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  賀擁軍   齊冬蓮   董石麟
 （浙江大學(xué)  杭州 310027）

[提要]  首次將遺傳算法( GA)引入雙層圓柱面網(wǎng)殼結(jié)構(gòu)的優(yōu)化設(shè)計(jì)中，實(shí)現(xiàn)了對(duì)網(wǎng)格尺寸、結(jié)構(gòu)厚度、矢跨比的同步優(yōu)化。編制了相應(yīng)的程序，并進(jìn)行了大量的算例分析，結(jié)果證明用GA算法優(yōu)化網(wǎng)殼結(jié)構(gòu)是高效的。
[關(guān)鍵詞]  遺傳算法  圓柱面網(wǎng)殼  優(yōu)化

We firstly proposed that genetic algorithm could be used in the optimization design of double-layer cylindrical latticed shell, which realized the synchronous optimization of the rise/span ratio, grid size and the vault thickness. Through compiling programs and analyzing samples, we have proved the excellent performance of this method.
Keywords:  genetic algorithm; cylindrical latticed shell; optimization