mechanical eng homework 120

mechanical eng homework 120 - O 2 A=CA=100 mm m 3 =7.4 kg a...

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Homework - 119 ME 431 Homework In the mechanism shown below, link 2 rotates at an angular velocity of 20 rad/sec (cw) and angular acceleration of 140 rad/sec 2 (cw). Find the torque which must be applied to link 2 to maintain equilibrium. For the force polygon, use a scale of 1 in. = 100N.
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Unformatted text preview: O 2 A=CA=100 mm m 3 =7.4 kg a 3 =155 rad/sec 2 (ccw) AB=80 mm m 4 =3.2 kg a 4 =0 rad/sec 2 . I G3 =.0205 kg-sec 2-m a G3 =4300 cm/sec 2 (144 o) I G4 =.062 kg-sec 2-m a G4 =7000 cm/sec 2 (180 o ) A B 4 3 2 G 3 C G 4 , O 2 G 2 , Scale: 1" = 2" 15...
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