HOW TO INVENT A 6-BAR WATT-II LINKAGE MECHANISM HAVING A PURELY ROTATING BAR TURNING ABOUT A FICTITIOUS CENTER

机译：如何通过6杆WATT-II链接机构将虚假中心完全旋转

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When a rotating bar has to rotate or to oscillate about a finite but unusable center of rotation, a Watt-II linkage mechanism has to be build containing two or sometimes five linkage parallelograms. The number of parallelograms depends on the size of the rotation-angle. When the angle surpasses 120°, the six-bar has to be made overconstrained through an additional turning--joint leading to even three additional linkage parallelograms. Other solutions without linkage parallelograms have been devised based on four-bars producing a coupler curve approximating part of a circle. An exact but completely different solution is to be found utilizing a generalized focal mechanism also having a bar oscillating or rotating about a fictitious center.

机译：当旋转杆必须旋转或围绕有限但无法使用的旋转中心摆动时，必须建立一个Watt-II连杆机构，其中应包含两个或五个连杆平行四边形。平行四边形的数量取决于旋转角度的大小。当角度超过120°时，必须通过额外的转弯接头使六连杆过度受约束，从而导致甚至三个额外的连杆平行四边形。已经基于产生接近圆的一部分的耦合器曲线的四根杆设计了其他没有链接平行四边形的解决方案。利用通用的聚焦机构还可以找到一种精确但完全不同的解决方案，该聚焦机构也具有一个绕虚拟中心摆动或旋转的杆。

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来源
《Eighth IFToMM International Symposium on Theory of Machines and Mechanisms Vol.1; Aug 28-Sep 1, 2001; Bucharest, Romania》|2001年|p.105-112|共8页
会议地点 Bucuresti(RO);Bucuresti(RO)
作者
Evert A. DIJKSMAN; Frans G.J.SOERS;
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作者单位

VDI-Working-Group for Guide-lines of planar Linkages;

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会议组织
原文格式 PDF
正文语种 eng
中图分类公路运输;
关键词
fictitious center of rotation; device for turning eggs;

机译：虚拟旋转中心；用于转动鸡蛋的装置;

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4. HOW TO INVENT A 6-BAR WATT-II LINKAGE MECHANISM HAVING A PURELY ROTATING BAR TURNING ABOUT A FICTITIOUS CENTER [C] . Evert A. DIJKSMAN, Frans G.J.SOERS IFTOMM International Symposium on Theory of Machines and Mechanisms . 2001

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HOW TO INVENT A 6-BAR WATT-II LINKAGE MECHANISM HAVING A PURELY ROTATING BAR TURNING ABOUT A FICTITIOUS CENTER

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