Design of a Linkage System to Write in Cursive
Design of a Linkage System to Write in Cursive
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DOI：
10.1115/1.4037229
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发表时间：
2017-09
期刊：
影响因子：
--
通讯作者：
Yang Liu;J. McCarthy
中科院分区：
文献类型：
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作者：
Yang Liu;J. McCarthy
本文提出了一种连杆系统的设计方法，该系统可以跟踪代表草书字母和汉字的平面贝塞尔曲线。本文证明了标准度bezier曲线可以被重新参数化，使其具有三角曲线的形式，可以用一个由2连杆组成的单自由度耦合串联链来绘制。定义手写名称的一系列三次贝塞尔曲线产生一系列跟踪这些曲线的六连杆耦合串行链。然后，我们展示了如何使用三次三角贝塞尔曲线简化该系统，以获得一系列近似贝塞尔曲线系统的四连杆序列链。其结果是一种设计机械系统的方法，可以绘制复杂的平面曲线，如草书字母和汉字。
This paper presents a design methodology for a system of linkages that can trace planar Bezier curves that represent cursive handwriting of the alphabet and Chinese characters. This paper shows that the standard degreenBezier curve can be reparameterized so that it takes the form of a trigonometric curve that can be drawn by a one degree-of-freedom coupled serial chain consisting of 2nlinks. A series of cubic Bezier curves that define a handwritten name yields a series of six-link coupled serial chains that trace these curves. We then show how to simplify this system using cubic trigonometric Bezier curves to obtain a series of four-link serial chains that approximate the system of Bezier curves. The result is a methodology for the design of a mechanical system that draws complex plane curves such as the cursive alphabet and Chinese characters.