Modal analysis of rotating mirror clipped by the elastic bearings for ultra-high speed photography

huang hong-bin; li jing-zhen; gong xiang-dong; sun feng-shan; ai yue-xia; he tie-feng

Volume 19 Issue 02

Feb. 2007

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(02): 0-

du guangxing, qian baoliang. Side focusing fields generated by offset-pole periodic cusped magnets[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

huang hong-bin, li jing-zhen, gong xiang-dong, et al. Modal analysis of rotating mirror clipped by the elastic bearings for ultra-high speed photography[J]. High Power Laser and Particle Beams, 2007, 19.

du guangxing, qian baoliang. Side focusing fields generated by offset-pole periodic cusped magnets[J]. High Power Laser and Particle Beams, 2011, 23.

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Modal analysis of rotating mirror clipped by the elastic bearings for ultra-high speed photography

1.
College of Science and Technology,Shenzhen University,Shenzhen 518060,China;
2.
Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710068

Publish Date: 2007-02-15

Abstract

Abstract

The modal analysis method studying the elastic support rotating mirror for ultra-high speed photography was presented. With the finite element technology，the first and second modes of the three-faced aluminum alloy mirror were simulated under the stiff and elastic bearings condition. The simulation results show that the only two resonance points are in the speed ranges of 2.5×105 to 2.6×105 r/min and 2.6×105 to 2.7×105 r/min respectively, both resonances are first order flexure vibrations. The vibration of the first order modal occurs in vertical plane and that of the second occurs in level plane. The simulation results under the elastic supporting hypothesis are more close to that of the experimental results.
- ultra-high speed photography,
- aluminum alloy rotating mirror,
- elastic bearings,
- finite element method,
- modal analysis

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