Session Start Date

5-6-1984

Abstract

Studies on dynamic behaviour of turbo-generator foundations of various ratings have been carried out. Salient response parameters have been identified, Field vibration measurements taken on a 200 MW T.G. foundation have been reported. Measurements taken under intermittent coast-up and constant speed conditions have been analysed using FFT analyser and the frequency response thus obtained has been presented and discussed. From the signature analysis, high vibration peaks associated with the soil vibration modes have been observed. Analytical study carried out for 200 MW TG foundation also indicated the significance of soil structure interaction effect on the dynamic response. Based on the results of the analytical and experimental studies, recommendations have been made to include the soil structure interaction effect for dynamic response calculations.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

First Conference

Publisher

University of Missouri--Rolla

Publication Date

5-6-1984

Document Version

Final Version

Rights

© 1984 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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May 6th, 12:00 AM

Machine Foundations in Power Plant and Other Industries- Case Studies

Studies on dynamic behaviour of turbo-generator foundations of various ratings have been carried out. Salient response parameters have been identified, Field vibration measurements taken on a 200 MW T.G. foundation have been reported. Measurements taken under intermittent coast-up and constant speed conditions have been analysed using FFT analyser and the frequency response thus obtained has been presented and discussed. From the signature analysis, high vibration peaks associated with the soil vibration modes have been observed. Analytical study carried out for 200 MW TG foundation also indicated the significance of soil structure interaction effect on the dynamic response. Based on the results of the analytical and experimental studies, recommendations have been made to include the soil structure interaction effect for dynamic response calculations.