et al. 2004

SAE Technical Paper Series

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The link between manufacturing process and product performance is studied in order to construct analytical, quantifiable criteria for the introduction of new engine technologies and processes. Cost associated with a new process must be balanced against increases in engine performance and thus demand for the particular vehicle. In this work, the effect of the Abrasive Flow Machining (AFM) technique on surface roughness is characterized through measurements of specimens, and a predictive engine simulation is used to quantify performance gains due to the new surface finish. Subsequently, economic cost-benefit analysis is used to evaluate manufacturing decisions based on their impact on firm's profitability. A demonstration study examines the use of AFM for finishing the inner surfaces of intake manifolds for two engines, one installed in a compact car and the other in an SUV.

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Section: Economic Modelingmentioning

confidence: 99%

Model Based Analysis of Performance-Cost Tradeoffs for Engine Manifold Surface Finishing

Li¹,

Georgiopoulos²,

Papalambros³

et al. 2004

SAE Technical Paper Series

View full text Add to dashboard Cite

show abstract

“…In its classical definition, VDD postulates that engineers, when making design choices, must select the "best" design, rather than selecting the one that is most likely to meet requirements (Hazelrigg 1998). Collopy and Hollingsworth (2011) explains VDD using a cyclical view of the design process.…”

Section: Working With Value Driven Designmentioning

confidence: 99%

Product Development in the Socio-sphere

Schaefer¹

2014

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In the last decade, as the manufacturing companies have reconsidered the overall concept of goods production, their focus shifted from developing 'products' to 'solutions'. In complex supply chains, the combination of products and services that maximize customers' and stakeholders' value can be identified only if manufacturers improve their ability to co-create, establishing more interactive relationships with end users, clients and sub-contractors. Methodologies for Value Driven Design (VDD) are emerging as enablers for cross-functional and cross-organizational knowledge sharing, reinforcing early stages design iterations to emphasize the maturation of the requirements across supply chain levels. This chapter highlights the uptake of VDD in a traditionally protective domain, such as the aerospace sector. It describes methods and tools for value assessment, and points toward the most relevant initiatives in this domain. Eventually, it discusses areas of further research to promote the effective use of the VDD methodology while designing complex engineering systems.

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“…For example, in the field of AI, Gero (1990) suggests that analysis deals with the behaviour of objects, while evaluation is a comparison between alternatives. In AI, one can therefore think of analysis as the prediction of how an artefact (product, service or system) may behave according to a set of determined criteria (reliability, sustainability, costs, flexibility, feasibility, and so forth) (Gero & Kannengiesser, 2004;Hazelrigg, 1998). Evaluation, in turn, can be understood in the general field of design as the means by which one can compare alternative concepts (see, for example, how Dieter and Schmidt (2013) explain evaluation).…”

Section: Analysis and Evaluation In The Early Stages Of Designingmentioning

confidence: 99%

Early stages of designing resource-efficient offerings : An initial view of their analysis and evaluation

Brambila‐Macias

2018

Linköping Studies in Science and Technology. Licentiate Thesis

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The increasing use of natural resources and the pollution it causes calls for new ways of addressing customer needs. Additionally, a more uncertain and complex world also presents new challenges. In this thesis, these new challenges are tackled through inter and transdisciplinary research, which require more interaction across disciplines to tackle complex phenomena.The manner in which companies address customer needs starts from the designing (a multiplestakeholder perspective) of offerings where companies rely on different types of support (guidelines, standards, methods and tools). In this thesis, these offerings, include products, services, systems, and solutions. This plays an important role in the use of natural resources and its impact on the environment. In this Licentiate, I present results to show initial cues on how to design resource-efficient offerings, and more specifically their analysis and evaluation in the early stages of the design process. This type of offerings is suggested to be crucial for the circular economy, which can be understood as a paradigm shift towards sustainability. In this paradigm shift, designing is carried out by taking into account reuse, remanufacture and recycling of products as strategies by multiple stakeholders and companies. Other strategies include providing services, a function or a solution through dematerialization and transmaterialization.The methods used in this research are narrative and systematic literature reviews, thematic analysis and a case study. The results show a lack of interdisciplinary research in the academic literature in subjects relevant to the design of resource-efficient offerings. The results also show a need to clarify what transdisciplinary research entails. Moreover, current practice shows that support used by companies needs to consider several factors for it to be useful, for example, the vision of the company, participation of potential users of the support and everyday operations, among other characteristics. Finally, more practical support coming from academia is necessary to improve its use in industry.

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A Framework for Decision-Based Engineering Design

Cited by 524 publications

References 8 publications

Model Based Analysis of Performance-Cost Tradeoffs for Engine Manifold Surface Finishing

Model Based Analysis of Performance-Cost Tradeoffs for Engine Manifold Surface Finishing

Product Development in the Socio-sphere

Early stages of designing resource-efficient offerings : An initial view of their analysis and evaluation

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