中文摘要：

脉搏激光线来源在柱体和涂的柱体上激动的声学的地的分析模型是 presented.Surface 波浪为有慢涂层的柱体的散行为被分析并且与这分析上的赤裸的 cylinder.Based 的相比，柱体上的圆柱的瑞利波浪和涂的柱体和更高的模式上的使不安的圆柱的瑞利波浪的产生激光的短暂反应用残余理论和快速傅里叶变换技术从模型被计算

英文摘要：

Analytical models of acoustic field excited by a pulsed-laser line source on a cylinder and a coated cylinder were presented. Surface wave dispersive behaviors for a cylinder with a slow coating were analyzed and compared with that of a bare cylinder. Based on this analysis, the laser-generated transient response of the cylindrical Rayleigh wave on cylinder and the perturbed cylindrical Rayleigh wave on coated cylinder and the higher modes were calculated from the models using residue theory and FFT technique. The theoretical results from the superposed waveform of the cylindrical Rayleigh wave and higher modes for both cylinder and coated cylinder agree well with the waveforms obtained from experiment. The transient response of perturbed Raleigh wave on coated cylinder is quite different with cylindrical Rayleigh wave on cylinder because of the guide of surface coating. The results show that the model and numerical method provide a useful technique for quantitatively characterizing coating parameters of coated cylinder by the laser generated surface waves.