南极内陆精密仪器运输减振设计与测试  

Vibration attenuation design and test for precise instruments during antarctic inland transport

作　　者：温海焜[1,2] 宫雪非[1,2] 杜福嘉[1,2] 李正阳[1,2] 张如[1,2] 

机构地区：[1]中国科学院国家天文台南京天文光学技术研究所,南京210042 [2]中国科学院天文光学技术重点实验室,南京210042

出　　处：《振动与冲击》2015年第24期98-103,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金资助(11103052)

摘　　要：Dome A是南极冰盖的最高点,由于其海拔高度高和温度低,天文学家预计其将是地球上最好的天文台址之一,南极Dome A将为天文观测提供一个绝佳的窗口。但仪器设备需要从中山站通过雪橇长途运输运至Dome A,道路异常恶劣。基于南极巡天望远镜的改正镜系统,设计了一套适合南极Dome A运输的精密仪器减振系统。首先介绍了Dome A的道路冲击振动实测结果,包括对振动和冲击加速度时域和频域信号的分析,其次对改正镜系统进行了动力学分析,再次根据南极Dome A运输道路的特点完成了减振系统的设计和制作,并对减振系统进行了动力学模拟分析。最后通过在南极实测的数据对比,验证了减振系统有效性。Dome A is the highest location in the Antarctic inland. Due to the high altitude and the low temperature,it is considered as one of the best locations for astronomy observation. But the relevant instruments need be transported from Zhong Shan station to Dome A by sledge for a long distance trip,moreover the road status is very bad. For the sake of transporting the corrector mirror system of the Antarctic Survey telescope,a vibration attenuation way to transport precise instruments to Dome A was designed. The field measurement data of the vibration and shock acceleration on the road to Dome A were introdaced, including the time histories and the frequency spectra of the vibration acceleration. A dynamic analysis on the corrector mirror of the telescope was carried out. The vibration attenuation design was put forward and the modal,analysis of the corrector mirror system was presented. According to the data measured on the spot in the Antarctic,the effectiveness of the vibration attenuation system was tested.

关 键 词：改正镜 减振设计 南极 

分 类 号：TB485.1[一般工业技术—包装工程]