基于弹性波传播的高速道岔尖轨断轨识别
王平,刘乐,胡辰阳,龚政,徐井芒,王智新

Identification of switch rail brakeage in high speed railway turnout based on elastic wave propagation
Ping WANG,Le LIU,Chen-yang HU,Zheng GONG,Jing-mang XU,Zhi-xin WANG
表 2 斥离状态下弹性波信号衰减倍数
Tab.2 Attenuation multiple of signal under repulsion state
f/kHz A1 A2 A3
2 1.92 1.98×109 1.89×109
4 15 1.03×109 2.37×109
10 22 1.43×1010 1.37×1010
30 8.03×103 1.04×1011 4.63×1012