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RP process selection method combined with qualitative analysis and quantitative computation by using computer

A qualitative analysis and quantitative calculation technology, applied in the field of RP process selection, can solve problems such as dimensionality, unit inconsistency, fuzzy uncertainty, etc.

Inactive Publication Date: 2007-07-11
SHANDONG UNIV
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Problems solved by technology

These factors are both qualitative and quantitative; different factors have different influences on the selection of RP production equipment; and most of the factors are vague and uncertain; many evaluation indicators are interdependent and contradictory, and each indicator The dimension and unit of the value are often not uniform, and there are both cost-type attribute indicators and benefit-type attribute indicators; the advantages and disadvantages of various RP production equipment under a certain evaluation factor are relative, and there is no clear boundary , there is ambiguity, which determines that the quality of a scheme cannot be directly determined by the size of a certain index

Method used

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  • RP process selection method combined with qualitative analysis and quantitative computation by using computer
  • RP process selection method combined with qualitative analysis and quantitative computation by using computer
  • RP process selection method combined with qualitative analysis and quantitative computation by using computer

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Embodiment Construction

[0042] In Figure 1, in order to identify and determine the evaluation criteria for RP production equipment selection, we conducted extensive and in-depth questionnaire surveys to RP equipment service providers and RP users, and obtained a large amount of original information. Based on the collected original information and according to the above Principles systematically analyze and rationally synthesize the influencing factors of RP equipment and technology, and use the analytic hierarchy process to propose and establish a multi-factor and multi-level comprehensive evaluation model for RP production equipment. The whole RP production equipment selection decision-making hierarchy model is divided into four layers. The highest layer is the target layer, which determines the most suitable RP production equipment according to the needs of users; the lowest layer is the solution layer, including all candidate RP production equipment; the middle two layers are the decision criterion...

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Abstract

A RP process selection is a combination of qualitative and quantitative computation of computers. The process adopts qualitative and quantitative combined method to decide the proper RP manufacturing equipment based on specific requirement of RP customer. Firstly, it gets RP manufacturing equipment candidate plan based on computer assisted qualitative system based on expert system, then deciding the most proper RP process using fuzzy synthetic judgment assisted with qualitative analysis. The obvious feature of this method is the combination of qualitative analysis and quantitative computation, with more reliable and accurate RP manufacturing equipment. It can also be used to other process plan, plan selection, material selection and so on, providing a relatively ideal solution.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology, relates to rapid prototyping (RP), expert system and fuzzy comprehensive evaluation technology, in particular to an RP process selection method combining qualitative analysis and quantitative calculation by using a computer. Background technique [0002] In the rapid development of new products, the use of RP technology can shorten the product development cycle and reduce manufacturing costs. However, only by selecting the most suitable RP production equipment according to the specific manufacturing task requirements of different users, can the advantages of RP technology be fully utilized. However, due to the wide variety of RP equipment and processes; each RP equipment and process has its own characteristics and scope of application; the diversity of RP and subsequent RT process combinations. Therefore, for most RP users, it is particularly difficult to choose suitable RP produ...

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Application Information

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IPC IPC(8): G06F17/50G06F17/00G06F19/00
Inventor 兰红波
Owner SHANDONG UNIV