摘要
在傅里叶变换光谱仪研制中,基于迈克尔逊干涉仪的动镜机构研制是技术难点之一,而柔性铰链机构则是动镜机构的核心部分。利用简单的平行两杆机构为基体进行复杂化设计,得出一种新型柔性铰链机构并对其进行原理分析,利用有限元分析软件Patran和Nastran对其进行模拟计算,并和传统的平行两杆机构理论计算结果进行分析比较。结果表明,新型柔性铰链机构不仅使动镜的垂直耦合位移量缩小到原来的1.4%,而且将动镜的运动自由度有效地降至一维,为后续研究者提供参考。
The research on the mechanism of moving mirrors based on Michelson interferometer is one of the technical difficulties in the whole research process of Fourier-transform spectrometer,in which case flexible mechanism is considered as a critical component of moving mirror.On the basis of parallelogram flexible mechanism,a kind of complexity design was conducted and a novel flexible mechanism was created.In addition,the principle of its mechanism was analyzed by simulation softwares such as finite element analysis software Patran and Nastran.The corresponding results were compared with those from traditional theoretical calculation of parallel double rod mechanism.The final results show that this novel flexible mechanism can not only decrease its vertical coupling displacement of the moving mirror to 1.4 percent of its original amount,but also be capable of reducing the dimension of freedom（DOF） of the moving mirror to one dimension effectively,which provides valuable conclusion for the coming researchers.
出处
《红外与激光工程》
EI
CSCD
北大核心
2012年第1期184-189,共6页
Infrared and Laser Engineering
基金
国家自然科学基金(60538020)
中国科学院创新工程
关键词
红外傅里叶变换光谱仪
动镜支撑机构
耦合位移
柔性铰链
有限元分析
Fourier-transform infrared spectrometer
mechanism of moving mirrors
coupling displacement
flexible hinge
finite element analysis
