Design of the Space Camera Protection System during Launch Process

IF 1.1 4区工程技术 Q3 ENGINEERING, AEROSPACE

International Journal of Aerospace Engineering Pub Date : 2023-10-12 DOI:10.1155/2023/8827361

Siyu Wang, Haiying Tian, Changxiang Yan

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Abstract

In order to improve the safety and reliability and maintain the stability of imaging quality when a space camera with a cargo spaceship is launched, a protection system for the space camera is designed. Firstly, according to the mechanical properties of the space camera, a working principle of the protection system is elaborated, and a model of the system is proposed. Secondly, a protective cover and a vibration isolation block are designed on the basis of shape, size, and requirements of the space camera. Thirdly, based on the finite element mesh, static and sinusoidal vibration simulation calculations of the space camera and its protection system are carried out. Finally, the protection system is validated after mechanical experiment. The results reveal that the three directional fundamental frequencies of space camera are 43.39 Hz, 26.74 Hz, and 22.83 Hz, respectively, and the maximum response of sinusoidal vibration acceleration is 17.02 g, which is amplified by 3.4 times. The image quality of the space camera lens is consistent before and after the test, which satisfies the requirement of the cargo ship.

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发射过程中空间摄像机防护系统的设计

为了提高货运飞船空间相机发射时的安全性和可靠性，保持成像质量的稳定性，设计了空间相机的防护系统。首先，根据空间相机的力学特性，阐述了保护系统的工作原理，提出了保护系统的模型。其次，根据空间相机的外形、尺寸和要求，设计了防护罩和隔振块。第三，在有限元网格的基础上，对空间相机及其防护系统进行了静振和正弦振动仿真计算。最后，通过力学实验对该保护系统进行了验证。结果表明，空间相机的三个方向基频分别为43.39 Hz、26.74 Hz和22.83 Hz，正弦振动加速度的最大响应为17.02 g，放大了3.4倍。试验前后空间摄像机镜头图像质量基本一致，满足了货运飞船的要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Aerospace Engineering ENGINEERING, AEROSPACE-

CiteScore

2.70

自引率

7.10%

发文量

195

审稿时长

22 weeks

期刊介绍： International Journal of Aerospace Engineering aims to serve the international aerospace engineering community through dissemination of scientific knowledge on practical engineering and design methodologies pertaining to aircraft and space vehicles. Original unpublished manuscripts are solicited on all areas of aerospace engineering including but not limited to: -Mechanics of materials and structures- Aerodynamics and fluid mechanics- Dynamics and control- Aeroacoustics- Aeroelasticity- Propulsion and combustion- Avionics and systems- Flight simulation and mechanics- Unmanned air vehicles (UAVs). Review articles on any of the above topics are also welcome.