Customized machine vibration simulator for employee training at CNNC Tianwan Nuclear Power Plant

The machine vibration simulator is used for employee training at Tianwan Nuclear Power Plant to improve their ability to identify, diagnose, and predict maintenance and repair mechanical failures.

The main components of the test bench include: basic platform, ABB 2.2Kw three-phase asynchronous motor, portable drive electrical box, double span double rotor shaft system, bearing radial loading system, gear transmission system, sliding bearings, rolling bearings, couplings, measurement sensor installation bracket, load system, monitoring system, analysis software, and other necessary accessories.

Multi channel vibration data collector and computer analysis software, including various frequency domain and time domain analysis functions commonly used in vibration signal analysis and processing, such as envelope spectrum and inverse spectrum for rolling bearing analysis, axis trajectory diagram, axis center position diagram, Bode diagram, trend diagram, time waveform diagram for unit use, frequency domain FFT spectrum diagram, order diagram, stacked diagram, waterfall diagram, polar coordinate diagram, and dynamic balance correction function. This test bench is a high-speed rotating test bench, equipped with safety emergency stop function and personnel operation safety protection function. The comprehensive vibration fault simulation test bench for rotating machinery simulates various operating conditions and types of faults by setting different rotation conditions, structural forms, and component defects of the flexible rotor shaft system, and studies the rotor rotation modes Fault response characteristics, dynamic balancing experiments, response characteristics of rotor critical speed, characteristics of the relationship between shaft vibration and bearing vibration, and so on. In nuclear power plants, the operation of mechanical equipment is crucial for nuclear safety. Therefore, it is essential to ensure that employees can correctly handle and repair mechanical failures. The use of simulation test benches can conduct experiments and training on simulated failures, enabling employees to quickly and accurately solve similar problems encountered in practical operations

The simulation experimental platform can also be used to simulate various fault situations, enabling employees to understand the handling methods for different faults. In addition, it can also evaluate employees' job performance to determine whether they are suitable for the corresponding job position. By using the VALENIAN fault simulation test bench, Tianwan Nuclear Power can train employees in the skills and knowledge of handling mechanical faults, improve their work ability and safety.