Study on Vibration Characteristics of High-Speed Rotating Constrained Blades Based on Spin Softening

Hui Ying Zhao; Xiu Hua Men

doi:10.4028/www.scientific.net/AMM.863.241

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 863Study on Vibration Characteristics of High-Speed...

Study on Vibration Characteristics of High-Speed Rotating Constrained Blades Based on Spin Softening

Abstract:

Based on the theories of rotor dynamics, a dynamic model of rotating blade was built. Taking account of the effect of spin softening, the research on vibration characteristics of high-speed rotating blades was carried out under different speeds. The results had shown that frequency of blade vibration increased with rising rotating velocity, whilst the frequency of all orders declined with the influence of spin softening. Meanwhile, the change of each mode shape of blade was not very large at different speed. The conclusion derived from this paper had both theoretical and empirical value on retrofitting, optimal-designing, as well as engineering application for high-speed rotating blades.

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Periodical:

Applied Mechanics and Materials (Volume 863)

Pages:

241-245

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.863.241

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Online since:

February 2017

Authors:

Hui Ying Zhao, Xiu Hua Men*

Keywords:

Constrained Blades, High-Speed Rotating, Spin Softening, Vibration Characteristics

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* - Corresponding Author

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