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Buckling Optimization of Curved Grid Stiffeners through the Level Set Based Density Method: 《Computer Modeling in Engineering & Sciences》2024年第7期711-733,共23页Zhuo Huang Ye Tian Yifan Zhang Tielin Shi Qi Xia; supported by the National Natural Science Foundation of China(Grant Nos.51975227 and 12272144).; Stiffened structures have great potential for improvingmechanical performance,and the study of their stability is of great interest.In this paper,the optimization of the critical buckling load factor for curved grid s...; 关键词：STIFFENER buckling optimization shape and cross section level set based density

Free Vibration of Stiffened Plate with Cracked Stiffeners: 《Advances in Applied Mathematics and Mechanics》2024年第1期253-278,共26页Jian Xue Lihua Chen Yue Sun Wei Zhang; supported by the national natural science foundation of China,project Nos.11972053 and 11772013。; In this paper,a new cracked stiffener model for the stiffener with a partthrough and open crack is proposed,considering the compatibility condition of displacements between the plate and the stiffener.Based on the fir...; 关键词：Free vibration stiffened plate cracked stiffener model CRACK Ritz method

Layout design of thin-walled structures with lattices and stiffeners using multi-material topology optimization被引量：3: 《Chinese Journal of Aeronautics》2023年第4期496-509,共14页Yang LI Tong GAO Qianying ZHOU Ping CHEN Dezheng YIN Weihong ZHANG; supported by the National Natural Science Foundation of China(No.12172294,51735005,12032018).; In this paper,the thin-walled structures with lattices and stiffeners manufactured by additive manufacturing are investigated.A design method based on the multi-material topology optimization is proposed for the simul...; 关键词：Layout design Thin walled structures Topology optimization LATTICE STIFFENER

带内部支撑结构的低压排汽缸气动性能分析: 《风机技术》2023年第1期24-30,共7页钱小东邰骁刘庆龙边超胡瑞刘海涛王晓放; National Natural Science Foundation of China(52005074);Natural Science Foundation of Liaoning Province(2022-MS-135)。; The static pressure recovery of low-pressure exhaust hood is important for the overall effectiveness of steam turbines.The tubular and plate stiffeners inside the exhaust contribute to the structural safety of exhaust...; 关键词：Exhaust Hood Complex Flow STIFFENERS Static Pressure Recovery

Influence of local stiffeners and cutout shapes on the vibration and stability characteristics of quasi-isotropic laminates under hygro-thermo-mechanical loadings: 《Defence Technology（防务技术）》2022年第12期2107-2124,共18页T.Rajanna K.S.Subash Chandra K.Venkata Rao; The perforated stiffened panel is generally found as a sub-component of sophisticated structures.The fundamental purpose of this panel is to withstand against buckling under complicated loading and environmental condi...; 关键词：Locally stiffened panels Buckling VIBRATION Cutouts HETEROSIS Hygrothermal environment

Constructal design method dealing with stiffened plates and symmetry boundaries: 《Theoretical & Applied Mechanics Letters》2020年第5期366-376,共11页Rodrigo R.Amaral Grégori S.Troina Cristiano Fragassa Ana Pavlovic Marcelo L.Cunha Luiz A.O.Rocha Elizaldo D.dos Santos Liércio A.Isoldi; the CAPES(Coordination for the Improvement of Higher Education Personnel),finance code 001;FAPERGS(Foundation for Research Support of the State of Rio Grande do Sul),CNPq(Brazilian National Council for Scientific and Technological Development)and the Italian Minister of Foreign Affairs and International Cooperation(MAECI),as part of the"Two Seats for a Solar Car"international project.; A new computational procedure for modelling the structural behavior of stiffened plates with symmetry boundary conditions is here presented.It uses two-dimensional finite elements as a way to decrease computational ti...; 关键词：Deflection minimization Stress minimization Optimal design Plates with stiffeners Bending

Effect of Orthogonal Stiffeners on the Stability of Axially Compressed Steel Jacking Pipe被引量：1: 《Journal of Shanghai Jiaotong university(Science)》2017年第5期536-540,共5页甄亮陈锦剑王建华乔丕忠; the National Natural Science Foundation of China(Nos.41330633 and 51678360); Load conditions for steel pipe-jacking are complex during the construction stage. The stability of steel jacking pipe has been an increasingly important problem as jacking forces, pipe diameters and jacking distances ...; 关键词：steel pipe-jacking STIFFENERS numerical simulation stability analysis

Bending tests and finite element analysis of lipped channels with complex edge stiffeners and web stiffeners: 《Journal of Central South University》2017年第9期2145-2153,共9页王春刚张壮南贾连光于欣永; Project(51008200)supported by the National Natural Science Foundation of China;Project(2015020575)supported by Natural Science Foundation of Liaoning Province,China;Project(F16-205-1-14)supported by Science and Technology Program of Shenyang City,China; In order to study the bearing capacity and stability behavior of cold-formed steel flexural members with complicated sections,a total of 12 specimens divided into 6 groups were tested,including 3 groups of pure bendin...; 关键词：cold-formed steel channels with complex edge stiffeners web stiffeners bending strength BUCKLING

Nonlinear stability of functionally graded material(FGM)sandwich cylindrical shells reinforced by FGM stiffeners in thermal environment被引量：2: 《Applied Mathematics and Mechanics(English Edition)》2017年第5期647-670,共24页D.V.DUNG N.T.NGA L.K.HOA; Project supported by the Vietnam National Foundation for Science and Technology Development(No.107.02-2015.11); In this paper, Donnell＇s shell theory and smeared stiffeners technique are improved to analyze the postbuckling and buckling behaviors of circular cylindrical shells of stiffened thin functionally graded material （...; 关键词：functionally graded material （FGM） stiffened cylindrical shell sandwich thermal environment

Stiffeners layout design of thin-walled structures with constraints on multi-fastener joint loads被引量：7: 《Chinese Journal of Aeronautics》2017年第4期1441-1450,共10页Jie HOU Jihong ZHU Fei HE Weihong ZHANG Wenjie GUO; supported by National Natural Science Foundation of China (Nos. 11432011, 11620101002);National key research and development program of China (No. 2017YFB1102800);Key Research and Development Program of Shaanxi, China (No. S2017-ZDYF-ZDXM-GY-0035); The purpose of this paper is to present an extended topology optimization method for the stiffeners layout design of aircraft assembled structures. Multi-fastener joint loads and manufacturing constraints are consider...; 关键词：Joint load constraint Manufacturing constraint Stiffeners Thin-walled structures Topology optimization

STIFFENERS