23. For the four-link mechanism shown in Fig. 2.60, find the angular velocities of the links BC and CD using the instantaneous centre method. (1.3 rad/s, 3.07 rad/s) C 150 75° A 250 D 6 rad/s 100 B Fig. 2.60
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- Angular velocity of link AB, ω_AB = 6 rad/s - Length AB = 100 mm - Length BC = 250 mm - Length CD = 150 mm - Angle ∠ABC = 75° Show more…
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23. For the four-link mechanism shown in Fig. 2.60, find the angular velocities of the links BC and CD using the instantaneous centre method. (1.3 rad/s, 3.07 rad/s)
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5. (20) For the mechanism shown, the angular velocity of link AB is ̉ωAB = 2 rad/s clockwise. For the position indicated, determine the angular velocities of links BC and CD and the velocity of point C. Ans. ωBC = 1.386 rad/s, ωCD = 1.732 rad/s, vC = 0.1386 m/s
In a four-bar mechanism, the dimensions of the links are given as AB = 50 mm, BC = 66 mm, CD = 56 mm, and AD = 100 mm. At a given instant when ∠DAB = 60°. The angular velocity of link AB is 10.5 rad/s in the counterclockwise direction. Determine: (i) the velocity of point C, (ii) the velocity of point E on link BC when BE = 40 mm, (iii) the angular velocity of link BC and CD, (iv) the velocity of an offset point F on link BC if BF = 45 mm, CF = 30 mm, and BCF is read clockwise, (v) the velocity of an offset point G on link CD if CG = 24 mm, DG = 44 mm, and DCG is read clockwise. (20 Marks)
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