Influence of Sensitive Cavity Structure on the Resolution of Fluidic Gyroscope

Abstract:

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The flow distribution of fluidic gyroscope with three different cavities was researched when angular velocity ωi is input. Using Finite element method we calculated two-dimensional flow distribution of fluidic gyroscope with rectangular cavity and two streamlined cavity structures when ωi input. The results show that: with ωi increasing, the fluidic beam centers in three cavities have a more deviation on one side, while in two streamlined cavities it deviates obviously. When ωi is 10rad/s, velocity difference of two thermal wires in streamlined cavity 1 and cavity 2 increase 42.59% and 59.30% respectively compared with rectangular cavity, velocity and y-axial velocity of two thermal wires in streamlined cavity 1 are smaller than rectangular cavity but larger than streamlined cavity 2, but x-axial velocity of two thermal wires in streamlined cavity 1 are smaller than other two cavities, and so is ωi = 15rad/s. It also shows that velocity difference between two thermal wires in streamlined cavity 1 is larger than others, and temperature difference is larger, which can improve the resolution of fluidic gyroscope. This article has laid a theoretical foundation to further enhance performance of fluidic gyroscopes.

Info:

Periodical:

Edited by:

Huawu Liu, Yongxin Yang, Shijie Shen, Zhili Zhong, Laijiu Zheng and Peng Feng

Pages:

1558-1561

DOI:

10.4028/www.scientific.net/AMM.268-270.1558

Citation:

B. L. Zhang et al., "Influence of Sensitive Cavity Structure on the Resolution of Fluidic Gyroscope", Applied Mechanics and Materials, Vols. 268-270, pp. 1558-1561, 2013

Online since:

December 2012

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$35.00

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