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阿基米德螺线

阿基米德螺线 做朗读
拼音ā jī mǐ dé luó xiàn
简拼ajmdlx
笔顺打印阿基米德螺线笔顺打印
汉字拆解阿基米德螺线

词语解释

又称等速螺线”。当一动点沿极径作匀速直线运动，极径又作匀角速旋转时动点的轨迹。设动点的初始位置到极点o的距离为ρ0，则螺线的极坐标方程为ρ=ρ0+aθ，其中a为常数。当ρ０=0时，方程变为ρ=aθ，这时极径和极角成正比。阿基米德螺线在机械凸轮设计中有广泛的应用。

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