ISSN: 2536-4480

Year: 2017 Volume: 1 Issue: 2 Page: 89-99

doi: 10.15659/ijaat.17.04.505

MAIN PARAMETERS OF CAM PROFILE AND EFFECTS ON BEHAVIOR OF THE CAM PERFORMANCE

OĞUZHAN YILDIZ, CİHAN DEMİR

In scope of this study, main parameters of cam profile are determined. Also, their effects on cam performance are examined starting with valve lift, velocity, acceleration curve. In order to be seen clearly cam behavior and obtain to needed smooth curve thanks to less jerk of cam follower, different valve lifts are calculated but more importantly one of the most critical design criteria on cam profile, acceleration jump as undesired influence, is investigated how to reduce & avoid. Primarily, relations related base circle & nose radius of cam profile, maximum lift of cam follower, lift angle of cam follower and acceleration jump are considered in terms of minimum acceleration jump, continuous contact, valve spring force & contact force-stress. Especially, determination of right valve spring stiffness is significant & affects other main parameters so it is plotted graphs of sudden acceleration change and described how it should be analyzed by analytical & using Matlab

Anahtar Kelimeler (Keywords): Main parameters, cam profile, acceleration jump, cam follower, valve spring

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