关键词: 概念设计, 模型, 广义机械系统

Abstract: Waterfall model, prototyping model and fountain modal were concluded based on current development of conceptual design process. Planar spiral model of conceptual design progress, and spatial spiral model of design scheme generation progress, suitable to computer aided conceptual design were proposed based on current conceptual design progress model. The key problems,including the design requirement of conceptual design process and the establishment of original scheme,were discussed in detail. In design requirement analysis, the condition and relationship of functions were specially emphasized. The function structure establishment and the searching for solution were simultaneously alternately processed, while they were isolated in current research. Finally, above models and thought were proved and illustrated by an actual design case of an oil field machine.

Key words: conceptual design, modeling, generalized mechanical system