上游充通大学 Transformations of PKC SHANGHAI JIAO TONG UNIVERSITY 5 Any ternary or higher order link can be partially shrunk to a lower- order link by coalescing nodes without any change in the DOF. 6 Complete shrinkage of a higher-order link is equivalent to its removal and DOF will be reduced. Shrunk link Shrunk link 6 6 DOF=1 DOF=1 DOF=1 DOF=0 (o Partial shrinkage of higher link (b)Complete shrinkage of higher link retains original DOF reduces DOF by one FIGURE 2-13 Link shrinkage
Transformations of PKC 5 Any ternary or higher order link can be partially shrunk to a lowerorder link by coalescing nodes without any change in the DOF. 6 Complete shrinkage of a higher-order link is equivalent to its removal and DOF will be reduced. ME357 Design & Manufacturing II
上游充通大学 Transformations of PKC SHANGHAI JIAO TONG UNIVERSITY 77 Crank-slider Guide-bar Slider is rocking Slider is stationar 曲柄-滑块机构 导杆机构 摇块机构 定块机构
Transformations of PKC Crank-slider 曲柄 滑块 构 Guide-bar 杆 构 Slider is rockingSlider is stationa r 曲柄 -滑块 机 构 导 杆 机 构 摇块机构 定块 构机 构
上游充通大学 Transformations of PKC SHANGHAI JIAO TONG UNIVERSITY Lsin 71☑ Tangent MechanismSine Mechanism Ellipse Mechanism 正切机构 正弦机构 双转块机构 椭圆机构 滑块2 机针
Transformations of PKC Tangent MechanismSine Mechanism 弦机构 构 Ellipse Mechanism 正切机构 正 双转块机 构 椭圆机构