Study on the On-Line Measurement System of Key Components for Shield Machine

As the fault of key components for shield machine caused great economic loss and harmful social effect, An on-line condition monitoring and fault diagnosis system was designed for large-scale engineering machine(shield machine). At first the paper described the object to build remote monitoring center, and then introduced in detail monitoring equipment by machine loaded which consisted of four parts, that was data acquisition & transmission, interface & driver program, database and human-computer interaction. Furthermore, enveloping technology for bearing vibration was described and simulated by Labview software based on experiment data. At last this paper described the construction principle of fault tree(FT).