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Structural Health Monitoring System for the Crane Based on Bragg Grating Sensors

The crane is an important industrial equipment. With rapid economic development and urgent industry needs in our country, the crane tends to be large-scale, high parameters and high risk. Therefore, it is of great concern to us that how to maintain the safety of the crane. The paper develops a set of health monitoring and diagnosis system for the crane based on bragg grating sensors. In the system, the fiber grating strain sensors are emplaced in key parts of the crane. Through collecting and analyzing of the strain signals, we can real-time understand the safety condition of the crane. Compared with the original strain measurement technology, The system makes the data collection more reliable, safe and convenient. In addition, the theory of fatigue cumulative damage is applied in analyzing the strain monitoring data, which can make us to timely know the structural damage. The system can realize long term strain monitoring and reduce the risk of accidents of the crane greatly.