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 3 密贴状态下弹性波信号衰减倍数
Tab.3 Attenuation multiple of signal under closely contact
f/kHz A1 A2 A3
2 1.78 21 47
4 12 5.56×102 5.98×102
10 45 3.05×103 5.98×102
30 1.08×104 7.50×106 1.12×107