プラットホーム群の先行設計と個別調整設計による製品系列展開とその最適設計に関する研究

概要

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While the product family design has been recognized as an effective concept for flexibly meeting with various customers needs with less cost, its contents depend on kinds of products, business categories, etc. This paper explores its possibility for designing a family of engineering products, such as turbine, pump, the performance of which is pursued for each specification individually. In this paper, their design and development process is recognized as the chain of three phases; product architecture design, anticipatory platform design and scale-based customization for shortening its longer lead time even under smaller total number of production units. A design methodology, which is composed of three procedures; strategic identification of common subsystems and adjustable subsystems, anticipatory design of the former subsystems prior to individual orders, and adjustment design of a latter subsystem for each order, is proposed. Further, an optimization-based design method for the second phase, which is essentially important but complicated among them, is mathematically formulated and proposed. Finally it is applied to a design problem of centrifugal compressors for showing its effectiveness.