Numerical prediction on static and dynamic properties for rotating mirror of ultra-high-speed photography

Hongbin Huang; Jingzhen Li; Xiangdong Gong; Fengshan Sun; Tiefeng He

doi:10.1117/12.725994

29 January 2007 Numerical prediction on static and dynamic properties for rotating mirror of ultra-high-speed photography

Hongbin Huang, Jingzhen Li, Xiangdong Gong, Fengshan Sun, Tiefeng He

Author Affiliations +

Proceedings Volume 6279, 27th International Congress on High-Speed Photography and Photonics; 62797L (2007) https://doi.org/10.1117/12.725994
Event: 27th International congress on High-Speed Photography and Photonics, 2006, Xi'an, China

Abstract

The methods of numerical analysis for the strength and vibration modals of rotating mirrors were presented based respectively on the three-dimensional elastic mechanics and dynamics. On strength computation, the finite element models of rotating mirror were established according to the real structure of mirror, and the rotating three-faced aluminous and beryllium mirrors were analysed contrastively. Results display that the surface deformation quantity of the aluminous mirror is approximately 20 times as large as beryllium one, and the maximum stress is 1.6 times against the latter. Then, the three-faced aluminous mirrors were analyzed at variedly fit between shaft and axle hole. One conclusion is gotten out that the mirror strength is foreign to fits, but it is weaken by the axle hole obviously. On the modal analysis of vibration, this method can simulates accurately the natural frequencies and corresponding modalities of mirror. And the results from three-face aluminous mirror indicate that the resonance points of a new mirror may be guaranteed existing in selected speed range.

Citation Download Citation

Hongbin Huang, Jingzhen Li, Xiangdong Gong, Fengshan Sun, and Tiefeng He "Numerical prediction on static and dynamic properties for rotating mirror of ultra-high-speed photography", Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62797L (29 January 2007); https://doi.org/10.1117/12.725994

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