Problem 4 Consider the follower has the following motion characteristics: Rise to h= 40 mm with a cycloidal motion for 0
Posted: Mon May 16, 2022 5:48 am
Problem 4 Consider the follower has the following motion characteristics: Rise to h= 40 mm with a cycloidal motion for 0=0ºto 120. Dwell at h = 40 mm for 0 - 120 to 0-240 Return (fall) to 0 mm with a harmonic motion for 0=240° to 0=360° (a) Fill the following table 0 (0) 0 30 60 90 120 240 270 300 330 360 y (mm) 0 0 (b) Draw the cam profile for inline radial roller follower of radius R-15 mm. The base circle radius is 25 mm and the cam is rotating clockwise. (c) Sketch roughly the following diagrams (versus cam angle (0) where 0 0 < 360) o follower displacement diagrams o follower velocity diagram o follower acceleration diagram,
Types of follower motions Uniform motion (Rise) Uniform motion (Fall) Uniform motion for a translating follower rising to h for Uniform motion for a translating follower returning from 0 to from h for from 0 to R y V - 00 8 = 0 Parabolic motion (Rise) Parabolic motion (Fall) Parabolic motion for a translating follower rising to h for Parabolic motion for a translating follower returning O from 0 to A from h for from 0 to 8 for OSOS./2 $4-20) for OSOS P/2 {2009 1 [1-2(3-D) or y = for B/25#SA for B,/2 SOSB 2 2 Harmonie motion (Rise) Harmonic motion (Fall) Harmonic motion for a translating follower rising to for Harmonic motion for a translating follower returning o from 0 to R from h for from 0 to y = - COS » = {{1+c 09 + Cycloidal motion (Rise) Cycloidal motion (Fall) Cicloidal motion for a translating follower rising to le for Cycloidal motion for a translating follower returning from 0 to 8 from h for from 0 to 8 (4) my 20 y 1 sin | 2 TA 1 sin y is the follower displacement, is maximum follower displacement (lift) Note: the value of in the above expressions of y should be shifted to match the initial and final positions,
T: R H To Blo PROREXT Costumes Dark Phe the W PLN ND *** NA NA *** TIGERESA Constant acceleration motion curves
دارم =7 in INH А д Hamm 1 in AV in th n А
Types of follower motions Uniform motion (Rise) Uniform motion (Fall) Uniform motion for a translating follower rising to h for Uniform motion for a translating follower returning from 0 to from h for from 0 to R y V - 00 8 = 0 Parabolic motion (Rise) Parabolic motion (Fall) Parabolic motion for a translating follower rising to h for Parabolic motion for a translating follower returning O from 0 to A from h for from 0 to 8 for OSOS./2 $4-20) for OSOS P/2 {2009 1 [1-2(3-D) or y = for B/25#SA for B,/2 SOSB 2 2 Harmonie motion (Rise) Harmonic motion (Fall) Harmonic motion for a translating follower rising to for Harmonic motion for a translating follower returning o from 0 to R from h for from 0 to y = - COS » = {{1+c 09 + Cycloidal motion (Rise) Cycloidal motion (Fall) Cicloidal motion for a translating follower rising to le for Cycloidal motion for a translating follower returning from 0 to 8 from h for from 0 to 8 (4) my 20 y 1 sin | 2 TA 1 sin y is the follower displacement, is maximum follower displacement (lift) Note: the value of in the above expressions of y should be shifted to match the initial and final positions,
T: R H To Blo PROREXT Costumes Dark Phe the W PLN ND *** NA NA *** TIGERESA Constant acceleration motion curves
دارم =7 in INH А д Hamm 1 in AV in th n А