Development and application of LSP micro shock driver

LSP微震驱动器的研制与应用

基本信息

批准号：
18560153
负责人：
HIRAHARA Hiroyuki
金额：
$ 2.49万
依托单位：
Saitama University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560153/
关键词：
Micro shock wave Laser irradiation Optical measurement Metal ablation plasma Self similar Energy conversion coe3fficient Laser shock peening 圧縮・非圧縮流衝撃波マイクロ流れピーニングマイクロデバイス

项目摘要

When we irradiated a laser on the solid surface (a surface of metal), a solid is excited by light energy of a laser and plasma will be induced at the surface, so as a result, a shock wave is formed in an ambient gas by plasma. The present study performed a study to utilize this shock wave effectively. We performed an experiment measurement of a shock wave to occur by collection of light of a laser. The shock wave generated it by irradiating a laser to various kinds of metal plates. I used aluminum, stainless steel, brass, titanium for a metal plate. We performed an experiment the limit around that shock wave outbreak was confirmed for 2006 having enforced the irradiation strength with comparatively big energy strength in 2007 laser. With this strength, I observed a shock wave or a state to occur by shadow graphology and BOS method optically in an observation domain of 1mm around * 1mm and demanded a time change of a Mach number of a shock wave. The measurement of a shock wave demanded a position of a shock wave every 20 ns. Measurement range several of this case were full of the measurement neighbor by a unit of ten μm, difficulty, but reliable data were acquired by many experiment accomplishment. I was located between spread characteristics of a spherical surface wave and plane wave when it pursued the degree for a function of time by position data of a provided shock wave, and it became clear to be considerably near in a spread characteristic of a spherical surface wave. A Mach number just after shock wave outbreak was considerable high speed, and it was shown that a thing of around 15 was provided in a Mach number. A Mach number of a shock wave did not show dependence for metal properties of matter, and the result that was against an original prediction was provided.

当我们在固体表面（金属表面）上辐射激光时，固体会因激光的光能而激发，并且血浆将在表面诱导，因此，由于血浆在环境气体中形成了冲击波。本研究进行了一项研究，以有效利用此冲击波。我们通过收集激光的光进行了一次冲击波的实验测量。冲击波通过将激光照射到各种金属板中产生。我将铝，不锈钢，黄铜，钛用于金属板。我们进行了一个实验，围绕2006年的冲击波爆发的极限已证实，在2007年激光器中，具有相对较大的能量强度实现了辐射强度。有了这种强度，我观察到冲击波或状态通过阴影图形和BOS方法在 * 1mm左右的1mm观察域中光学地进行，并要求将冲击波的马赫数变化。冲击波的测量要求每20 ns一次冲击波的位置。测量范围的几个情况都充满了测量邻域，该单位是十μM的单位，难度，但许多实验成就获得了可靠的数据。当我通过提供的冲击波的位置数据来追求时间的函数时，我位于球形表面波和平面波的扩散特征之间，很明显，在球形表面波的扩散特征中要考虑到附近。冲击波爆发后的一个马赫数是相当高的高速，这表明在马赫数中提供了约15件。马赫数量的冲击波并未显示出物质金属特性的依赖性，并且提供了与原始预测相反的结果。