文档介绍：本科毕业论文(设计)
外文翻译
原文:
Estimating Cost at the Conceptual Design Stage to Optimize Design in terms of Performance and Cost
In the petitive business environment, cost estimation is a strategic tool, which can be used to assist decision making with regard to products throughout their life cycle. 70 to 80 percent of the life-cycle costs of a product are determined by decision taken by designers during the early design stages. Therefore it is important to estimate and optimize cost as early and as accurately as possible. The main aim of this research is to use typically available information at the conceptual stage of design and estimate cost in order to optimize design in terms of performance and cost. The main objective is to employ Design of Experiments (Taguchi method) to use the sparse information more effectively in order to estimate the cost of a product at the early design stage. This paper presents the current status of the research activity. A case study is introduced which illustrates the initial applications of the optimization process. Conclusions are then discussed and the future research described.
One of the difficult tasks undertaken by designers is to evaluate the cost of a new design. When designers start to design a new product, cost is a critical factor in determining whether the product will be viable or not. Nowadays pany needs to estimate the cost of the product and the confidence of that estimate in order to start to design and manufacture a product in detail. Reliable cost estimation of future products plays a significant part for designers in avoiding investing much time and losing considerable sums on non-economically viable products. Good cost estimation plays a significant part in the performance and effectiveness of a business enterprise as overestimation can result in loss of business and goodwill, whereas underestimation may lead to financial loss to the enterprise. Asiedu and Eu [1] state that: The greater the underestimate, the greate