圈上海文通大华 Cam Synthesis 口 Cam motion program often defined by several separate functions >Each defines follower behavior over one segment of cam piecewise functions; >s,v,a must have no discontinuities in them; >j must be finite; Cycloidal and Polynomial functions 圈上泽夫道大学 Cycloidal Displacement It is normally more appropriate to start by defining the acceleration function ▣ Consider full sinusoid(正弦曲线)as acceleration function a=Csin 2π B a acceleration function C=constant defining amplitude of sine wave 0=camshaft angle,independent variable B=total angle of rise interval Has zero magnitude at each end to match dwell segments which adjoin it cam angleθ 1414 Cam Synthesis  Cam motion program often defined by several separate functions  Each defines follower behavior over one segment of cam piecewise functions;  s,v, a must have no discontinuities in them;  j must be finite;  Cycloidal and Polynomial functions Cycloidal Displacement  It is normally more appropriate to start by defining the acceleration function  Consider full sinusoid(正弦曲线) as acceleration function a C sin 2           a = acceleration function C = constant defining amplitude of sine wave  = camshaft angle, independent variable = total angle of rise interval  Has zero magnitude at each end to match dwell segments which adjoin it