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状态监测就是对零件、部件或整台机器的工作状态进行监测,根据监测的结果来判断它是正常还是异常。诊断技术则要根据较长时间的记录进一步对机器故障的部位、原因及程度作出识别和估计。广义地说,状态监测和故障诊断早就为人们所应用,不过,一般多局限于主观监测的范围,即我们经常所说的看、听、摸、嗅。这些方法随着各人的经验不同,对同一现象往往作出不同的解释。有的设备上已有一些仪表监测如温度、压力、电压、电流、转速、液位……一般较简单,在发生异常时,对于故障的原因、部位、程度和发展趋势不易作出准确的诊断,在很大程度上也取决于诊断人员的经验。随着工业生产的大型化、连续化、
Condition monitoring is to monitor the working status of parts, components or the entire machine, and to judge whether it is normal or abnormal according to the result of monitoring. Diagnostic techniques are based on a longer time record to further identify the machine fault location, causes and degree of recognition. Broadly speaking, condition monitoring and fault diagnosis have long been used by people. However, most of them are usually limited to subjective monitoring, that is, what we often say, listen, touch and smell. These methods differ from experience to experience and often make different interpretations of the same phenomenon. Some instruments have been monitoring some of the instruments such as temperature, pressure, voltage, current, speed, level ... ... generally simple, in the event of an exception, the cause of the fault, location, extent and trend of development is not easy to make accurate diagnosis, To a large extent, it also depends on the experience of the diagnosticians. With the industrialization of large-scale, continuous,