Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System

Dongwu Li; Chao Xu; Muzio Gola; Daniele Botto

doi:10.1007/978-3-030-34747-5_20

Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System

Dongwu Li, Chao Xu, Muzio Gola, Daniele Botto

School of Astronautics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Under-platform damper is used to attenuate resonant response and further prevent high cycle fatigue failure of turbine blades. The aim of this work is to improve the representation of contact interfaces in modeling an asymmetrical underplatform damper. A new reduced-order contact model with a lumped parameter form is proposed, which is based on a modification of the classical Iwan model. This model can explicitly consider the normal contact pressure on line contact. In modeling process, a method to relate the physical Hertzian normal contact pressure with the probability density function (PDF) of slider sliding force for continuous Iwan model is developed. Experimental results from a laboratory asymmetrical under-platform damper test rig are employed to validate the proposed model. For comparison, different normal contact pressure distributions are considered. The outof- phase motion of the damper is numerically investigated, and the results show that the proposed model can give an accurate prediction of the damper's nonlinear mechanics behavior.

Original language	English
Title of host publication	Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019
Editors	Walter Lacarbonara, Balakumar Balachandran, Jun Ma, J.A. Tenreiro Machado, Gabor Stepan
Publisher	Springer Nature
Pages	197-205
Number of pages	9
ISBN (Electronic)	9783030347468
DOIs	https://doi.org/10.1007/978-3-030-34747-5_20
State	Published - 2020
Event	1st International Nonlinear Dynamics Conference, NODYCON 2019 - Rome, Italy Duration: 17 Feb 2019 → 20 Feb 2019

Publication series

Name	Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019

Conference

Conference	1st International Nonlinear Dynamics Conference, NODYCON 2019
Country/Territory	Italy
City	Rome
Period	17/02/19 → 20/02/19

Keywords

Friction contact
Iwan model
Turbomachinery
Under-platform damper

Access to Document

10.1007/978-3-030-34747-5_20

Cite this

Li, D., Xu, C., Gola, M., & Botto, D. (2020). Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System. In W. Lacarbonara, B. Balachandran, J. Ma, J. A. Tenreiro Machado, & G. Stepan (Eds.), Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019 (pp. 197-205). (Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019). Springer Nature. https://doi.org/10.1007/978-3-030-34747-5_20

Li, Dongwu ; Xu, Chao ; Gola, Muzio et al. / Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System. Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019. editor / Walter Lacarbonara ; Balakumar Balachandran ; Jun Ma ; J.A. Tenreiro Machado ; Gabor Stepan. Springer Nature, 2020. pp. 197-205 (Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019).

@inproceedings{083b8dc99dae46818973f212d12c8d7c,

title = "Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System",

abstract = "Under-platform damper is used to attenuate resonant response and further prevent high cycle fatigue failure of turbine blades. The aim of this work is to improve the representation of contact interfaces in modeling an asymmetrical underplatform damper. A new reduced-order contact model with a lumped parameter form is proposed, which is based on a modification of the classical Iwan model. This model can explicitly consider the normal contact pressure on line contact. In modeling process, a method to relate the physical Hertzian normal contact pressure with the probability density function (PDF) of slider sliding force for continuous Iwan model is developed. Experimental results from a laboratory asymmetrical under-platform damper test rig are employed to validate the proposed model. For comparison, different normal contact pressure distributions are considered. The outof- phase motion of the damper is numerically investigated, and the results show that the proposed model can give an accurate prediction of the damper's nonlinear mechanics behavior.",

keywords = "Friction contact, Iwan model, Turbomachinery, Under-platform damper",

author = "Dongwu Li and Chao Xu and Muzio Gola and Daniele Botto",

note = "Publisher Copyright: {\textcopyright} 2020 Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019. All rights reserved.; 1st International Nonlinear Dynamics Conference, NODYCON 2019 ; Conference date: 17-02-2019 Through 20-02-2019",

