圆筒形真空容器H型加强圈简化设计计算及数值验证

doi:10.13385/j.cnki.vacuum.2024.06.06

Abstract

Abstract: H-type reinforcing ring is widely used in vacuum vessel because of significant improvement of the critical instability pressure of the cylinder. However, the design based on GB 150-2011 standard requires repeated trial calculations and the process is cumbersome. In this paper, the simplified design calculation formula of H-type reinforcing ring for cylindrical vacuum vessel was deduced, and the accuracy of the simplified formula was verified by establishing a numerical calculation model. Finally, through the analysis of the design calculation example, the selection design of the structural parameters of H-type reinforcing ring and its influence on the stability and economy of cylindrical vacuum vessel were studied. The results show that the simplified design calculation formula of H-type reinforcing ring deduced in this paper could meet the requirements of structural stability, and the design and check of H-type reinforcing ring could be carried out quickly by the design curve at a time. Increasing the height and thickness of H-type reinforcing ring could improve the critical instability pressure of the cylinder. Compared with rectangular reinforcing ring, the use of H-type reinforcing ring could reduce the amount of material and improve the economic benefits. The research results can be used to guide the design and calculation of H-type reinforcing ring of cylindrical vacuum vessel and provide theoretical reference for structural integrity evaluation.

Key words: cylindrical vacuum vessel, H-type reinforcing ring, simplified design, buckling analysis, numerical verification

CLC Number: TB756

ZHAO Yan-yi, SHI Cheng-tian, LI Shao-jie, SUN Song-gang, WANG Fei, LI Can-lun. Simplified Design Calculation and Numerical Verification of H-type Reinforcing Ring for Cylindrical Vacuum Vessel[J].VACUUM, 2024, 61(6): 33-37.

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Simplified Design Calculation and Numerical Verification of H-type Reinforcing Ring for Cylindrical Vacuum Vessel

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