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Title: Critical speed measurements in the Tevatron cold compressors

Abstract

The Fermilab Tevatron cryogenic system utilizes high-speed centrifugal cold compressors, manufactured by Ishikawajima-Harima Heavy Industries Co. Ltd. (IHI), for high energy operations. Nominal operating range for these compressors is 43,000 to 85,000 rpm. Past foil bearing failures prompted investigation to determine if critical speeds for operating compressors fall within operating range. Data acquisition hardware and software settings will be discussed for measuring liftoff, first critical and second critical speeds. Several tests provided comparisons between an optical displacement probe and accelerometer measurements. Vibration data and analysis of the 20 Tevatron ring cold compressors will be presented.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
897189
Report Number(s):
FERMILAB-CONF-05-636-AD
TRN: US0701252
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Journal Name: AIP Conf.Proc.823:1392-1398,2006; Conference: Prepared for 2005 Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC-ICMC 2005), Keystone, Colorado, 29 Aug - 2 Sep 2005
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 47 OTHER INSTRUMENTATION; ACCELEROMETERS; BEARINGS; COMPRESSORS; CRYOGENICS; DATA ACQUISITION; FERMILAB TEVATRON; PROBES; VELOCITY; Accelerators

Citation Formats

DeGraff, B., Bossert, R., Martinez, A., Soyars, W.M., and /Fermilab. Critical speed measurements in the Tevatron cold compressors. United States: N. p., 2006. Web.
DeGraff, B., Bossert, R., Martinez, A., Soyars, W.M., & /Fermilab. Critical speed measurements in the Tevatron cold compressors. United States.
DeGraff, B., Bossert, R., Martinez, A., Soyars, W.M., and /Fermilab. Sun . "Critical speed measurements in the Tevatron cold compressors". United States. doi:. https://www.osti.gov/servlets/purl/897189.
@article{osti_897189,
title = {Critical speed measurements in the Tevatron cold compressors},
author = {DeGraff, B. and Bossert, R. and Martinez, A. and Soyars, W.M. and /Fermilab},
abstractNote = {The Fermilab Tevatron cryogenic system utilizes high-speed centrifugal cold compressors, manufactured by Ishikawajima-Harima Heavy Industries Co. Ltd. (IHI), for high energy operations. Nominal operating range for these compressors is 43,000 to 85,000 rpm. Past foil bearing failures prompted investigation to determine if critical speeds for operating compressors fall within operating range. Data acquisition hardware and software settings will be discussed for measuring liftoff, first critical and second critical speeds. Several tests provided comparisons between an optical displacement probe and accelerometer measurements. Vibration data and analysis of the 20 Tevatron ring cold compressors will be presented.},
doi = {},
journal = {AIP Conf.Proc.823:1392-1398,2006},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}

Conference:
Other availability
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