Page 84 - Cam Design Handbook
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THB3  8/15/03  12:58 PM  Page 72

          72                       CAM DESIGN HANDBOOK




                       1.0



                   y  h
                    Displacement ratio  0.5              b /b   = p


                                                            2
                                                          1
                                                          0.250
                                                          1.000
                                                          4.000




                        0
                                            0.5                1.0
                                                   q
                                            Ratio p =
                                                   b
                                         (a) Displacement.



                       1.0
                                                              b /b   = p
                                                               1
                                                                 2
                                                                0.250
                   y'  h
                                                                1.000
                    Velocity ratio  0.5                         4.000











                        0
                                            0.5               1.0
                                                   q
                                            Ratio p =
                                                   b
                                            (b) Velocity.
                  FIGURE  3.8.  Skewed  modified  trapezoidal  curve  comparison  (normalized
                  h = 1, b = 1).
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