Question 1 20 Marks A Four Bar Linkage With An Open Configuration Is Shown In Figure 1 The Relevant Data For The Link 1 (86.36 KiB) Viewed 43 times
Question 1 (20 marks) A four-bar linkage with an open configuration is shown in Figure 1. The relevant data for the linkage is provided in Table i. 2. 120° Figure 1: Four-bar linkage Link 1 Link 2 Link 3 Link 4 100 mm 40 mm 100 mm 120 mm 02 120° 03 47.3° 04 115.7° W2 az 45 rad/s | Orad/s2 Table 1: Data for four-bar linkage a. Analyse, via vector loop method, the mechanism by determining i. The angular velocity w3 and 4, and ii. The angular accelerations a3 and a4 iii. The acceleration (magnitude and direction) of point A, AA and B, AB. Hint: The accelerations AA, ABA and AB are given by A A = 202 (-sin 8+ jcos 02)-ao (cos82 +jsine) A BA = baz(-sin0z + jcos63)-boš (cos63 + jsin 63) Ap=004(-sin 04 + jcos 04)-cocos 04 +jsin + + b. Demonstrate graphically by sketching any one of the possible toggle positions of the above mechanism. Label the links in your sketch clearly.
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+ + b. Demonstrate graphically by sketching any one of the possible toggle positions of the above mechanism. Label the links in your sketch clearly.