year = "2020",

doi = "10.1007/978-3-030-34747-5_20",

language = "英语",

series = "Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019",

publisher = "Springer Nature",

pages = "197--205",

editor = "Walter Lacarbonara and Balakumar Balachandran and Jun Ma and {Tenreiro Machado}, J.A. and Gabor Stepan",

booktitle = "Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019",

}

Li, D, Xu, C, Gola, M & Botto, D 2020, Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System. in W Lacarbonara, B Balachandran, J Ma, JA Tenreiro Machado & G Stepan (eds), Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019. Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019, Springer Nature, pp. 197-205, 1st International Nonlinear Dynamics Conference, NODYCON 2019, Rome, Italy, 17/02/19. https://doi.org/10.1007/978-3-030-34747-5_20

Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System. / Li, Dongwu; Xu, Chao; Gola, Muzio et al.
Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019. ed. / Walter Lacarbonara; Balakumar Balachandran; Jun Ma; J.A. Tenreiro Machado; Gabor Stepan. Springer Nature, 2020. p. 197-205 (Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System

AU - Li, Dongwu

AU - Xu, Chao

AU - Gola, Muzio

AU - Botto, Daniele

PY - 2020

Y1 - 2020

N2 - Under-platform damper is used to attenuate resonant response and further prevent high cycle fatigue failure of turbine blades. The aim of this work is to improve the representation of contact interfaces in modeling an asymmetrical underplatform damper. A new reduced-order contact model with a lumped parameter form is proposed, which is based on a modification of the classical Iwan model. This model can explicitly consider the normal contact pressure on line contact. In modeling process, a method to relate the physical Hertzian normal contact pressure with the probability density function (PDF) of slider sliding force for continuous Iwan model is developed. Experimental results from a laboratory asymmetrical under-platform damper test rig are employed to validate the proposed model. For comparison, different normal contact pressure distributions are considered. The outof- phase motion of the damper is numerically investigated, and the results show that the proposed model can give an accurate prediction of the damper's nonlinear mechanics behavior.

AB - Under-platform damper is used to attenuate resonant response and further prevent high cycle fatigue failure of turbine blades. The aim of this work is to improve the representation of contact interfaces in modeling an asymmetrical underplatform damper. A new reduced-order contact model with a lumped parameter form is proposed, which is based on a modification of the classical Iwan model. This model can explicitly consider the normal contact pressure on line contact. In modeling process, a method to relate the physical Hertzian normal contact pressure with the probability density function (PDF) of slider sliding force for continuous Iwan model is developed. Experimental results from a laboratory asymmetrical under-platform damper test rig are employed to validate the proposed model. For comparison, different normal contact pressure distributions are considered. The outof- phase motion of the damper is numerically investigated, and the results show that the proposed model can give an accurate prediction of the damper's nonlinear mechanics behavior.

KW - Friction contact

KW - Iwan model

KW - Turbomachinery

KW - Under-platform damper

UR - http://www.scopus.com/inward/record.url?scp=85124701280&partnerID=8YFLogxK

U2 - 10.1007/978-3-030-34747-5_20

DO - 10.1007/978-3-030-34747-5_20

M3 - 会议稿件

AN - SCOPUS:85124701280

T3 - Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019

SP - 197

EP - 205

BT - Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019

A2 - Lacarbonara, Walter

A2 - Balachandran, Balakumar

A2 - Ma, Jun

A2 - Tenreiro Machado, J.A.

A2 - Stepan, Gabor

PB - Springer Nature

T2 - 1st International Nonlinear Dynamics Conference, NODYCON 2019

Y2 - 17 February 2019 through 20 February 2019

ER -

Li D, Xu C, Gola M, Botto D. Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System. In Lacarbonara W, Balachandran B, Ma J, Tenreiro Machado JA, Stepan G, editors, Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019. Springer Nature. 2020. p. 197-205. (Nonlinear Dynamics and Control - Proceedings of the 1st International Nonlinear Dynamics Conference, NODYCON 2019). doi: 10.1007/978-3-030-34747-5_20

Reduced-Order Modeling Friction for Line Contact in a Turbine Blade Damper System

Abstract

Publication series

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Cite this