超高速摄影中三面体转镜力学特性的计算机仿真  

Numerical Simulation on Static Property for Rotating Three-faced Mirror of Ultra-High Speed Photography

作　　者：黄虹宾[1] 李景镇[1] 孙凤山[2] 龚向东[1] 艾月霞[1] 

机构地区：[1]深圳大学工程技术学院,深圳518060 [2]中国科学院西安光学精密机械研究所,西安710068

出　　处：《光子学报》2007年第7期1364-1368,共5页Acta Photonica Sinica

基　　金：深圳大学科研启动基金(200504)资助

摘　　要：基于弹性力学空间问题的基本理论与有限元计算技术,建立了转镜力学分析的数值方法,并与四面体钢转镜的计算结果做了对比,表明它能够较为精确地模拟出转镜的强度及其任意点处的位移.利用该方法,计算了目前常用的三面体金属铍转镜和铝合金转镜的稳态强度,得出了转镜镜面变形量及内部应力分布的定量数值.结果表明,金属铍转镜在强度和镜面变形两方面均优于铝合金转镜.A method of computer simulation for the rotating mirror strength of ultra-high speed photography was presented by use of the three-dimensional elastic mechanics and finite element method, and was proved thruogh the experimental results of rotating two-faced steel mirror. The three-faced aluminus and beryllium mirrors were calculated, and the stress distritution and surface deformation were gained： the surface deformation of aluminum mirror is on micron order and that of beryllium is on twentieth micron order, and the maximum stress of aluminum mirror is double that of beryllium.

关 键 词：超高速摄影 转镜 弹性力学空间问题 有限元技术 应力分布及镜面变形 数值模拟 

分 类 号：TB872[一般工业技术—摄影技术]