| 大口径相机主镜/次镜结构动力减振的研究 |
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| 引用本文： | 丁福建,李英才.大口径相机主镜/次镜结构动力减振的研究[J].光子学报,1999,28(5):458-462. |
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| 作者姓名： | 丁福建 李英才 |
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| 作者单位： | 中国科学院西安光学精密机械研究所,西安,710068 |
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| 摘 要： | 本文对大口径相机结构次镜相对主镜的振动进行了分析,并提出了次镜动力减振的减振方式,且对动力减振系统进行了分析。最后对某相机的动力减振结构进行了优化设计,并计算了一定冲击激励下原结构与带动力减振结构的响应时间历程。结果表明动力减振具有一定的减振效果,对相机高成象质量的保证具有一定的应用意义.
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| 关 键 词： | 振动控制 动力吸振 结构优化设计 大型光学系统 |
| 收稿时间： | 1999-01-22 |
| 修稿时间： | 1999-01-22 |
THE PRIMARY MIRROR/SECONDARY MIRROR VIBRATION ABSORPTION OF LARGE OPTICAL SYSTEM |
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| Ding Fujian,Li Yingcai.THE PRIMARY MIRROR/SECONDARY MIRROR VIBRATION ABSORPTION OF LARGE OPTICAL SYSTEM[J].Acta Photonica Sinica,1999,28(5):458-462. |
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| Authors: | Ding Fujian Li Yingcai |
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| Institution: | Xi′an Institute of Optics and Precision Mechanics, Academia Sinica, Xi′an 710068 |
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| Abstract: | In this paper,the secondary mirror
vibration absorption,a effective way in some cases to control the primary mirror/secondary
mirror vibration,is presented based on the studying on the vibration of the structure of large
optical system.And the vibration suppression effect on the secondary mirror under a wider
frequency range excitation is analysed and the damping ratio is a decisive factor.Then the
optimal design of the structure of a vibation absorber is presented.The absolute amplitudes
nondimensional response of the secondary mirror with a vibration absorber is just one 6th of
the absolute amplitudes nondimensional response of the secondary mirror without vibration
absorber under the same excitation (0.1g shock). |
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| Keywords: | Vibration control Vibration absorption Optimal design of structure Large optical system |
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