标题： 用于小行星探测器/SSB焦平面组件的创新概念 显示英文标题

标题： An innovative concept for the AsteroidFinder/SSB focal plane assembly

摘要： 本文总结了AsteroidFinder/SSB焦平面组件的系统概念和设计，这是一项目前正在德国航空航天中心（DLR）开发的小型卫星任务。 根据仪器和航天器的要求，已经开发出一种无热设计概念。 导致这种方法的关键方面包括机械望远镜接口的权衡研究、电气和热接口的定义以及选择能最小化热致应力的材料。 作为一项创新，结构将采用可加工的AlN-BN复合陶瓷制造。 为了实现快速的设计迭代和开发，采用了一种集成建模方法，对所提出的概念进行热-机械分析，以证明其可行性。 各种负载情况下的稳态温度分布以及组件内的应力和应变均通过有限元仿真计算得出。 显示英文摘要

摘要： This paper gives a summary on the system concept and design of the focal plane assembly of AsteroidFinder/SSB, a small satellite mission which is currently under development at the German Aerospace Center (DLR). An athermal design concept has been developed in accordance to the requirements of the instrument and spacecraft. Key aspects leading to this approach have been a trade-off study of the mechanical telescope interface, the definition of electrical and thermal interfaces and a material selection which minimizes thermally induced stresses. As a novelty, the structure will be manufactured from a machinable AlN-BN composite ceramic. To enable rapid design iterations and development, an integrated modeling approach has been used to conduct a thermo-mechanical analysis of the proposed concept in order to prove its feasibility. The steady-state temperature distribution for various load cases and the resulting stress and strain within the assembly have both been computed using a finite element simulation.