Effect of taper error on the performance of gas foil conical bearing. Issue 10 (14th May 2020)
- Record Type:
- Journal Article
- Title:
- Effect of taper error on the performance of gas foil conical bearing. Issue 10 (14th May 2020)
- Main Title:
- Effect of taper error on the performance of gas foil conical bearing
- Authors:
- Hu, Hongyang
Feng, Ming
Ren, Tianming - Abstract:
- Abstract : Purpose: This paper aims to study the bearing performance with different cone angle errors, to study the effect law of manufacturing taper error on the properties of gas foil conical bearing (GFCB). Design/methodology/approach: For the GFCB supported by separated bump foil strips, a nonlinear structure stiffness model considering Coulomb friction and arch characteristics was proposed. The finite element method and finite difference method were used to solve the Reynolds equation and the film thickness equation by coupling, and the properties of the GFCB were obtained. The effect of foil and bearing structure parameters on the static and dynamic performance under different taper error cases was analyzed. Moreover, a test on the air compressor supported by GFCBs was conducted to verify the practicability. Findings: The taper error has a largely adverse effect on the load capacity of GFCB. When the taper error is −0.03°, the radial load capacity Fr and axial load capacity Fz decrease by 37.5 and 58.3%, respectively. The taper error decreases the direct stiffness and cross-coupled damping of GFCB, which will weaken the bearing stability. Moreover, the performance of GFCB is closely related to the foil and bearing parameters. Originality/value: The taper error adversely affects the static and dynamic characteristics of GFCB, which should be concerned by bearing designers, researchers and academicians. Peer review: The peer review history for this article is availableAbstract : Purpose: This paper aims to study the bearing performance with different cone angle errors, to study the effect law of manufacturing taper error on the properties of gas foil conical bearing (GFCB). Design/methodology/approach: For the GFCB supported by separated bump foil strips, a nonlinear structure stiffness model considering Coulomb friction and arch characteristics was proposed. The finite element method and finite difference method were used to solve the Reynolds equation and the film thickness equation by coupling, and the properties of the GFCB were obtained. The effect of foil and bearing structure parameters on the static and dynamic performance under different taper error cases was analyzed. Moreover, a test on the air compressor supported by GFCBs was conducted to verify the practicability. Findings: The taper error has a largely adverse effect on the load capacity of GFCB. When the taper error is −0.03°, the radial load capacity Fr and axial load capacity Fz decrease by 37.5 and 58.3%, respectively. The taper error decreases the direct stiffness and cross-coupled damping of GFCB, which will weaken the bearing stability. Moreover, the performance of GFCB is closely related to the foil and bearing parameters. Originality/value: The taper error adversely affects the static and dynamic characteristics of GFCB, which should be concerned by bearing designers, researchers and academicians. Peer review: The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2020-0089/ … (more)
- Is Part Of:
- Industrial lubrication and tribology. Volume 72:Issue 10(2020)
- Journal:
- Industrial lubrication and tribology
- Issue:
- Volume 72:Issue 10(2020)
- Issue Display:
- Volume 72, Issue 10 (2020)
- Year:
- 2020
- Volume:
- 72
- Issue:
- 10
- Issue Sort Value:
- 2020-0072-0010-0000
- Page Start:
- 1189
- Page End:
- 1197
- Publication Date:
- 2020-05-14
- Subjects:
- Gas foil conical bearing -- Taper error -- Load capacity -- Dynamic performance
Lubrication and lubricants -- Periodicals
Tribology -- Periodicals
621.89 - Journal URLs:
- http://www.emeraldinsight.com/0036-8792.htm ↗
http://www.emeraldinsight.com/ ↗ - DOI:
- 10.1108/ILT-03-2020-0089 ↗
- Languages:
- English
- ISSNs:
- 0036-8792
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4457.610000
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 22231.xml