由中国振动工程学会故障诊断学会举办的第三届全国机械设备故障诊断学术会议于1991年5月28～31日在天津召开。参加会议的代表来自全国各地的工矿企业、大专院校、科研单位,共220余人。本届会议的学术论文分七个专题,共收集论文146篇(表1)。论文的内容,涉及新的诊断理论与方法、专家系统和神经网络。对于信号处理、模式识别、趋势分析、报警标准等,都有 The Third National Symposium on Fault Diagnosis of Machinery and Equipment organized by China Society for Vibration Engineering Society of Fault Diagnosis was held in Tianjin on May 28-31, 1991. Representatives from all over the country from industrial and mining enterprises, tertiary institutions, research institutes, a total of more than 220 people. The current session of the academic thesis consists of seven topics, a total of 146 papers (Table 1). The content of the paper involves new diagnostic theories and methods, expert systems and neural networks. For signal processing, pattern recognition, trend analysis, alarm standards, etc., there