飞机静电放电器静电泄放性能研究
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摘要
飞机静电放电器用于泄放飞机沉积静电,降低飞机沉积静电危害,其静电泄放性能关系飞机沉积静电防护的效果。放电器静电泄放性能研究,能指导放电器放电特性设计和试验,并加深对尖端电晕放电特性的认识。采用美军标推荐的试验方法,对某型后缘型复合材料飞机放电器进行了静电泄放能力研究。结果表明,放电电流—电压函数关系存在显著阈值特性,并在放电区符合抛物线关系;且负极性阈值为20.4kV,正极性阈值为24.5kV。依测量结果,在负放电电压下,当电压为40kV时,该放电器泄放电流为20.9μA;当电压为50kV时,泄放电流达到了45μA;泄放电流在40kV时大于10μA,表明该放电器满足了静电泄放的指标要求。
Aircraft static discharger is used to release precipitation electrostatic and reduce the hazard of aircraft electrostatic.The discharge performance of electrostatic discharge is crucial for precipitation electrostatic protection.The research ondischarge performance of discharger is helpful for carrying static discharge design and test,and also is useful for understanding the discharge and corona characteristics of point.According to the testing method described in American military standard,the discharge performance research of one kind of composite trailing edge discharger has been conducted.The result indicates that the discharge current-voltage function satisfies parabolic relation in range of discharging,while the threshold effect is significant.The negative polarity threshold is 20.4kV meanwhile the positive polarity threshold is 24.5kV.Based upon the testing,the release current is 20.9μA when applying negative voltage of 40kV,and the current reaches 45μA when applying voltage of 50kV.The result that the release current is larger than 10μA at 40kV indicates the researched discharger satisfies the specification requirement of discharge current.
引文
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