The dimensions of the mechanism for hydraulic riveter, as shown in Fig.2.20(a), are: \(O A=200 \mathrm{~mm}\), \(A B=210 \mathrm{~mm}, A D=550 \mathrm{~mm}\) and \(B C=330 \mathrm{~mm}\).

Determine the velocity ratio between the piston \(C\) and ram \(D\). Also calculate the efficiency of the machine if a load of \(3 \mathrm{kN}\) on piston \(C\) causes a thrust of \(4.5 \mathrm{kN}\) at ram \(D\).

Transcribed Image Text:

45 250 mm C 444 B d (a) Configuration diagram Fig.2.20 Hydraulic riveter (b) Velocity diagram V=Vc b.c Vba