Laser Ultrasonic Porcelain Insulator According to Simulation Studies

摘要

This paper first summarizes the laser ultrasonic according to material excitation mechanism of ultrasonic, starting from the thermo elastic mechanism of pulse excitation laser ultrasonic, laser line source as the excitation light source, the thermoelastic mechanism under pulsed laser f as porcelain insulator material on the transient temperature field and displacement field of the finite element numerical simulation. The laser transmission power source too, porcelain insulator surface distribution of transient temperature field and thermal stress caused by the size of the vibration displacement amplitude and changing trends.