A study of the velocity characteristics of cross-hole seismic guided waves;

Simulated visualization of guided wave propagation in pipes;

A model of detection of longitudinal guided waves of pipes based on magnetostrictive effect;

Effects of inner-radius-to-thickness ratio of composite pipes on velocity of guided waves;

Analysis of dispersive characteristics of guided waves for multi-layered structure of solid rocket motor shell;

If the central frequency of source is changed, the displacement magnitudes will vary, which shows that displacements of guided waves depend strongly on the source frequency.

Design and Appalication of stimulant signal generator used for Guide Wave testing;

This instrument integrates signal collection,storage and analysis of guide wave testing with the control of industry control machine and single chip,forming high speed,nicety and facility of using virtual testing instrument by modular software.

Application of transducers in pipes inspection using ultrasonic guided waves;

Measurements of group velocity of ultrasonic guided waves and thickness of material based on Hilbert-Huang transform;

Nondestructive test of ultrasonic guided waves for material damage;