Stiffness Characteristics of a Rotor Shaft with Slant Crack Including Elliptical Front Edge

Jie Gao; La Sheng Zhao; Qiang Zhang; Xiao Peng Wei

doi:10.4028/www.scientific.net/AMR.706-708.1566

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 706-708Stiffness Characteristics of a Rotor Shaft with...

Stiffness Characteristics of a Rotor Shaft with Slant Crack Including Elliptical Front Edge

Abstract:

The stiffness characteristics of a rotating cracked shaft including elliptical front edge between transverse crack and 45° slant crack have been studied here. The strain energy release rate (SERR) method has been used to calculate the stiffness matrix of two types of the crack element. Time-varying characteristics of stiffness of the straight front edge and elliptical front edge of the cracked shaft were studied in a stable rotation cycle. The analytical result of this paper shows that change of the cracked shaft stiffness raises during the increase of the crack depth. The stiffness characteristics of the rotor with slant crack having elliptical front edge vary differently from those of the rotor with transverse crack having elliptical front edge.

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Periodical:

Advanced Materials Research (Volumes 706-708)

Pages:

1566-1569

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.706-708.1566

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Online since:

June 2013

Authors:

Jie Gao, La Sheng Zhao, Qiang Zhang, Xiao Peng Wei

Keywords:

Cracked Rotor, Elliptical Front Edge, Stiffness Characteristics

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References

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