A force F = 22N acts on a bar of length r = 180 mm (see figure 2.8b), where thet

Question

A force F = 22N acts on a bar of length r = 180 mm (see figure 2.8b), where theta = 68 degree . Find torque about point O. Repeal Problem 2.35 for theta = 2 rad. An in line slider-crank linkage has a crank length r1 and connecting rod length r2 = 1.5r3 (sec Figure 2.9). Find connecting rod and titter position when theta = 40 degree by using analytical methods. Repeat Problem 2.37 for theta = 140 degree. Plot slider position versus theta for an in-line slider-crank linkage where the ratio of connecting rod to crank length is 1.5. Let theta = 0. pi /9, 2 pi /9, pi /3 rod, and so on. The link lengths of a planar four-bar mechanism are -r0 = 120, r1 = 60. r2 = 140, and r3 = 80. Find the orientation of links 2 and 3 when the internal angle between the crank and fixed link is 30 degree and the linkage is in the open phase (i.e., coupler does not cross the fixed link). Use the cross product method.

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