Investigations on start-up performances of novel hybrid metal rubber-bump foil bearings

Chuanbing Zhang; Hongrui Ao; Hongyuan Jiang; Nannan Zhou

doi:10.1016/j.triboint.2020.106751

Investigations on start-up performances of novel hybrid metal rubber-bump foil bearings

Chuanbing Zhang
, Hongrui Ao^*
, Hongyuan Jiang
, Nannan Zhou

^*Corresponding author for this work

School of Mechatronics Engineering, Harbin Institute of Technology

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

37 Scopus citations

Abstract

In the frequent start-up process of aerodynamic bearings, contact easily occurs between journal and bearing bush. In this research, novel hybrid metal rubber-bump foil bearings (MR-BFBs) were proposed. Based on rough surface contact and ultra-thin film lubrication theory, we studied the start-up performances of MR-BFBs. The results showed that the changes in both RSm and Ra caused great changes in the parameters p_max and A₀. The increased start-up times led to a decrease in the load ratio W_c/W₀ and the total friction coefficient, and an increase in both the linear velocity, the gas film pressure and the minimum gas film thickness. With the increase in the composite roughness, both the critical rotation speed and start-up time exhibited an upward trend.

Original language	English
Article number	106751
Journal	Tribology International
Volume	154
DOIs	https://doi.org/10.1016/j.triboint.2020.106751
State	Published - Feb 2021
Externally published	Yes

Keywords

Contact properties
Metal rubber-bump foil bearings (MR-BFBs)
Start-up performances
Surface roughness

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10.1016/j.triboint.2020.106751

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@article{dc887044de5f449ba95bec451b5dcdcd,

title = "Investigations on start-up performances of novel hybrid metal rubber-bump foil bearings",

abstract = "In the frequent start-up process of aerodynamic bearings, contact easily occurs between journal and bearing bush. In this research, novel hybrid metal rubber-bump foil bearings (MR-BFBs) were proposed. Based on rough surface contact and ultra-thin film lubrication theory, we studied the start-up performances of MR-BFBs. The results showed that the changes in both RSm and Ra caused great changes in the parameters pmax and A0. The increased start-up times led to a decrease in the load ratio Wc/W0 and the total friction coefficient, and an increase in both the linear velocity, the gas film pressure and the minimum gas film thickness. With the increase in the composite roughness, both the critical rotation speed and start-up time exhibited an upward trend.",

keywords = "Contact properties, Metal rubber-bump foil bearings (MR-BFBs), Start-up performances, Surface roughness",

author = "Chuanbing Zhang and Hongrui Ao and Hongyuan Jiang and Nannan Zhou",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2021",

month = feb,

doi = "10.1016/j.triboint.2020.106751",

language = "英语",

volume = "154",

journal = "Tribology International",

issn = "0301-679X",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Investigations on start-up performances of novel hybrid metal rubber-bump foil bearings

AU - Zhang, Chuanbing

AU - Ao, Hongrui

AU - Jiang, Hongyuan

AU - Zhou, Nannan

PY - 2021/2

Y1 - 2021/2

N2 - In the frequent start-up process of aerodynamic bearings, contact easily occurs between journal and bearing bush. In this research, novel hybrid metal rubber-bump foil bearings (MR-BFBs) were proposed. Based on rough surface contact and ultra-thin film lubrication theory, we studied the start-up performances of MR-BFBs. The results showed that the changes in both RSm and Ra caused great changes in the parameters pmax and A0. The increased start-up times led to a decrease in the load ratio Wc/W0 and the total friction coefficient, and an increase in both the linear velocity, the gas film pressure and the minimum gas film thickness. With the increase in the composite roughness, both the critical rotation speed and start-up time exhibited an upward trend.

AB - In the frequent start-up process of aerodynamic bearings, contact easily occurs between journal and bearing bush. In this research, novel hybrid metal rubber-bump foil bearings (MR-BFBs) were proposed. Based on rough surface contact and ultra-thin film lubrication theory, we studied the start-up performances of MR-BFBs. The results showed that the changes in both RSm and Ra caused great changes in the parameters pmax and A0. The increased start-up times led to a decrease in the load ratio Wc/W0 and the total friction coefficient, and an increase in both the linear velocity, the gas film pressure and the minimum gas film thickness. With the increase in the composite roughness, both the critical rotation speed and start-up time exhibited an upward trend.

KW - Contact properties

KW - Metal rubber-bump foil bearings (MR-BFBs)

KW - Start-up performances

KW - Surface roughness

UR - https://www.scopus.com/pages/publications/85095732908

U2 - 10.1016/j.triboint.2020.106751

DO - 10.1016/j.triboint.2020.106751

M3 - 文章

AN - SCOPUS:85095732908

SN - 0301-679X

VL - 154

JO - Tribology International

JF - Tribology International

M1 - 106751

ER -

Investigations on start-up performances of novel hybrid metal rubber-bump foil bearings

Abstract

Keywords

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