NUMERICAL SIMULATION OF BUCKLING ANALYSES AND OPTIMIZATION FOR GRID-STIFFENED CYLINDRICAL SHELLS

摘要：

Grid-stiffened cylindrical shells are cylinders with stiffeners which can significantly increase the buckling load of a cylinder without much increase in its weight. Numerical simulation was conducted for calculating its buckling load of a grid-stiffened cylindrical shell using finite element method. Parametric studies were investigated for the cylindrical shell on the influences of the grid spacing, the stiffener’s size and the skin thickness; respectively. Some optimal parameters were obtained which minimize the structure weight under a given buckling load. In the simulation, there are two main buckling modes, i.e., local buckling mode and global buckling mode. Numerical results indicate that high buckling load is reached when the global buckling mode dominates while the local buckling mode is suppressed. In other words, the global buckling mode should be used as the design criteria for a stiffened cylindrical shell.

作者: Shi B.J. Shu D.W. Zhang Y.M. Yuan W.S.

作者单位: School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, China;Sc School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798. School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, China.

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）