Random excitation forces can cause low-amplitude tube motion that will result in long-term fretting-wear or fatigue. To prevent these tube failures in heat exchangers, designers and troubleshooters must have guidelines that incorporate random or turbulent fluid forces. Experiments designed to measure fluid forces were conducted at the Chalk River Laboratories and at other laboratories worldwide. The data from these experiments were studied and collated, to determine suitable guidelines for random excitation forces. In this paper, a guideline for random excitation forces in single-phase cross flow is presented in the form of normalized spectra that are applicable to a wide range of flow conditions and tube frequencies. In particular, the experimental results used in this study were conducted over the full range of flow conditions found in the liquid region of a nuclear steam generator. The proposed guidelines are applicable to steam generators, condensers, reheaters and other shell-and-tube heat exchangers. They may be used for flow-induced vibration analysis of new or existing components, as input to vibration analysis computer codes and as specifications in procurement documents. [S0094-9930(00)00603-X]
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e-mail: taylorc@aecl.ca
e-mail: mpetti@meca.polymtl.ca
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November 2000
Technical Papers
Random Excitation Forces in Heat Exchanger Tube Bundles
C. E. Taylor,
e-mail: taylorc@aecl.ca
C. E. Taylor
Atomic Energy of Canada Limited, Chalk River Laboratories, Chalk River, Ontario K0J 1J0 Canada
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M. J. Pettigrew, Fellow ASME
e-mail: mpetti@meca.polymtl.ca
M. J. Pettigrew, Fellow ASME
Atomic Energy of Canada Limited, Chalk River Laboratories, Chalk River, Ontario K0J 1J0 Canada
Search for other works by this author on:
C. E. Taylor
Atomic Energy of Canada Limited, Chalk River Laboratories, Chalk River, Ontario K0J 1J0 Canada
e-mail: taylorc@aecl.ca
M. J. Pettigrew, Fellow ASME
Atomic Energy of Canada Limited, Chalk River Laboratories, Chalk River, Ontario K0J 1J0 Canada
e-mail: mpetti@meca.polymtl.ca
Contributed by the Pressure Vessels and Piping Division and presented at the Pressure Vessels and Piping Conference, Boston, Massachusetts, August 1–5, 1999, of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the PVP Division, January 18, 2000; revised manuscript received March 7, 2000. Technical Editor: S. Y. Zamrik.
J. Pressure Vessel Technol. Nov 2000, 122(4): 509-514 (6 pages)
Published Online: March 7, 2000
Article history
Received:
January 18, 2000
Revised:
March 7, 2000
Citation
Taylor, C. E., and Pettigrew, M. J. (March 7, 2000). "Random Excitation Forces in Heat Exchanger Tube Bundles ." ASME. J. Pressure Vessel Technol. November 2000; 122(4): 509–514. https://doi.org/10.1115/1.1286040
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