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周三啊鐵蟲 (小有名氣)
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[求助]
minimize命令過程中消除group的角速度
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請教一下各位大佬,文獻(xiàn)中計(jì)算雙層納米管的層間滑動(dòng)和旋轉(zhuǎn)勢能面,通過取消兩層納米管質(zhì)心的軸向速度和角速度進(jìn)行minimize結(jié)構(gòu)優(yōu)化實(shí)現(xiàn)的,我看了下fix momentum和fix recenter命令都不會(huì)在minimize過程中生效,請問文獻(xiàn)是怎么實(shí)現(xiàn)在minimize過程中能保證兩層納米管不會(huì)發(fā)生層間滑移和旋轉(zhuǎn)的呢?請教師兄說可以用fix planeforce去消除軸向力,角速度需要怎么消除呢,還請各位大佬指點(diǎn) 原文: In the pull-out/rotation potential energy surface calculations (Figure 3) each point has been obtained by placing the two unrelaxed cylindrical nanotube walls at the corresponding relative axial and angular position followed by geometry optimization using FIRE quenched dynamics, while nullifying the center of mass (c.o.m.) axial and angular velocity of each nanotube wall. |
鐵蟲 (小有名氣)
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