| 平面五杆机构双曲柄存在的充要条件研究 |
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| 引用本文： | 李学刚,黄永强,冯丽艳.平面五杆机构双曲柄存在的充要条件研究[J].机械科学与技术(西安),2005,24(1):51-53. |
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| 作者姓名： | 李学刚 黄永强 冯丽艳 |
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| 作者单位： | 河北理工学院机械系 唐山063009
(李学刚，黄永强)，河北理工学院机械系 唐山063009(冯丽艳) |
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| 摘 要： | 从五杆机构的装配条件出发,研究五杆机构双曲柄存在的充要条件,完整提出五杆机构双曲柄存在的充分条件,分析了研究五杆机构双曲柄存在必要条件的必要性,并建立了研究必要条件的一般方法。给出了lBD的极值与杆长和两个输入运动规律之间的通用关系式,并进行了数值计算验证结论的正确性。对五杆机构的设计和分析具有指导意义。
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| 关 键 词： | 五杆机构 双曲柄 充分必要条件 |
| 文章编号： | 1003-8728(2005)01-0051-03 |
Study of the Sufficient and Necessary Conditions for Existence of Double Crank of Planar Five-Bar Mechanism |
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| LI Xue gang,HUANG Yong qiang,FENG Li yan.Study of the Sufficient and Necessary Conditions for Existence of Double Crank of Planar Five-Bar Mechanism[J].Mechanical Science and Technology,2005,24(1):51-53. |
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| Authors: | LI Xue gang HUANG Yong qiang FENG Li yan |
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| Abstract: | This paper studied the sufficient and necessary conditions for existence of double crank of planar five bar mechanism. We present the sufficient conditions of double crank of planar five bar mechanism, and analyze the necessity of studying the necessary conditions for existence of double crank. Then we propose the method for studying the necessary conditions. The formulations of L BD ′s extreme value, the length of bar, and input movement are given. The formulations are verified with numerical calculations. Those conclusions are significant to the study and design of five bar mechanisms. |
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| Keywords: | Five-bar mechanism Double crank Sufficient and necessary conditions |
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