基于超声导波的螺栓轴向应力测量方法
杨宇1(
),杨昌群2,赵勃3,4()
),杨昌群2,赵勃3,4()
Measurement method of bolt axial stress based on ultrasonic guided waves
Yu YANG1(),Changqun YANG2,Bo ZHAO3,4()
),Changqun YANG2,Bo ZHAO3,4()
图13. 基于EMD的超声导波回波仿真信号模态分量的频谱图
Fig.13. Spectrum diagram of modal component of ultrasonic guided wave echo simulation signal based on EMD
