摘要
目的分析圆柱壳力学性能,验证结构安全性的预报方法。方法设计并建造高强钢环肋圆柱壳精车模型,开展静水外压试验,测量结构的应力应变数据和破坏压力,采用数值模拟方法对结构进行计算。结果试验结果和数值模拟结果基本吻合,采用线性强化弹塑性力学模型可以很好地模拟高强钢的本构关系。试验和计算结果表明,跨中壳板和跨端壳板区域的力学性能是评估环肋圆柱壳结构安全性的重点。结论研究成果可为深海装备耐压结构的设计和相关理论计算方法的建立提供参考,所采用的数值模拟分析方法可为耐压结构的安全性分析提供参考。
The work aims to analyze the mechanical properties of cylindrical shells and verify the prediction method of structural safety.A fine turning model of high-strength steel ring-ribbed cylindrical shell was designed and constructed.The static water external pressure test was carried out.The stress-strain data and failure pressure of the structure were measured.The experimental results were in good agreement with the numerical simulation results.The constitutive relationship of high-strength steel could be well simulated by the linear reinforced elastoplastic mechanics model.The test and calculation results showed that the mechanical properties of the mid-span shell plate and the end-span shell plate were the key points to evaluate the safety of circular ribbed cylindrical shell structures.The research results can provide references for the design of underwater pres-sure-resistant structures and the establishment of relevant design calculation theory methods,and the numerical simulation analysis method established can serve as a reference for the safety prediction of pressure-resistant structures.
作者
高原
赵勰
谢晓忠
姚超凡
陈沙古
卞如冈
黄如旭
GAO Yuan;ZHAO Xie;XIE Xiaozhong;YAO Chaofan;CHEN Shagu;BIAN Rugang;HUANG Ruxu(China Ship Scientific Research Center,Jiangsu Wuxi 214082,China;State Key Laboratory of Deep-sea Manned Vehicles,Jiangsu Wuxi 214082,China;National Key Laboratory of Ship Structural Safety,Jiangsu Wuxi 214082,China;Yantai Taihai Manoir Nuclear Equipment Co.,Ltd.,Shandong Yantai 264000,China)
出处
《装备环境工程》
2025年第8期121-129,共9页
Equipment Environmental Engineering
关键词
环肋圆柱壳
精车模型
强度
稳定性
高强钢
材料非线性
水压试验
circular ribbed cylindrical shell
fine turning model
strength
stability
high strength steel
material nonlinear-ity
hydrostatic test
