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题名	TMA空间相机连接可靠性设计
作者	邓平
学位类别	硕士
答辩日期	2015-05
授予单位	中国科学院大学
导师	任建岳
关键词	TMA空间相机 材料参数 热适应 柔性铰链 螺栓预紧力
其他题名	TMA space camera connection reliability design
学位专业	机械制造及其自动化
中文摘要	随着遥感技术的应用范围不断拓展，应用水平不断提高，广泛应用于国家 安全，天文探测，气象预报，检测和环境灾难，地球资源勘探，测绘摄影，海 洋研究，城市建设，农业发展，目标和目标制定等方面。航空航天遥感技术， 越来越能测量一个国家重要的科学和技术发展水平。 对于空间相机而言，光学系统能够在地面试验状态、发射状态、在轨飞行 状态下都能保持精度稳定，是满足成像的基本要求。相机在从地面到太空的过 程中，需要经历重力、温度、气压、辐射等多种环境因素的变化，而这些因素 都可能导致空间相机分辨率下降、像质变坏、功能失效甚至系统破坏。 随着观测需求的不断提高，人们对光电系统的口径要求越来越大，系统越 来越复杂，同时相机设计寿命也越来越高，这对相机稳定性提出了更高要求。 本文主要为提高TMA 空间相机在轨稳定性开展了以下几个方面的研究工 作： 1、论述了TMA 空间相机发展趋势和当前发展水平，介绍其工作原理和基本 结构； 2、讨论反射镜背部支撑衬套的热胀系数与镜面面形在温变工况下的关系， 提出衬套热胀系数选择方法；讨论反射镜背部柔性连接件弹性模量与镜面面形 在温变工况下的关系，提出柔性连接件尺寸选择方法； 3、针对反射镜支撑孔附近在温变工况下较大的局部面形误差，设计出增大 径向柔度的新柔性连接件，在保证重力工况和动态特性的前提下提高温度适应 性；4、针对相机结构上多用螺栓连接，研究螺栓预紧力对动态特性的影响。 关键词：TMA 空间相机；材料参数；热适应；柔性铰链；螺栓预紧
英文摘要	With the application of aerospace remote sensing technology continues to expand, and continuously improve the level of application, widely used in national security, astronomical exploration, weather forecasting, environmental and disaster detection, earth resource exploration, photography mapping, marine research, urban construction, agricultural development and target and other aspects of the guidelines. Aerospace remote sensing technology to measure the level of a country's scientific and technological development of important yardstick. For space camera, the optical system can test the ground state, emitting state in track flight status can maintain accuracy and stability, is to meet the basic requirements for imaging. Cameras in the process from the ground to space, you need to change a variety of environmental factors experienced gravity, temperature, pressure, radiation, etc., and these factors may result in decreased spatial resolution camera, like a bad qualitative, functional failures and even system damage. With the continuous development of optical technology, people have become increasingly demanding caliber large photovoltaic systems, systems become more complex, while also increasing the design life ofthe camera, which put forward higher requirements for stability. In this paper, in order to improve the stability of TMA space camera in-orbit research work carried out the following aspects: 1 discusses the TMA space camera current levels and trends of development, introduced its working principle and the basic structure; 2, to discuss the mirror back support sleeve thermal expansion coefficient and mirror surface temperature change in the conditions of the relationship between the proposed liner thermal expansion coefficient selection method; discussion mirrors back the elastic modulus of the flexible connection with mirror surface in conditions of the relationship between temperature change, proposed flexible connection size selection method; 3, for the mirror support near the hole in the large local temperature change conditions surface error, designed to increase new flexible connectors radial flexibility, improve temperature adaptation in ensuring the gravity conditions and dynamic characteristics of the premise sex; 4, the structure for multi-camera bolted to study the effects of bolt preload dynamic characteristics.
公开日期	2015-12-24
内容类型	学位论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/48832]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出
推荐引用方式 GB/T 7714	邓平. TMA空间相机连接可靠性设计[D]. 中国科学院大学. 2015.

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