IMECH-IR  > 流固耦合系统力学重点实验室
Alternative TitleVelocity measurement of back-free the surface of target after laser shock peening using all-fiber photonic Doppler velocimetry
王健; 吴重庆; 宋宏伟; 于涛; 许静静; 王健, 北京交通大学
Source Publication红外与激光工程
Abstract用现有的光纤通信器件,搭建了全光纤光子多普勒速度测量(Photonic Doppler Velocimetry,PDV)系统;用PDV系统测量了激光冲击强化(Laser Shocking Peening,LSP)靶背面自由表面速度。提出了一种称为微分法的新的PDV数据处理方法,并证明了与传统条纹法相比,在相同的硬件条件下,不但提高了测量精度,而且扩大了测量范围。用微分法对LSP实验中的测量数据进行了处理,实现了运动初始阶段自由表面瞬时速度的精确测量,因此微分法对冲击波与轰爆波中瞬态加速过程的数据处理特别适用。
Other AbstractAn all-fiber photonic Doppler velocimetry (PDV) system was assembled by using the optical fiber components available in the telecommunication industry. Using the PDV system, the velocity of back-free surface of target after laser shock peening (LSP) was measured. A new data processing method about PDV, called the differential method, was proposed. Compared with the traditional fringe method, it was proved that the differential method could improve measurement accuracy and extend measurement range using the same hardwares. The experimental data in LSP was processed using the differential method, and measurements of instantaneous velocity of back-free surface in the initial motion stage were performed. So the differential method is particularly suitable for the data processing about the transient acceleration process of shock waves and detonation waves.
Keyword测量 背面自由表面速度 激光冲击强化 全光纤光子多普勒测速 微分法 条纹法
Subject Area冲击动力学
Indexed ByCSCD ; EI
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Document Type期刊论文
Corresponding Author王健, 北京交通大学
Recommended Citation
GB/T 7714
王健,吴重庆,宋宏伟,等. 激光冲击强化靶背面自由表面速度的全光纤光子多普勒测速法测量[J]. 红外与激光工程,2012,41(5):1212-1216.
APA 王健,吴重庆,宋宏伟,于涛,许静静,&王健, 北京交通大学.(2012).激光冲击强化靶背面自由表面速度的全光纤光子多普勒测速法测量.红外与激光工程,41(5),1212-1216.
MLA 王健,et al."激光冲击强化靶背面自由表面速度的全光纤光子多普勒测速法测量".红外与激光工程 41.5(2012):1212-1216.
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