Natural Frequencies of Plate Supported Thermowells

Author:

Bartran David S.1

Affiliation:

1. Mem. ASME Exothermics, Inc., 14 Columbia Drive, Amherst, NH 03031 e-mail:

Abstract

An idealized model of a welded-flange thermowell is used to establish the role of flange thickness in natural frequency estimates. It is found that for thermowell diameters comparable to flange thickness, the support compliance of the thermowell/flange interface approaches that expected for a semi-infinite support. This allows the interface to be treated as a boundary condition rather than requiring a detailed deflection analysis of the flange. This finding is supported by published measurement data and independent finite element calculations for rigidly supported, welded-flange thermowells.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference14 articles.

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2. Bending Deflection of a Circular Shaft Terminating in a Semi-Infinite Body;ASME J. Appl. Mech.,1962

3. Support Flexibility and Natural Frequencies of Pipe Mounted Thermowells;ASME J. Pressure Vessel Technol.,2014

4. Melnikov, Y. A., 2002, “Computing Green's Functions of Biharmonic Equation for Multiply Connected Regions,” International Association for Boundary Element Methods, UT Austin, TX, May 28–30, pp. 1–12.

5. An Analytical Approach for the Greens's Functions of Biharmonic Problems With Circular and Annular Domains;Cambridge J. Mech.,2009

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Errata: “Natural Frequencies of Plate Supported Thermowells” [ASME J. Pressure Vessel Technol., 137(2), p. 024502; DOI: 10.1115/1.4028703];Journal of Pressure Vessel Technology;2023-11-30

2. Modal Analysis of Flange-Mounted Thermowells;Journal of Pressure Vessel Technology;2019-10-09

3. Vibration analysis and control of a screw compressor outlet piping system;Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering;2018-03-22

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