서광규 박지형 2024-01-21T06:33:09Z 2024-01-21T06:33:09Z 2021-09-06 2004-09 1225-9071 https://pubs.kist.re.kr/handle/201004/137267 As over 70 % of the total life cycle cost (LCC) of a product is committed at the early design stage, designers are in an important position to substantially reduce the LCC of the products they design by giving due to life cycle implications of their design decisions. During early design stages, there may be competing concepts with dramatic differences. In addition, the detailed information is scarce and decisions must be made quickly. Thus, both the overhead in developing parametric LCC models for a wide range of concepts, and the lack of detailed information make the application of traditional LCC models impractical. A different approach is needed, because a traditional LCC method is to be incorporated in the very early design stages. This paper explores an approximate method for providing the preliminary LCC. Learning algorithms trained to use the known characteristics of existing products might allow the LCC of new products to be approximated quickly during the conceptual design phase without the overhead of defining new LCC models. Artificial neural networks are trained to generalize product attributes and LCC data from pre-existing LCC studies. Then the product designers query the trained artificial model with new high-level product attribute data to quickly obtain an LCC for a new product concept. Foundations for the learning LCC approach are established, and then an application is provided. 한국정밀공학회 개념 설계 단계에서 인공 신경망을 이용한 제품의 Life Cycle Cost 평가 방법론 A Methodology on Estimating the Product Life Cycle Cost using Artificial Neural Networks in the Conceptual Design Phase Article 2 한국정밀공학회지, v.21, no.9, pp.85 - 94 한국정밀공학회지 21 9 85 94 kci ART001098788 Life Cycle Cost (LCC) Product attribute (제품 속성) Artificial neural networks (인공신경망) Life Cycle Cost (LCC) Product attribute (제품 속성) Artificial neural networks (인공신경망)