深圳大学学报（理工版）2012，Vol.29Issue(4)：304-310,7.DOI:10.3724/SP.J.1249.2012.04304
基于拓扑理论的超高速摄影仪转镜结构设计
Structure design of rotating mirror based on the topology optimization theory for ultra-high speed camera
摘要
Abstract
The material interpolation model and structure topology description model of rotating mirror is presented based on the topology optimization of continuum structure, and the single modality interpolation model with topology optimization of solid isotropic microstructures with penalization of rotating mirror is established by the finite element method. Based on this, the maximum dynamic stiffness topology optimization of rotating mirror is achieved to optimize the first natural frequency and to obtain the pseudo-density distribution chart. The original rotating mirror was modified based on the pseudo-density distribution chart. The numerical analysis and experiment of model about the two rotating mirrors are conducted to examine the results of topology optimization analysis. The results show that the first model of the new rotating mirror is improved from 713. 6 Hz to 821. 4 Hz, the second one increases by 48% and the third one increases by 50%. The natural frequencies of other models are significantly improved. The results from both the numerical analysis and experiment are consistent under the margin of error, showing a new view for improving the dynamic characteristic of rotating mirror effectively.关键词
光学工程/高速摄影/超高速摄影仪/转镜/拓扑优化/动刚度/变密度法/模态分析/惩罚因子Key words
optical engineering/ high speed photography/ ultra-high speed camera/ rotating mirror/ topology optimization/ dynamic stiffness/ variable density method/ modal analygys/ penalty factor分类
通用工业技术引用本文复制引用
李春波,余春晖,李景镇,柴金龙,刘春平,凌中水,黄虹宾..基于拓扑理论的超高速摄影仪转镜结构设计[J].深圳大学学报（理工版）,2012,29(4):304-310,7.基金项目
国家自然科学基金资助项目(60978039) （60978039）
