曲柄摇杆机构，在曲柄转动一周的过程中，有两次与连杆共线，这时摇杆分别处于两极限位置。机构所处的这两个位置称为极位。机构在两个极位时，原动件所在两个位置之间的夹角称为极位夹角θ。
... 桨叶夹角; angle between oars 极位夹角 Crank angle between extreme positions 夹角最小法 minimal angle ...
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...机械,电子文档资料 关键词:偏心距;极位夹角;最小传动角 [gap=3104]Key words:eccentricity;angle between two limited positions;driving angle (Received Date:April 7,2003) ...
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By using Pro/ENGINEER to carry on modleing and stimulating the modle’s moving, it analyses a double crank mechanism and finds its crank angle between extreme positions, then gives a method to prove that double crank mechanism has quick-return characteristics.
运用Pro/ENGINEER对一个具体的双曲柄机构建模并进行运动仿真,找到其极位夹角,从而给出了一种验证双曲柄机构具有急回特性的方法。
参考来源 - 平面连杆机构急回特性讨论·2,447,543篇论文数据，部分数据来源于NoteExpress
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