1 Semicircular rod 2 = two straight rods 3 = semicircular plate 4" 6" PROBLEM 5/56
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- Show all steps and solution. Fundamentals of machine design problem. no copied answers4-71. For the shaft shown in Figure P4-71, compute the angle of twist of pulleys B and C relative to A. The steel shaft has a diameter of 35 mm throughout its length. The torques are T = 1500 N- m, T, = 1000 N.m, T 500 N. m. The lengths are L = 500 mm, L,=800 mm. %3D %3D %3D4-7 Thx
- The figure shows the chain drive of a bicycle. How far will the bicycle move if the pedals are rotated through 180°? Assume the radius of the bicycle wheel is 12.7 inches. The bicycle will travel approximately (Round to the nearest tenth.) in. C -1.95 in 4.21 in4-34 ThxFigure Q2-2 shows a schematic of a retractable landing gear of aircraft. The retraction mechanism is a 4 bar linkage (O1ABO2), which is actuated by a hydraulic cylinder and piston, D, pivoted at E with a joint at C to link O,A. Hydraulic cylinder & piston D Joint for landing gear wheel Figure Q2-2 Use the Gruebler's equation of DoF (Degrees of Freedom) of a linkage mechanism to assess if the landing gear produces the required retraction motion. 0,02 may be considered as the ground link. i) Hint: The joint of the wheel is not part of the linkage mechanism. The number of DoF may be used to check if it is a linkage with certain motions or a fixed structure. ii) The dimensions of the 4 bar linkage (O1ABO2) are measured as O102 = 800 mm, O1A = 780 mm, AB = 200 mm and O2B = 400 mm. Use Grashof condition to determine the specific type of this linkage. You may find the Gruebler's equation useful: M = 3(L – 1) – 2J where, M is degree of freedom (DoF) L is number of links J is number of joints