用风险及模糊理论对设备选型专家系统的改进

将模糊理论引入了工作面设备选型专家系统，构建了工作面设备选型模糊专家系统，并进一步研究了风险决策在该系统中的应用。     

专家系统技术在采煤决策及设备选型的应用

专家系统的研究越来越受到人们的重视，它在综合机械化采煤中的应用刚刚起步，文章详细地论述了ＺＪＸＴ系统的知识获取与知识库构造，推理机的特点及系统的功能。     

综采工作面设备配套选型专家系统

为使设备配套选型合理，应用专家系统的理论和思想，结合计算机技术，对综采工作面设备选型和配套进行研究，开发设计的ＤＨＦＥＳ系统实现了设备选型和配套的科学化和智能化。     

采煤工作面设备科学选型专家系统开发工具（CLES）

采煤工作面设备科学选型是近年来受国内外重视的研究课题。本文介绍了采煤工作面设备科学选型专家系统开发工具（ＣＬＥＳ）的结构、程序设计方法、知识表示结构、推理机制、人机接口和实例研究等，最后总结了ＣＬＥＳ的优点。     

工作面采煤工艺选择及设备配套选型决策支持系统的研究

本文应用决策支持系统的有关理论和方法,论述了煤层地质条件开采工艺性评价过程及评价指标,建立了煤层地质开采工艺性综合评价模型,。在对采煤工作面生产过程进行大量的数据统计和实测的基础上,对工作面各生产环节进行了系统分析,找出其分布规律,建立了采煤工作面计算机模拟模型。应用ES并结合采煤工作面设备配套选型公式,实现了对其设备的配套选型。研制的决策支持系统软件是采用模块化思路编程的。     

分层综采低位放顶煤工作面设备选型配套方案

倾斜综采放顶煤技术是我矿区首次采用的采煤方法。通过对工作面采煤机、液压支架、刮板输送机、转载机、输送机、破碎机等设备进行科学计算、选型，达到装备高产高效综采工作面的目的。     

综放工作面设备配套选型专家系统

介绍了综放工作面设备配套专家系统的组成模块及其特点,采煤设备的选型原则汇总和三机配套选型原则;分析了知识表达方式以及本课题采用的表达方式;总结了专家系统知识库建立的基本步骤,并举例分析。     

浅谈综采工作面设备配套选型

结合煤矿机电工作综采设备的配套经验,以实际应用为基础,提出了中厚煤层综合机械化采煤设备的配套方法、选型原则、计算方法、依据,具有一定的参考价值。     

采煤方法选择与配套设备选型专家系统研发

在工作面顶底板及围岩可控程度分类最新研究结果的基础上,结合放顶煤开采各影响因素分级评分、重要性系数专家知识库,利用模糊数学积分评判原理,实现了针对某一特定地质条件以综放开采为核心的采煤方法优化,研究开发了既能满足煤层客观开采条件又能充分考虑人为等不确定因素影响的配套设备选型专家系统软件。     

Applications of expert systems in equipment selection for surface mine design

ABSTRACT

The MINDER system (MINe Design using Expert Reasoning), has been developed to a prototype level in the Department of Mining Engineering, University of Nottingham. The Xi-Plus shell system has been used to create a multi-level expert system capable of accessing and controlling both commercially available mine planning software and 'in-house' programs. The expert system is used primarily for surface mining method selection and excavation and haulage equipment selection. Methods of storing knowledge, interrogating and controlling external programs, and reaching conclusions using multiple knowledgebases have been discussed in previous papers by the authors, and will be dealt with only briefly in this paper. This paper concentrates on the methods used to rank equipment, including relational operations (both with the knowledgebase and in external databases) and fuzzy logic techniques. The paper will include an example of the ranking of hydraulic excavators under UK surface coal mining conditions.     

An equipment selection and cost analysis system for openpit coal mines

Abstract

Turkish Coal Enterprises (TKI) is the largest coal producer of Turkey, The majority of coal stripping is done by private contractors and the decision for a contractual agreement is dictated by two relevant problems. The first problem is selection of size, type and number of major equipment that would yield the minimum unit cost for a stripping job. The second problem requires determining whether the given stripping job can be completed by the due date using whatever equipment is available to the contractor. The latter case considers the situation where the contractor's equipment is not the optimum but the job can still be finished with less profit. Two optimization models are developed to overcome these problems. To establish efficient and practical criteria for the selection of excavation method, an extensive study is carried out in the surface coal mines of Turkish Coal Enterprises and the diggability classification developed as a result of this study is the basis of the models. The first model is the equipment selection model that aims to select the equipment fleet minimizing the unit stripping cost. The second model is the equipment evaluation model that aims to maximize the production done with a given equipment fleet. The models assume that the stripping is done by excavator-truck system. Besides the loading-hauling operations, material preparation and the activities required in the dump area are also handled by the models in order to evaluate the overburden removal operation as a whole.     

基于模糊与综合的汽轮机故障诊断专家系统

介绍国内外汽轮机故障诊断专家系统的发展情况 ,针对国内小型汽轮机的现实情况 ,提出了一种新的基于模糊与综合的离线式汽轮机故障诊断专家系统。重点介绍了基于模糊诊断的推理和专家系统知识的自学习方法     

薄煤层开采设备选型配套研究

工作面生产系统的可靠性,不但要求单机设备要先进可靠,而且要求各设备之间的配套合理,特别是对于薄煤层工作面的复杂条件,要求整个工作面系统的配套更可靠。针对薄煤层工作面的复杂地质条件,在综采设备选型原则的基础上,对主要设备选型进行了分析和计算,为类似薄煤层工作面的综采化提供了参考。     

基于模糊逻辑的液压卷扬机故障诊断专家系统

针对大中型企业液压卷扬机出现的各种故障及征兆 ,基于模糊逻辑方法 ,采用Turbo-Prolog语言编程 ,重点讨论了专家系统知识库的设计 ,建立了一个诊断专家系统的推理机 ,采用正向推理进行诊断 ,并用路径跟踪法进行了解释。     

Assessment of expert fuzzy controllers for conventional flotation plants

Many undesirable dynamic characteristics are present in conventional flotation plants that hinder the design and implementation of control systems. New expert and fuzzy control strategies for these processes are presented and assessed here via simulation. The algorithms are based on previous work, and they emulate current operating practices in an active copper flotation plant in Chile. The new controllers were able to achieve high recoveries and also avoid control saturation despite severe disturbances in the feed flowrate.     

胶带道选择的多目标决策

方案决策是典型的多目标决策问题,介绍了方案决策的各种评价指标,并运用熵法求出了各指标的权重,最后用Topsis方法完成了各方案的择优排序,并结合应用介绍了该模型的评价方法。     

基于知识的球磨机选型专家系统的研究

针对球磨机以往设计需要依赖专家经验进行的弊端,将专家系统原理和实例推理技术应用于粉磨系统的选型中,以提高选型设计的效率。文章介绍了球磨机选型系统的结构、知识库组成、推理技术及开发工具。