6. A shaft is to be designed for a linkage of a windshield wiper mechanism for a truck. A 20-N force (F1) is applied to lever 1, which is mounted onto the shaft, by an adjacent link. The reaction force (F2) on lever 2, which is also mounted onto the shaft, is transmitted to another link. The distance (d) between elements is 20 mm. Use SAE 1137 cold-drawn steel for the shaft material. (15' in total) 1) Show the torque distribution from A to D. 2) Plot the shear and bending moment diagrams for the A-B-C-D region of the shaft. 3) Determine the minimum acceptable diameters for the shaft at point C. Take C₁ = 0.9, CR = 0.75, design factor N = 3, stress concentration factor K₁ = 2. Kt/nx y Fi Lever 1 60 mm Schematic Figure for Problem #6 D Lever 2 40 mm

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6 a shaft is to be designed for a linkage of a windshield wiper mechan

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6. A shaft is to be designed for a linkage of a windshield wiper mechanism for a truck. A 20-N force (F1) is applied to lever 1, which is mounted onto the shaft, by an adjacent link. The reaction force (F2) on lever 2, which is also mounted onto the shaft, is transmitted to another link. The distance (d) between elemen