The behaviour of a horizontal vessel on loose saddles — a buckling assessment of the support region

Author:

Kendrick S1,Tooth A S2

Affiliation:

1. Admiralty Marine Technology Establishment, Dunfermline

2. Department of Mechanics of Materials, University of Strathclyde

Abstract

By using two computer-based buckling programs, NASTRAN and BOSOR4, the buckling behaviour of the support region of six horizontal storage vessels is assessed. The vessels are supported on twin saddles shown in Fig. 1(a) and of diameter/thickness ratios from 312 to 1154, and lengih radius ratios from 4 to 6.5. They were chosen to provide a range of typical vessels in present use. The specific gravity of the liquid contents required to cause buckling in the support region was obtained by using the computer programs and also by using an equivalent cylinder length with the existing formulations given in the British Pressure Vessel Code, BS 5500 for axisymmetric loading. Comparison of these approaches is used to validate a procedure for finding an allowable buckling stress, hitherto not available for this component.

Publisher

SAGE Publications

Subject

Applied Mathematics,Mechanical Engineering,Mechanics of Materials,Modeling and Simulation

Cited by 5 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. Buckling of un-stiffened cylindrical shell under non-uniform axial compressive stress;Journal of Zhejiang University-SCIENCE A;2002-11

2. A study of the buckling behaviour of horizontal saddle supported vessels;Thin-Walled Structures;1998-01

3. Instability of a cylindrical shell under three-point bending;Thin-Walled Structures;1996-10

4. The background to a new design proposal for saddle supported vessels;International Journal of Pressure Vessels and Piping;1991-01

5. Design Equations for Preventing Buckling in Fabricated Torispherical Shells Subject to Internal Pressure;Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering;1987-05

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