基于Web的复合材料设计专家系统

通过ASP.NET与SQLServer技术实现了多用户的协作设计,多专家的知识提供,并提供了强有力数据管理及挖掘技术,实现了一个基于Web的复合材料设计专家系统原型.这里,基于可信度的不确定性推理,采用了D-S证据理论,在规则中为每个证据引入加权因子,提出了一个新的多个证据推理机制,使系统实现了具有一定性能的复合材料设计及其典型构件设计,而且,可以反复执行,直到获得比较满意的结果为止,并随着该系统的运行,可不断补充其知识库,使结果趋于完善.

Study on expert system in composite material design based on Web

An expert system prototype for composite material design based on the Web was developed. Benefits include cooperative design for multi-user, knowledges provision of multi-expert, strong data management and technology of relation-type database which are actualized in this system through ASP.NET and SQL Server. With the adoption of D-S proof theory, the inference mechanism works for incertitude based on reliability. Because various proofs have different importance to the conclusion, a proportion factor is introduced to each proof in the regulation. A new theory of multi-proof inference mechanism is also developed.The system can make design scheme for composite material design with definite function and some typical components design. A satisfied result can be gained through reiterative design. The system may be broadened and perfected, and a more perfected result can be obtained through the modification of knowledge bases.