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QUESTION 1 (30 marks) XX=30 (a) Design a slider crank mechanism that has a linear displacement of 20 cm with an offset of XX cm. i. Sketch your mechanism with appropriate dimensions. ii. Calculate the minimum time taken to move the slider between the two extreme ends, if the input link rotates at 20 rpm CCW. iii. Using complex algebra method, estimate the acceleration of the slider if the input link rotates uniformly at 20 rpm CCW when input angle is at 30°. (b) A courier warehouse plans to use a four-bar mechanism to move a box of parcels from point A to point B as shown in Figure 1 before the parcels go through the automatic parcel sorting system. Design the four-bar mechanism to move the box from position A to B. XX=30 60°

          QUESTION 1 (30 marks) XX=30
(a) Design a slider crank mechanism that has a linear displacement of 20 cm with an offset of XX cm.
i. Sketch your mechanism with appropriate dimensions.
ii. Calculate the minimum time taken to move the slider between the two extreme ends, if the input link rotates at 20 rpm CCW.
iii. Using complex algebra method, estimate the acceleration of the slider if the input link rotates uniformly at 20 rpm CCW when input angle is at 30°.
(b) A courier warehouse plans to use a four-bar mechanism to move a box of parcels from point A to point B as shown in Figure 1 before the parcels go through the automatic parcel sorting system. Design the four-bar mechanism to move the box from position A to B.
XX=30
60°

QUESTION 1 (30 marks) XX=30
(a) Design a slider crank mechanism that has a linear displacement of 20 cm with an offset of XX cm.
i. Sketch your mechanism with appropriate dimensions.
ii. Calculate the minimum time taken to move the slider between the two extreme ends, if the input link rotates at 20 rpm CCW.
iii. Using complex algebra method, estimate the acceleration of the slider if the input link rotates uniformly at 20 rpm CCW when input angle is at 30°.
(b) A courier warehouse plans to use a four-bar mechanism to move a box of parcels from point A to point B as shown in Figure 1 before the parcels go through the automatic parcel sorting system. Design the four-bar mechanism to move the box from position A to B.
XX=30
60°

Added by Nieves L.

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