激光光源在动光弹法设备中的应用研究  

Experimental study of applying laser source to dynamic photoelastic equipment

作　　者：杨国标[1,2] 朱启荣[1] 倪凡[1] 李松刚[1] 

机构地区：[1]同济大学航空航天与力学学院,上海200092 [2]同济大学国家力学实验教学示范中心,上海200092

出　　处：《实验技术与管理》2010年第12期66-68,72,共4页Experimental Technology and Management

基　　金：国家自然科学基金资助项目(10972160);上海市重点学科建设项目资助(B302)

摘　　要：动光弹法是研究物体动态响应的一种重要方法,可以进行模拟试验,可对关键部位的动态应力特征、动应力集中等进行较仔细的分析和方案比较。以往动光弹试验系统采用多火花式动光弹仪,其光源系统和数据采集系统较为复杂,不易操作。为此,研制了一种新型动光弹实验系统,将激光光源技术首次应用到动光弹实验中,并取得了较好效果。Dynamic photoelastic method is an important way of studying object＇s dynamic response.It can be used to simulate test,analyse the dynamic stress characteristics and the dynamic stress concentration of the key parts,and check plan.The light source system and date acquisition of the traditional multiple electric-spark dynamic photoelectric experimental device are complicated,and they are hard to be operated.This paper developed a new dynamic photoelastic experimental system,and the laser technology was first applied to the dynamic photoelastic experiment and achieved good results.

关 键 词：动光弹法 应力波 激光光源 抗冲击 

分 类 号：O348.1[理学—固体力学]