摘要
激光技术在当今世界正扮演着越来越重要的角色。本文回顾了在众多研究领域对激光烧蚀现象的研究成果,概述了激光武器的原理和特点,并对研究激光烧蚀机理的各种实验方法、理论模型及数值模拟进行了评论与总结。简述了目前在激光烧蚀机理研究中存在的问题及其发展前景。指出目前实验限于结果的规律性总结,要加强对烧蚀机理及其本质的深入探讨;针对不同烧蚀问题所建立的理论模型各不相同,需要提高理论模型的通用性;数值模拟所基于的理论陈旧,对有限元模拟时的边界条件处理不理想。此外,激光烧蚀也是激光推进中的障碍,利用学科交叉有望得到解决。
Nowadays, Laser technology is playing a more and more important role in the world. In this paper, the summary of current achievements of laser ablation in many correlation fields was presented. The principle, features of laser weapons were overviewed. Published experimental evidence, proposed models and numerical simulations were reviewed and critically summarized. The problems and development prospects of laser ablation mechanism were also analyzed. Presently, most experiments focus on the summary of ablation regularity, and mechanism and principle needs to be discussed more deeply. Each theory model is suitable for special situation. Therefore, different theory models should be unified. What is more, most numerical simulations base on the unsuitable theory, and the boundary condition of finite-element method should also be improved.
出处
《失效分析与预防》
2008年第2期58-63,共6页
Failure Analysis and Prevention
基金
国家自然科学基金(10572020)资助项目
关键词
激光烧蚀
激光武器
激光推进
烧蚀机理
laser ablation
laser weapon
laser propulsion
ablation mechanism
