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Influence of crack depth on dynamic characteristics of spur gear system

Influence of crack depth on dynamic characteristics of spur gear system
Influence of crack depth on dynamic characteristics of spur gear system
Background

Root crack is relatively common failure scenarios in spur gear system, and its dynamic characteristics and crack identification theory are addressed by many scholars. However, cracked spur gear identification model, especially related to its signal propagation characteristics, requires in-depth research due to the limited published works.

Purpose

Therefore, a bending–torsional coupling nonlinear vibration model of six degrees of freedom (DOF) is established through lumped mass method. Besides, the influence of tooth root crack on the measuring point signal is considered in the model.

Methods

The system response is solved by Runge–Kutta numerical integration method. The change of different tooth-root crack depth on the response amplitude of measuring points is studied.

Results

It is found that with the increase of crack length, meshing stiffness of single-tooth mashing area and double-tooth meshing area are reduced. In addition, precision reduces slightly, but the overall precision calculated by 6-order ARX identification model is greater than 99.40%.

Conclusion

The research provides a theoretical basis for the system testing and measuring point’s parameter identification.
2523-3920
227–233
Chen, Yuan
77302fa5-7cf8-461a-9c60-9ce608590246
Zhu, Rupeng
244506bc-af66-4b40-80b5-ff3d1d11742d
Jin, Guanghu
9cecd7e6-3cf9-4f95-a574-35044c4f4c7b
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Chen, Yuan
77302fa5-7cf8-461a-9c60-9ce608590246
Zhu, Rupeng
244506bc-af66-4b40-80b5-ff3d1d11742d
Jin, Guanghu
9cecd7e6-3cf9-4f95-a574-35044c4f4c7b
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49

Chen, Yuan, Zhu, Rupeng, Jin, Guanghu and Xiong, Yeping (2019) Influence of crack depth on dynamic characteristics of spur gear system. Journal of Vibration Engineering & Technologies, 7 (3), 227–233. (doi:10.1007/s42417-019-00115-2).

Record type: Article

Abstract

Background

Root crack is relatively common failure scenarios in spur gear system, and its dynamic characteristics and crack identification theory are addressed by many scholars. However, cracked spur gear identification model, especially related to its signal propagation characteristics, requires in-depth research due to the limited published works.

Purpose

Therefore, a bending–torsional coupling nonlinear vibration model of six degrees of freedom (DOF) is established through lumped mass method. Besides, the influence of tooth root crack on the measuring point signal is considered in the model.

Methods

The system response is solved by Runge–Kutta numerical integration method. The change of different tooth-root crack depth on the response amplitude of measuring points is studied.

Results

It is found that with the increase of crack length, meshing stiffness of single-tooth mashing area and double-tooth meshing area are reduced. In addition, precision reduces slightly, but the overall precision calculated by 6-order ARX identification model is greater than 99.40%.

Conclusion

The research provides a theoretical basis for the system testing and measuring point’s parameter identification.

Text
VET-849 Final Accepted Chen & Xiong - Accepted Manuscript
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More information

Accepted/In Press date: 17 October 2017
e-pub ahead of print date: 21 May 2019
Published date: June 2019

Identifiers

Local EPrints ID: 431362
URI: http://eprints.soton.ac.uk/id/eprint/431362
ISSN: 2523-3920
PURE UUID: 5388f2cc-8026-4191-ae24-c8b7eab9fd43
ORCID for Yeping Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 30 May 2019 16:30
Last modified: 22 Nov 2021 07:24

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Contributors

Author: Yuan Chen
Author: Rupeng Zhu
Author: Guanghu Jin
Author: Yeping Xiong ORCID iD

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