【作者】 刘茜； 卞学良； 王金刚；

【Author】 Liu Qian Bian Xueliang Wang Jingang (School of Mechanical Engineering Hebei University of Technology Hebei 300130 China)

【机构】 河北工业大学机械学院；

【摘要】 针对某型叉式装卸车液压系统故障概率分布的特点,提出了基于模糊理论的故障树分析方法,设计了液压系统的模糊故障树分析模型和专家系统。重点介绍了模糊故障树的数学机理、专家系统的总体结构和知识的表示方法、推理策略。系统属于基于规则的产生式系统,采用了模块化设计方案,便于管理和维护。将该方法应用于叉车液压系统故障诊断中取得了令人满意的效果。更多还原

【Abstract】 The fault tree analysis method based on the fuzzy theory has been introduced and used in the fault diagnosis to the hydraulic system of the forklift truck.And the fault diagnosis expert system has been designed in this paper.It focused on the theory decision of the fuzzy fault tree,the overall structure of the expert system and the knowledge representation.The system has been adopted with the module design plan and it would be easy to manage and maintain.The fault diagnosis result to the hydraulic system of the forklift truck showed that the method mentioned above was effective and practicable.更多还原