Effect of inlet grooves and swirl on the dynamics of long annular seals in centrifugal pumps

Mohamed Ismail; David R. Brown; David France

Effect of inlet grooves and swirl on the dynamics of long annular seals in centrifugal pumps

Mohamed Ismail
, David R. Brown
, David France

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper describes additional result from a continuing research program which aims to identify the dynamics of long annular seals in centrifugal pumps. A seal test rig designed to experimentally identify dynamic coefficients using a least-squares technique based on the singular value decomposition method. The analysis is carried out in the time domain using a multifrequency forcing function. The experimental method relies on the forced excitation of a flexibly supported in rolling element bearings runs through the stator. The only physical connection between shaft and stator is a pair of annular gaps filled with pressurized water discharged axially. The experimental coefficients obtained from the tests are compared with theoretical values.

Original language	English
Title of host publication	Vibration of Rotating Systems
Pages	181-195
Number of pages	15
Volume	60
Publication status	Published - 1993
Event	Proceedings of the 14th Biennial ASME Design Technical Conference on Mechanical Vibration and Noise - Albuquerque, NM, USA Duration: 19 Sept 1993 → 22 Sept 1993

Conference

Conference	Proceedings of the 14th Biennial ASME Design Technical Conference on Mechanical Vibration and Noise
City	Albuquerque, NM, USA
Period	19/09/93 → 22/09/93

Cite this

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title = "Effect of inlet grooves and swirl on the dynamics of long annular seals in centrifugal pumps",

abstract = "This paper describes additional result from a continuing research program which aims to identify the dynamics of long annular seals in centrifugal pumps. A seal test rig designed to experimentally identify dynamic coefficients using a least-squares technique based on the singular value decomposition method. The analysis is carried out in the time domain using a multifrequency forcing function. The experimental method relies on the forced excitation of a flexibly supported in rolling element bearings runs through the stator. The only physical connection between shaft and stator is a pair of annular gaps filled with pressurized water discharged axially. The experimental coefficients obtained from the tests are compared with theoretical values.",

author = "Mohamed Ismail and Brown, \{David R.\} and David France",

year = "1993",

language = "English",

isbn = "0791806391",

volume = "60",

pages = "181--195",

booktitle = "Vibration of Rotating Systems",

note = "Proceedings of the 14th Biennial ASME Design Technical Conference on Mechanical Vibration and Noise ; Conference date: 19-09-1993 Through 22-09-1993",

}

TY - GEN

T1 - Effect of inlet grooves and swirl on the dynamics of long annular seals in centrifugal pumps

AU - Ismail, Mohamed

AU - Brown, David R.

AU - France, David

PY - 1993

Y1 - 1993

N2 - This paper describes additional result from a continuing research program which aims to identify the dynamics of long annular seals in centrifugal pumps. A seal test rig designed to experimentally identify dynamic coefficients using a least-squares technique based on the singular value decomposition method. The analysis is carried out in the time domain using a multifrequency forcing function. The experimental method relies on the forced excitation of a flexibly supported in rolling element bearings runs through the stator. The only physical connection between shaft and stator is a pair of annular gaps filled with pressurized water discharged axially. The experimental coefficients obtained from the tests are compared with theoretical values.

AB - This paper describes additional result from a continuing research program which aims to identify the dynamics of long annular seals in centrifugal pumps. A seal test rig designed to experimentally identify dynamic coefficients using a least-squares technique based on the singular value decomposition method. The analysis is carried out in the time domain using a multifrequency forcing function. The experimental method relies on the forced excitation of a flexibly supported in rolling element bearings runs through the stator. The only physical connection between shaft and stator is a pair of annular gaps filled with pressurized water discharged axially. The experimental coefficients obtained from the tests are compared with theoretical values.

UR - https://www.scopus.com/pages/publications/0027804086

M3 - Conference contribution

SN - 0791806391

VL - 60

SP - 181

EP - 195

BT - Vibration of Rotating Systems

T2 - Proceedings of the 14th Biennial ASME Design Technical Conference on Mechanical Vibration and Noise

Y2 - 19 September 1993 through 22 September 1993

ER -

Effect of inlet grooves and swirl on the dynamics of long annular seals in centrifugal pumps

Abstract

Conference

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