Ruestion 3 The combined pulleys in Figure 3 use friction to transmit motion. If block A has a linear displacement of 0.2 m downward, determine: I. the angular displacement of pulleys B, C and D, and II. the linear displacement of E. 2 0.24 m 2 0.3 m 200 mm 2 120 mm- 2 0.1 m 2 80 mm E-
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HOW TO SOLVE THE GIVEN PROBLEMS?
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- The crank-rocker mechanism shown has lengths n = 9 in, r2 = 2 in, r3 = 7 in, andr4= 10 in. Find the angular displacement Aa that crank OA makes to move the rocker OpB from the extreme right to the extreme left position. Crank OAA rotates counterclockwise as shown. Write your answer in degrees but do not write the units. B A 0B Answer. DELLIn the image on the right, there is a red gear G1 on the left with a radius of r1 = 2.81cm. Gear G1 is locked to the green gear G2 with a radius of r2 = 0.734cm. Gear G2 then shares the same axle as the blue circular saw G3, which has a radius of r3 known to make a full rotation every T = 0.836s. Using at least 6 significant digits in your calculations, compute the following: V3! 12.8cm. Gear G1 is W1 a) The angular speed wi of gear G1. Remember that angular speed is measured in radians per T3 r2 unit time. G2 b) The rim speed vi of gear G1. Since gears G1 and G2 are locked together, the rim speed of G2 is also v1. G1 G3 c) The angular speed w2 of gear G2. Since gear G2 and saw G3 share the same axle, the angular speed of G3 is also w2. d) The rim speed v3 of saw G3.The offset slider-crank mechanism 50 mm, R3 = Ro 20 mm, R₂ = Write the loop closure equation. Solve for the position of the slider 4 as a function of 0₂. = O 2 is driven by the rotating crank 2. 140 mm B 3 4 OC X
- Q1. In a link work, as shown in Fig. below, the crank A B rotates about A at a uniform speed of 150 r.p.m. The lever DC oscillates about the fixed point D, being connected to A B by the connecting link BC. The block F moves, in horizontal guides being driven by the link EF, when the crank A B is at 30°. The dimensions of the various links are: AB = 150 mm; BC = 450 mm; CE = 300 mm; DE = 150 mm; and EF = 350 mm. Find, for the given configuration, find 1- angular acceleration of link DC, and 2- acceleration of slider F. 75 mm www 450 mm 37,5 mm APulleys 1 and 2 of the rope and pulley system are connected and rotate as a unit. The radii of pulleys 1 and 2 are 100 mm and 300 mm respectively. Rope A is wrapped around pulley 1 and is fastened to pulley 1 at A’. Rope B is wrapped around pulley 2 and is fastened to pulley 2 at B'. Rope C is continuous over pulleys 3 and 4. Each rope as a diameter of 15 mm. Determine the normal stress in each segment of rope C if the weight has a mass of 225 kg. B'A' B T WThere is a pirate ship in the harbor which features a large, cast iron wheel that is used to steer the ship. As shown in the figure above, this wheel features spokes with a length of R = 0.83 meters, configured as shown. Star symbols indicate specific points on the wheel (labelled A, B, C, D, and E). The moment of inertia of this wheel is I = 12.2 kg⋅m2.The wheel spins around a gear mechanism attached at its center. The gear mechanism has sufficient resistance (due to friction and other factors) that anyone trying to turn the wheel feels a counter-torque of τres = 10 N⋅m. After the wheel begins moving, a constant resisting torque of τres = 10 N⋅m is still felt. Someone applies a a tourque of 33.7N*mvto the wheel for five seconds, if the wheel starts at rest what is it anuglar momentum after five seconds? If the wheel is now spinning at 1 rad/sec what is the magnitude of the tourque to keep it spinning? What is the total kinetic magnitude of the wheel ( the mass is 4kg)
- The block in the figure slides in the slot in the fixed piece 1. Axis Q2 of crank Q2A is fixed on 1. AB = 4 ½ inches. Q2A and rotates in a clockwise direction. It is desired that the extreme right position of B (also the original position of the mechanism) be 6 inches to the right of a vertical line through Q2. It is proposed to make this change by altering the length of Q,A, with all the dimensions mentioned to be the same (1) Draw the linkage based on the conditions in the problem and show the degrees turned through by the crank between extreme positions. (2) Find the length of Q2A. (3) Find the other extreme position. (4) Find the length of the stroke of B. Use Kg: 1 in. = 1 in. Q2 1 Bo4 DEGREES ANGULAR DISPLACEMENT FROM A' TO A" = DEGREES ANGULAR DISPLACEMENT FROM A" TO A' = INCHES LENGTH OF Q2A = INCHES HORIZONTAL DISTANCE FROM Q2 TO B" = INCHES LENGTH OF STROKE OF B =The inverted crank-slider shown has crank AB 3 in and ground link AC = 6 in. Find the re-rocking angle AO, of rod 4 between its extreme right and extreme left positions. Write your answer in degrees but do not write the units. A C DELLThe triangular plate is fixed at its base, and its apex A is given a horizontal displacement of 5 mm. Suppose that a= 640 mm
- PROBLEM 2: The crank shown is free to rotate at B about the x-axis only. Given the following dimensions: x1 = 53 cm x2 = 25 cm Y₁ = 74 cm 2₁ = 29 cm A 100-N force is applied at A with the following spatial angles: From positive x-axis: a = 64° From positive y-axis: B = 119° It is known that the angle from positive z-axis is obtuse, 90° ≤ y ≤ 180⁰ Required: 1. Determine the moment about B due to the applied force at A. INCLUDE (-) NEGATIVE SIGN IF NECESSARY, FOR THIS ITEM ONLY. MA = k N-m use 2 decimal places 2. Determine the component of the force along line AB. 1+ 8= j+ PAB = Nuse 2 decimal places 3. Find the angle between the force applied and its component along line AB. use 3 decimal placesO 29 cm O Answer Not Available Clutch Disk Radius * O 130 mm and 150 mm O 126 mm and 154 mm O 120 mm and 130 mm O 150 mm and 170 mm O 100 mm and 130 mm O 117 mm and 127 mm O Answer Not Available Spring Wire Diameter BO 3.897 mm Spring Wire Diameter * O 3.897 mm 4.989 mm O 5.029 mm O 6.984 mm O 3.098 mm 3 mm O 5.789 mm 4 mm O Answer Not Available O O O O O O O O OFor a Davis steering gear, the gear's track arm is at a distance of 160 mm from the front main axle and the difference between their lengths is 100 mm. If the distance between steering pivots of the main axle is 2 m a) find the inclination of the track arms to the longitudinal axis of the vehicle b)determine the length of the chassis between the front and the rear wheels.