纵向波纹柱形耐压壳屈曲数值分析与试验研究

doi:10.3901/JME.2020.07.164

机械工程学报 ›› 2020, Vol. 56 ›› Issue (7): 164-170.doi: 10.3901/JME.2020.07.164

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纵向波纹柱形耐压壳屈曲数值分析与试验研究

唐文献^1,2, 李胜秋¹, 张建^1,2, 王月阳¹, 王为民¹, 张山¹

1. 江苏科技大学机械工程学院镇江 212003;
2. 江苏科技大学江苏省船海机械先进制造及工艺重点实验室镇江 212003

收稿日期:2019-04-19 修回日期:2019-09-19 出版日期:2020-04-05 发布日期:2020-05-12
作者简介:唐文献,1962年出生,博士,教授。主要研究方向为复杂产品数字化设计制造,海洋工程装备设计理论与方法。E-mail:tangwenxian@163.com;
李胜秋(通信作者),男,1995年出生。主要研究方向为耐压壳屈曲理论研究与应用。E-mail:tanteskid@hotmail.com
基金资助:
国家自然科学基金（51709132）、江苏省自然科学基金项目（BK20150469）资助项目。

Numerical and Experimental Study on Buckling of Longitudinal Corrugated Cylindrical Pressure Shell

TANG Wenxian^1,2, LI Shengqiu¹, ZHANG Jian^1,2, WANG Yueyang¹, WANG Weimin¹, ZHANG Shan¹

1. School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003;
2. Jiangsu Provincial Key Laboratory of Advanced Manufacture and Process for Marine Mechanical Equipment, Jiangsu University of Science and Technology, Zhenjiang 212003

Received:2019-04-19 Revised:2019-09-19 Online:2020-04-05 Published:2020-05-12

摘要/Abstract

摘要： 采用周向或轴向波纹，增强圆柱形耐压壳(简称圆柱壳)的承载能力已备受关注。采用数值与试验结合的方法，研究等容积圆柱壳和纵向波纹柱形耐压壳(简称波纹柱壳)的屈曲特性。首先，建立波纹柱壳的几何模型和数值模型，分析均布外压作用下，波纹参数变化对波纹柱壳屈曲特性的影响规律；其次，依据承载能力进行波纹参数优化设计，并制造两组等壁厚和等容积的圆柱壳和波纹柱壳实物模型；再次，测量两种模型的实际几何数据，分别建立其数值模型，并进行屈曲特性分析；最后，对圆柱壳和波纹柱壳的实物模型进行静水压力试验，与数值结果作对比分析。结果表明：均布外压下，等容积纵向波纹柱壳的屈曲性能优于柱形壳，其平均屈曲载荷提高了56.8%，纵向波纹改善了圆柱壳的承载能力。

关键词: 均布外压, 柱形耐压壳, 纵向波纹, 屈曲特性

Abstract: Strengthening the carrying capacity of cylindrical pressure-resistant shells by adding circumferential or axial corrugations has received considerable research attention. The buckling behaviors of cylindrical shell and longitudinal corrugated cylindrical shell with equal volume are studied using numerical and experimental methods. Firstly, the geometric and numerical models of the corrugated cylinder shell are established, and the influence of the corrugation parameters on the buckling of the corrugated cylinder shell under uniform external pressure is analyzed. Secondly, two sets of cylindrical and corrugated cylindrical shells with equal wall thickness and volume are designed and manufactured after the parameter optimization of corrugation. Then, the outer surfaces of these fabricated shells are scanned and transformed into numerical models to investigate their buckling characteristics. Finally, each model is slowly loaded to collapse under quasistatic pressure in a cylindrical pressure vessel and the relationship of collapse loads and numerical buckling loads is analyzed. The results show that the buckling performance of the longitudinal corrugated cylinder shell is better than that of the cylindrical shell, and the magnitude of the average buckling loads has a 56.8% increase. The buckling capacity of cylindrical shell can be significantly improved by addition of longitudinal corrugated stiffener.

Key words: uniform external pressure, cylindrical shell, longitudinally corrugated stiffener, buckling

中图分类号:

U661

唐文献, 李胜秋, 张建, 王月阳, 王为民, 张山. 纵向波纹柱形耐压壳屈曲数值分析与试验研究[J]. 机械工程学报, 2020, 56(7): 164-170.

TANG Wenxian, LI Shengqiu, ZHANG Jian, WANG Yueyang, WANG Weimin, ZHANG Shan. Numerical and Experimental Study on Buckling of Longitudinal Corrugated Cylindrical Pressure Shell[J]. Journal of Mechanical Engineering, 2020, 56(7): 164-170.

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纵向波纹柱形耐压壳屈曲数值分析与试验研究

Numerical and Experimental Study on Buckling of Longitudinal Corrugated Cylindrical Pressure Shell

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