Question

c) Calculate the mobility of the mechanism in Figure Q1b. B 7 P 5 Figure Q1b [5 marks]

Answer 1

B 7 •P 81 5 2 은 6 No. of links (n). No of Binary Because tixed Joints 8 (A,D are consider as one link) =D, P are the binary Joints 2 A, B, C, E are the Ho of Ternary Joints = the ternary Toints Joints I Ternary Joint Joints = 4 2 binay i. 4 Ternary Joints - 482 8 binay Total no. of binary Joints 8+2 (j) There is no higher pair in the Mechanism Chl=0 = 10

Can the Mobility of Mechanism calculated using Kurtzbach criteria formula for planar mechanism F = 3(n-1) -2;-h mobility of Total no no of ; = Total no. of binary Joints (8) No. of Lower pairs No. of higher pairs where F = Mechanism links n = ha Co)- 0 2 i F = 3 (8-1) 21 - 20 LI - F. the Mechanism is one mobility of given