Title:
DESIGN METHOD FOR ALLOWABLE COMPRESSIVE STRESS OF AXIAL COMPRESSION CYLINDER
Document Type and Number:
WIPO Patent Application WO/2023/207055
Kind Code:
A1
Abstract:
The present invention relates to the field of stability design of pressure containers and nuclear engineering main force-bearing components. Disclosed is a new design method for an allowable compressive stress of an axial compression cylinder. Elastic-plastic influence parameters, and structural feature parameters of a cylinder are introduced, such that buckling critical stress values of an axial compression cylinder in different buckling failure modes, and a buckling critical stress reduction factor in which the influence of an initial defect is taken into consideration are obtained. Moreover, a design safety coefficient of the axial compression cylinder is given, and a new calculation process for an allowable compressive stress of the axial compression cylinder is provided. Compared with existing methods, the present invention improves the calculation precision and reduces the design redundancy, has a more direct calculation formula and avoids the iterative calculation of a tangent modulus, has a simple, convenient and efficient design process, has certain advancement, and also has a sufficient safety margin. The present invention is of great significance to promote the large-scale and lightweight development of an axial compression cylinder in engineering.
Inventors:
CHEN ZHIPING (CN)
JIAO PENG (CN)
MIAO HAO (CN)
OU HAIYANG (CN)
ZHU YAO (CN)
JIAO PENG (CN)
MIAO HAO (CN)
OU HAIYANG (CN)
ZHU YAO (CN)
Application Number:
PCT/CN2022/133625
Publication Date:
November 02, 2023
Filing Date:
November 23, 2022
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
G06F119/14
Foreign References:
| CN114896724A | 2022-08-12 | |||
| US20160187230A1 | 2016-06-30 | |||
| CN108509758A | 2018-09-07 | |||
| CN112069588A | 2020-12-11 |
Other References:
"Chinese Standard", 21 November 2011, STANDARDIZATION ADMINISTRATION OF PEOPLE'S REPUBLIC OF CHINA, CN, ISBN: 978-7-5011-9900-6, article ANONYMOUS: "GB 150.1-2011 Pressure Vessels part 1: General Requirements", XP009550368
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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