基于厚板的弹性环式挤压油膜阻尼器建模及动力学特性系数识别

Zhenlin Wang; Zhansheng Liu; Guanghui Zhang; Zexin Zhou

doi:10.13224/j.cnki.jasp.2019.03.015

基于厚板的弹性环式挤压油膜阻尼器建模及动力学特性系数识别

Translated title of the contribution: Numerical modelling of elastic ring squeeze film damper based on thick plate and force coefficient identification

Zhenlin Wang
, Zhansheng Liu
, Guanghui Zhang
, Zexin Zhou

School of Energy Science and Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The two way couple model of elastic ring squeeze film damper(ERSFD) was established through numerical approach. The governing equation of the fluid block was obtained by Reynolds equation and the equation of motion of the elastic ring was solved by finite element method with thick plate. The coupled equations were solved through block iteration method. The transient pressure profile of inner film and outer film were obtained and the force coefficients of ERSFD were identified. The results show that the height of the boss has significant influence on the damping of the ERSFD. The increase of the height of the boss from 0.15mm to 0.30mm results in a drop of damping from 5790(N•s)/m to 718(N•s)/m. The stiffness coefficients of ERSFD have close relations with the thickness of the ring as well as the number of boss. The increase of thickness of elastic ring from 0.8mm to 1.0mm leads to the increase of the stiffness coefficients from 1.44×10⁶N/m to 2.51×10⁶N/m.

Translated title of the contribution	Numerical modelling of elastic ring squeeze film damper based on thick plate and force coefficient identification
Original language	Chinese (Traditional)
Pages (from-to)	635-642
Number of pages	8
Journal	Hangkong Dongli Xuebao/Journal of Aerospace Power
Volume	34
Issue number	3
DOIs	https://doi.org/10.13224/j.cnki.jasp.2019.03.015
State	Published - 1 Mar 2019
Externally published	Yes

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10.13224/j.cnki.jasp.2019.03.015

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@article{042c80c264e2487eb8a8262a77c14771,

title = "基于厚板的弹性环式挤压油膜阻尼器建模及动力学特性系数识别",

abstract = "The two way couple model of elastic ring squeeze film damper(ERSFD) was established through numerical approach. The governing equation of the fluid block was obtained by Reynolds equation and the equation of motion of the elastic ring was solved by finite element method with thick plate. The coupled equations were solved through block iteration method. The transient pressure profile of inner film and outer film were obtained and the force coefficients of ERSFD were identified. The results show that the height of the boss has significant influence on the damping of the ERSFD. The increase of the height of the boss from 0.15mm to 0.30mm results in a drop of damping from 5790(N•s)/m to 718(N•s)/m. The stiffness coefficients of ERSFD have close relations with the thickness of the ring as well as the number of boss. The increase of thickness of elastic ring from 0.8mm to 1.0mm leads to the increase of the stiffness coefficients from 1.44×106N/m to 2.51×106N/m.",

keywords = "Elastic ring squeeze film damper, Finite element method, Fluid-structure interaction, Force coefficients, Reynolds equation",

author = "Zhenlin Wang and Zhansheng Liu and Guanghui Zhang and Zexin Zhou",

year = "2019",

month = mar,

day = "1",

doi = "10.13224/j.cnki.jasp.2019.03.015",

language = "繁体中文",

volume = "34",

pages = "635--642",

journal = "Hangkong Dongli Xuebao/Journal of Aerospace Power",

issn = "1000-8055",

publisher = "BUAA Press",

number = "3",

}

TY - JOUR

T1 - 基于厚板的弹性环式挤压油膜阻尼器建模及动力学特性系数识别

AU - Wang, Zhenlin

AU - Liu, Zhansheng

AU - Zhang, Guanghui

AU - Zhou, Zexin

PY - 2019/3/1

Y1 - 2019/3/1

N2 - The two way couple model of elastic ring squeeze film damper(ERSFD) was established through numerical approach. The governing equation of the fluid block was obtained by Reynolds equation and the equation of motion of the elastic ring was solved by finite element method with thick plate. The coupled equations were solved through block iteration method. The transient pressure profile of inner film and outer film were obtained and the force coefficients of ERSFD were identified. The results show that the height of the boss has significant influence on the damping of the ERSFD. The increase of the height of the boss from 0.15mm to 0.30mm results in a drop of damping from 5790(N•s)/m to 718(N•s)/m. The stiffness coefficients of ERSFD have close relations with the thickness of the ring as well as the number of boss. The increase of thickness of elastic ring from 0.8mm to 1.0mm leads to the increase of the stiffness coefficients from 1.44×106N/m to 2.51×106N/m.

AB - The two way couple model of elastic ring squeeze film damper(ERSFD) was established through numerical approach. The governing equation of the fluid block was obtained by Reynolds equation and the equation of motion of the elastic ring was solved by finite element method with thick plate. The coupled equations were solved through block iteration method. The transient pressure profile of inner film and outer film were obtained and the force coefficients of ERSFD were identified. The results show that the height of the boss has significant influence on the damping of the ERSFD. The increase of the height of the boss from 0.15mm to 0.30mm results in a drop of damping from 5790(N•s)/m to 718(N•s)/m. The stiffness coefficients of ERSFD have close relations with the thickness of the ring as well as the number of boss. The increase of thickness of elastic ring from 0.8mm to 1.0mm leads to the increase of the stiffness coefficients from 1.44×106N/m to 2.51×106N/m.

KW - Elastic ring squeeze film damper

KW - Finite element method

KW - Fluid-structure interaction

KW - Force coefficients

KW - Reynolds equation

UR - https://www.scopus.com/pages/publications/85066155226

U2 - 10.13224/j.cnki.jasp.2019.03.015

DO - 10.13224/j.cnki.jasp.2019.03.015

M3 - 文章

AN - SCOPUS:85066155226

SN - 1000-8055

VL - 34

SP - 635

EP - 642

JO - Hangkong Dongli Xuebao/Journal of Aerospace Power

JF - Hangkong Dongli Xuebao/Journal of Aerospace Power

IS - 3

ER -

基于厚板的弹性环式挤压油膜阻尼器建模及动力学特性系数识别

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