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RESEARCH PAPERS

Fan/Foundation Interaction—A Simplified Calculation Procedure

[+] Author and Article Information
H. M. Chen

Mechanical Technology Inc., Latham, N.Y.

S. B. Malanoski

Engineering Analysis, Mechanical Technology Inc., Latham, N.Y.

J. Eng. Power 103(4), 805-810 (Oct 01, 1981) (6 pages) doi:10.1115/1.3230805 History: Received June 20, 1980; Online September 28, 2009

Abstract

This paper presents a simplified analysis procedure to provide initial assessment and guidance on fan rotor dynamics including the foundation interaction. For purposes of early-design decision-making (or trouble-shooting), the interaction of a rotor-bearing dynamic system and a foundation-soil/piling dynamic system is viewed approximately for the vertical, horizontal, and rocking modes of vibration. The equations of motion are written in matrix form and include the pertinent parameters. A numerical example is presented to guide in the interpretation of the analysis; this example considers the unbalance response of the entire system as measured at the bearings.

Copyright © 1981 by ASME
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