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液化气船液罐应力分析 被引量:3
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作者 汪庠宝 韩继文 +1 位作者 张圣坤 杨文华 《中国海上油气(工程)》 1996年第4期28-35,共8页
用有限元数值方法,对某液化气船的一个C型双联圆筒形液罐进行了应力分析,建立了液罐内部液体压力(静态和动态)的算法,开发了相应的计算程序。最后给出一个典型液罐应力分析的主要结果,并按规范要求做了强度校核。
关键词 液化气船 液罐 液化石油气
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The Brezis–Nirenberg Problem for the Fractional p-Laplacian in Unbounded Domains
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作者 Yan Sheng SHEN 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2023年第11期2181-2206,共26页
In this paper we study the existence of nontrivial solutions to the well-known Brezis–Nirenberg problem involving the fractional p-Laplace operator in unbounded cylinder type domains.By means of the fractional Poinca... In this paper we study the existence of nontrivial solutions to the well-known Brezis–Nirenberg problem involving the fractional p-Laplace operator in unbounded cylinder type domains.By means of the fractional Poincaréinequality in unbounded cylindrical domains,we first study the asymptotic property of the first eigenvalueλp,s(ωδ)with respect to the domainωδ.Then,by applying the concentration-compactness principle for fractional Sobolev spaces in unbounded domains,we prove the existence results.The present work complements the results of Mosconi–Perera–Squassina–Yang[The Brezis–Nirenberg problem for the fractional p-Laplacian.C alc.Var.Partial Differential Equations,55(4),25 pp.2016]to unbounded domains and extends the classical Brezis–Nirenberg type results of Ramos–Wang–Willem[Positive solutions for elliptic equations with critical growth in unbounded domains.In:Chapman Hall/CRC Press,Boca Raton,2000,192–199]to the fractional p-Laplacian setting. 展开更多
关键词 Brezis–Nirenberg problem fractional Poincaréinequality fractional p-Laplacian unbounded cylinder type domains concentration–compactness principle
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