...刊网 关键词：虚拟样机；主拱；竖转；多项式插值；动力学仿真；MSC Adams [gap=1015]Key words：virtual prototype；main arch；vertical rotation；polynomial interpolation；dynamic simulation；MSC Adams ..
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几何非线性对主拱结构稳定性能的影响不大；
The safe stability coefficient only decreased a little when taking into account geometrical nonlinearity.
飞鸟式拱的钢管混凝土主拱可简化为固定拱计算。
The main arch of "fly-bird-type" CFST arch bridge can be considered as fixed arch to calculate.
并且，钝体截面的主拱在低风速下容易产生涡激振动。
The vortex shedding vibration will take place at the relative low wind speed because of arches blunt section.
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