动车组故障知识库的研究与设计

动车组的在途紧急故障处理受到地域、时间和人员配备的约束,目前在国内缺少相应的系统为之提供支持.本文介绍知识、知识表示、知识发现等技术,研究、设计动车组故障知识库,通过知识库强大的推理功能,为动车组故障处理提供技术支持.     

Development of a computer-aided process planning system based on a knowledge base

 Process planning for a hull structure defines the assembly sequence of the hull block. Although this activity is very important because the working strategy defines the production costs, to date it has been done manually. To raise the efficiency of this process, we developed a practical computer-aided process planning system. It has been developed using deliverables obtained from advanced computer integrated manufacturing system (CIM; ACIM) for shipbuilding projects sponsored by the Ship and Ocean Foundation (SOF). The system has a knowledge base which contains the know-how of skilled designers as well as design practices, and allows the assembly sequence of hull parts and intermediate products to be defined automatically. The system has been integrated with the shipyard CAD system MATES, and put to practical use. Received: August 19, 2002 / Accepted: November 25, 2002 Address correspondence to: Y. Sasaki (yuuichi_sasaki@mhi.co.jp) Updated from the Japanese original, which won the 2002 SNAJ prize (J Soc Nav Archit Jpn 2001;189:309–315)     

专家系统在路面养护管理中的应用研究及展望

路面的养护管理是公路管理部门的核心工作之一,由于组成路面养护决策诸因素的复杂性,专家知识和工程经验一直都在路面的养护决策中发挥着重要的作用。因此研究开发能够汇集专家知识并模拟专家解决问题过程的路面养护专家系统具有极大的应用价值。本文对过去近20年间国内外开发的主要路面养护管理系统进行了回顾,分析了不同系统的特点及在开发和应用方面存在的不足。最后结合现代人工智能技术的发展现状,提出将来路面养护专家系统的研究方向。     

基于知识融合的船舶能耗决策支持系统

在建立船舶能耗评价模型基础上,针对能耗影响因素众多,提出了基于知识融合的船舶能耗决策支持系统的研究。以船舶能耗为对象,应用系统辨识理论,建立重点设备能耗模型库;以方法、经验和案例为基础,建立船舶能耗知识库;融合模型库、知识库、关系数据库等多源知识,建立船舶能耗评价与决策支持系统。以实现船舶航运管理、船舶操纵控制、航线设计以及船舶设计等各个过程的决策支持。