Experimental platform for testing glass fiber reinforced resin matrix composite material by lightning stroke

Abstract

The invention relates to the field of lightning stroke experiments and especially relates to an experimental platform for testing a glass fiber reinforced resin matrix composite material by lightningstroke. The experimental platform comprises an impact current generator, an insulating support, a drainage device, a grounding loop and a sample monitoring device. The impact current generator comprises a charging module, an energy storage module, a triggering module, a waveform adjusting module and a measurement and control module. Problems that in existing domestic and overseas standards, thereis no provision of experimental devices of a lightning stroke glass fiber reinforced resin matrix composite material GFRP, and lightning stroke laboratories are difficult to carry out related test services for test requirements are solved. A lightning stroke current with an adjustable waveform and amplitude is generated through the impulse current generator, an experiment can be performed according to an expected lightning current of a sample installation position, the requirements for the waveform and amplitude in a lightning current test are thoroughly met, and consistency of the experimentand a real lightning stroke condition is greatly improved.

Description

technical field [0001] The invention relates to the field of lightning strike experiments, in particular to an experimental platform for lightning strike testing of glass fiber reinforced resin-based composite materials. Background technique [0002] Lightning poses a serious threat to structures / buildings on the ground. With the vigorous development of renewable energy in recent years, the demand for more efficient wind power generation and manufacturing technology has grown rapidly, causing the size of wind turbines worldwide to continue to increase. Increased blade tip heights and the tendency for wind farms to be placed offshore have increased the risk of wind turbines being struck by lightning. The blades of the fan are struck by lightning, and maintenance and replacement will result in long downtime and expensive economic losses. Especially in recent years, a large number of glass fiber reinforced resin-based composite materials GFRP with poor electrical conductivity...

AI Technical Summary

Problems solved by technology

[0003] The current domestic and foreign standards do not have regulations on the experimental device for lightning strike glass fiber reinforced resin matrix composite material GFRP, and it is difficult for the lightning strike laboratory to carry out relevant testing services in the face of testing requirements.

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