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齊月芹，張 婷，劉靈靈
(石家莊鐵道學院工程力學系，石家莊050043)[摘要] 將復形法引入大跨度雙層柱面網(wǎng)殼結(jié)構(gòu)的優(yōu)化設計中，建立了柱面網(wǎng)殼結(jié)構(gòu)目標函數(shù)，以網(wǎng)殼結(jié)構(gòu)的網(wǎng)格尺寸、網(wǎng)殼厚度、網(wǎng)殼矢高為設計變量，以桿件的強度和最小截面尺寸為約束條件，編制了相應的程序，并進行了三圓弧網(wǎng)殼結(jié)構(gòu)外形尺寸多種方案的優(yōu)化分析，得出跨度為87m三圓弧網(wǎng)殼的最優(yōu)網(wǎng)格尺寸和最優(yōu)網(wǎng)殼厚度。
[關(guān)鍵詞] 復形法；大跨度圓柱面網(wǎng)殼；優(yōu)化設計Optimal design oflarge span cylindricallatticed shell with complex method
QiYueqin, Zhang Ting, Liu Lingling
( Department of Mechanics, Shijiazhuang Railway Institute, Shijiazhuang 050043, China)Abstract: It proposed that complex method could be used in the optimization design of double-layer cylindrical latticed shell, which establishes the minimum weight objective function, which takes grid size, the vault thickness ,rise highness as design variables and constraints of strength and nunimum cross-section. Through compiling programs and Optimization analyzing samples, It obtains the optimal grid size and vault thickness in the 87 meter span of cylindrical shell.
Keywords: complex method; large span cylindrical latticed shell; optimization design
