优筋布置矩形箱体应力及变形分析

摘要针对工业生产中矩形箱体笨重、加筋结构布置设计欠佳的问题,采用ANSYS APDL语言对矩形箱体进行静压工况下应力及变形分析。选取6因素5水平正交试验方案,以矩形箱体最大一次应力S_1max、最大等效应力S_2max以及最大变形量Δ_max作为试验指标,侧壁加强铁间距A、宽度B及厚度C,端壁加强铁间距D、宽度E及厚度F作为试验因素,结合矩阵分析法获得加强筋的优筋布置方案A₄B₅C₅D₂E₅F₂,并用ANSYS一阶优化算法对箱壁以及箱壁加强铁壁厚进行优化。结果表明:矩形箱体采用优筋布置后,箱体质量减少了27%。最后采用极限载荷分析法通过P_T=0.1 MPa试验工况验证。

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	张帅
	李庆生

关键词：矩形箱体应力及变形分析优筋布置一阶优化极限载荷分析法

Abstract： For the problems caused by the bulky rectangular tank and unreasonable layout design of reinforced structure in engineering, the stress and deformation of rectangular tank are analyzed under static pressure condition by ANSYS APDL. In this paper, six factors and five levels orthogonal test scheme is adopted, in which the maximum primary stress S_1max, maximum equivalent stress S_2max and maximum deformation Δ_max of rectangular tank are taken as test indexes, meanwhile, the spacing A, width B and thickness C of side wall reinforcing iron, and the spacing D, width E and thickness F of end wall reinforcing iron are taken as test factors, and the optimal reinforcement arrangement scheme A₄B₅C₅D₂E₅F₂ is obtained by combining with matrix analysis method, and is optimized by ANSYS first-order optimization algorithm. The results show that the weight of the rectangular tank is reduced by 27% after adopting the optimal reinforcement arrangement. Finally, the limit load analysis method is used to verify the test condition of PT=0.1 MPa.

Keywords： rectangular tank stress and deformation analysis optimal reinforcement arrangement first order optimization limit load analysis method

Received 2021-03-18;

Corresponding Authors: 李庆生,副教授,E-mail:lqsh@njtech.edu.cn。 Email: lqsh@njtech.edu.cn

About author: 张帅(1993-),男,硕士研究生,从事承压设备结构完整性方面的研究。

引用本文:

张帅, 李庆生.优筋布置矩形箱体应力及变形分析[J]. 化学工业与工程, 2022,39(3): 117-126

ZHANG Shuai, LI Qingsheng.Stress and deformation analysis of rectangular tank with optimal reinforcement arrangement[J]. Chemcial Industry and Engineering, 2022,39(3): 117-126

[1] 陈鸿斌. 矩形容器加强筋的合理设计[J]. 石油化工设备, 1994, 23(3): 36-38 CHEN Hongbin. Rational design of stiffeners for rectangular vessels [J]. Petro-Chemical Equipment, 1994, 23(3): 36-38(in Chinese)
[2] BLACH A E, HOA V S, KWOK C K, et al. Rectangular pressure vessels of finite length[J]. Journal of Pressure Vessel Technology, 1990, 112(1): 50-56
[3] 李其朋, 陈国华, 张瑞华. 基于MATLAB的矩形截面压力容器优化设计[J]. 压力容器, 2008, 25(4): 28-32 LI Qipeng, CHEN Guohua, ZHANG Ruihua. The optimum design of pressure vessel with rectangular cross section based on MATLAB[J]. Pressure Vessel Technology, 2008, 25(4): 28-32(in Chinese)
[4] 孟利宏. 大型矩形容器的加强结构优化设计[J]. 化工管理, 2017(21): 203-204, 62 MENG Lihong. Optimization design of reinforced structure for large rectangular vessels[J]. Chemical Enterprise Management, 2017(21): 203-204, 62(in Chinese)
[5] 高明, 李庆生, 刘敏捷. 基于正交试验与APDL的SF₆变压器气箱结构优化[J]. 化工机械, 2018, 45(1): 102-108 GAO Ming, LI Qingsheng, LIU Minjie. Structural optimization of SF₆ transformer gas box based on orthogonal test and APDL[J]. Chemical Engineering & Machinery, 2018, 45(1): 102-108(in Chinese)
[6] 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. 油浸式电力变压器技术参数和要求 GB/T 6451—2015[S]. 北京: 中国标准出版社, 2016
[7] 魏效玲, 薛冰军, 赵强. 基于正交试验设计的多指标优化方法研究[J]. 河北工程大学学报(自然科学版), 2010, 27(3): 95-99 WEI Xiaoling, XUE Bingjun, ZHAO Qiang. Optimization design of the stability for the plunger assembly of oil pumps based on multi-target orthogonal test design[J]. Journal of Hebei University of Engineering(Natural Science Edition), 2010, 27(3): 95-99(in Chinese)
[8] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会. GB 150-2011,压力容器[S].北京: 中国标准出版社,2011
[9] 中华人民共和国机械工业工业部. 钢制压力容器分析设计标准 JB 4732-1995[S]. 北京: 中国机械工业出版社, 1995