Microturbocharger with air foil bearings for a 100-W class micro power system and improvement of rotordynamic performance

Yong Bok Lee; Yong Suk Kwak; Jin Taek Chung; Kyuho Sim

doi:10.1080/10402004.2011.617900

Microturbocharger with air foil bearings for a 100-W class micro power system and improvement of rotordynamic performance

Yong Bok Lee, Yong Suk Kwak, Jin Taek Chung, Kyuho Sim

GREEN SCHOOL (Graduate School of Energy and Environment)

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

13 Citations (Scopus)

Abstract

This article presents the experimental investigation of a microturbocharger supported on bump-type air foil bearings (AFBs) for a 100-W power generation. The microturbocharger was designed via thermodynamic cycle analyses as well as rotordynamic analyses and constructed using a centrifugal compressor and turbine with tip diameter of 10 mm. The tests for AFBs at rotating speeds up to 410 krpm driven by air showed a large subsynchronous motion at 100 Hz. However, AFBs with an additional viscoelastic film eliminated the subsynchronous response due to increased damping by the viscoelastic film. The compressor performance was evaluated numerically and experimentally.

Original language	English
Pages (from-to)	939-948
Number of pages	10
Journal	Tribology Transactions
Volume	54
Issue number	6
DOIs	https://doi.org/10.1080/10402004.2011.617900
Publication status	Published - 2011

Keywords

Air Foil Bearing
Micro Power System
Rotordynamics
Viscoelastic Foil Bearing

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1080/10402004.2011.617900

Cite this

@article{aacedc5684254e8698823cff9b701b70,

title = "Microturbocharger with air foil bearings for a 100-W class micro power system and improvement of rotordynamic performance",

abstract = "This article presents the experimental investigation of a microturbocharger supported on bump-type air foil bearings (AFBs) for a 100-W power generation. The microturbocharger was designed via thermodynamic cycle analyses as well as rotordynamic analyses and constructed using a centrifugal compressor and turbine with tip diameter of 10 mm. The tests for AFBs at rotating speeds up to 410 krpm driven by air showed a large subsynchronous motion at 100 Hz. However, AFBs with an additional viscoelastic film eliminated the subsynchronous response due to increased damping by the viscoelastic film. The compressor performance was evaluated numerically and experimentally.",

keywords = "Air Foil Bearing, Micro Power System, Rotordynamics, Viscoelastic Foil Bearing",

author = "Lee, {Yong Bok} and Kwak, {Yong Suk} and Chung, {Jin Taek} and Kyuho Sim",

year = "2011",

doi = "10.1080/10402004.2011.617900",

language = "English",

volume = "54",

pages = "939--948",

journal = "ASLE transactions",

issn = "1040-2004",

publisher = "Taylor and Francis Ltd.",

number = "6",

}

TY - JOUR

T1 - Microturbocharger with air foil bearings for a 100-W class micro power system and improvement of rotordynamic performance

AU - Lee, Yong Bok

AU - Kwak, Yong Suk

AU - Chung, Jin Taek

AU - Sim, Kyuho

PY - 2011

Y1 - 2011

N2 - This article presents the experimental investigation of a microturbocharger supported on bump-type air foil bearings (AFBs) for a 100-W power generation. The microturbocharger was designed via thermodynamic cycle analyses as well as rotordynamic analyses and constructed using a centrifugal compressor and turbine with tip diameter of 10 mm. The tests for AFBs at rotating speeds up to 410 krpm driven by air showed a large subsynchronous motion at 100 Hz. However, AFBs with an additional viscoelastic film eliminated the subsynchronous response due to increased damping by the viscoelastic film. The compressor performance was evaluated numerically and experimentally.

AB - This article presents the experimental investigation of a microturbocharger supported on bump-type air foil bearings (AFBs) for a 100-W power generation. The microturbocharger was designed via thermodynamic cycle analyses as well as rotordynamic analyses and constructed using a centrifugal compressor and turbine with tip diameter of 10 mm. The tests for AFBs at rotating speeds up to 410 krpm driven by air showed a large subsynchronous motion at 100 Hz. However, AFBs with an additional viscoelastic film eliminated the subsynchronous response due to increased damping by the viscoelastic film. The compressor performance was evaluated numerically and experimentally.

KW - Air Foil Bearing

KW - Micro Power System

KW - Rotordynamics

KW - Viscoelastic Foil Bearing

UR - http://www.scopus.com/inward/record.url?scp=84983568600&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983568600&partnerID=8YFLogxK

U2 - 10.1080/10402004.2011.617900

DO - 10.1080/10402004.2011.617900

M3 - Article

AN - SCOPUS:84983568600

SN - 1040-2004

VL - 54

SP - 939

EP - 948

JO - ASLE transactions

JF - ASLE transactions

IS - 6

ER -

Microturbocharger with air foil bearings for a 100-W class micro power system and improvement of rotordynamic performance

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this