干涉式大气垂直探测仪支撑面弹簧缝形的优化设计  

Design Optimization of the Slit-Shape of Bearing Diaphragm Flexures in Atmospheric Sounding Interferometer

作　　者：陶津平[1] 华建文[1] 代作晓[1] 王模昌[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《红外技术》2004年第6期22-26,共5页Infrared Technology

摘　　要：通过对面弹簧进行有限元分析计算,得到螺旋线缝形面弹簧各参数 r0、a、θ1、b 在轴向拉伸不同位置时,对其轴向刚度 Kx、径向刚度 Ky、刚度比 i(i=Ky/Kx)的影响规律,从中可以选取一组合理的参数值,使面弹簧轴向刚度 Kx小、而使径向刚度 Ky大、刚度比 i 大、环境适应性最强的面弹簧。有限元分析方法为设计满足要求的面弹簧,提供了理论基础。Atmospheric sounding interferometer is an important infrared remote sensing instrument. It can provide infrared spectra of the Earth atmosphere with high sensitivity, high spectral resolution and various spectral bands. Useful information about the atmosphere status such as temperature profiles and humidity profiles is drawn from the infrared spectra to predict weather change. Precision linear motion of the moving-mirror in the interferometer is important to the performance of the atmospheric sounding instruments, Diaphragm flexures in the moving-mirror linear driving subsystem are a crucial element. Therefore, the systematic study on diaphragm flexures is essential. Employing finite element analysis of bearing diaphragm flexures in Atmospheric Sounding Interferometer, we can find rules of diaphragm flexures’ axial stiffness coefficient Kx, radial stiffness coefficient Ky and their ratio i depended on slit patterns and parameters r0、a、θ1、b of the spiral-slit. Interferometers require that the flexures have such properties as small Kx in axial direction, large Ky and I size. By optimization approaches, these requirements are satisfied. Finite element analysis of bearing diaphragm flexures provides sufficient theoretical foundation for the design of diaphragm flexures.

关 键 词：刚度比 支撑 轴向刚度 轴向拉伸 优化设计 有限元分析方法 计算 弹簧 干涉 螺旋线 

分 类 号：TN124[电子电信—物理电子学] TU473[建筑科学—结构工程]