Question

Q-2 The mechanism of a wrapping machine, as shown in Fig. Q-2, has the following dimensions: O₁A = 100 mm; AC = 700 mm; BC = 200 mm; O₃C = 200 mm; O₂E = 400 mm O₂D = 200 mm and BD = 150 mnn. The crank O₁A = a2 rotates at a uniform angular speed of ω2 =100 rad/s.

Determine the magnitude and direction of velocity of the point E (V_E in m/s) of the bell crank lever (DO₂E) by instantaneous center method. (Hint: Determine the fixed and obvious instant centers by inspection, first, and then I₁₃ and I₁₅ by using a circle diagram based on link numbers and by applying the Aronhold Kennedy's theorem. Use appropriate measuring and drawing tools in order to be as accurate as possible!) 

Answer 1