WAB OLAB C A 0.2 m 0.1 m B 40°
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- Q1: The crank OA of the offset sli der-crank mech anism rotates with a constant clockwise angul ar velocity o, = 12 rad/s. For the position shown: 1.1 The angular acceleration of link AB and the acceleration of B. 1.2 Locate the instantane ous center of zero velocity (IC) for the link AB. 60° 45° B OA = 75 mm %3D 15° AB = 225 mmTh Give mechanical system as shown. At the instant shown, bar AB has constant clockwise angular velocity 18 rad/s. Give L=216 mm. 1) Determine the magnitude of angular velocity of bar BDE and magnitude of angular velocity of bar CD, unit rad/s? 2) Determine the magnitude of angular acceleration of bar BDE, unit rad/s^2? 3) Determine the magnitude of acceleration of point E, unit mm/s*2? E 90 mm 90 mm В 90 mm A L L 1) Determine the magnitude of angular velocity of bar BDE and magnitude of angular velocity of bar CD, unit rad/s? The magnitude of angular velocity of bar BDE = | rad/s The magnitude of angular velocity of bar CD =| rad/s 2) Determine the magnitude of angular acceleration of bar BDE, unit rad/s*2? The magnitude of normal acceleration of point D with respect to point B = mm/s*2 The magnitude of angular acceleration of bar BDE =| rad/s*2 3) Determine the magnitude of acceleration of point E, unit mm/s*2? The magnitude of acceleration of point E = mm/s*2The bucket of a backhoe is the element AB of the four-bar linkage system ABCD. Assume that the points A and D are fixed and that the bucket rotates with a constant angular velocity WAB = 0.25 rad/s. In addition, suppose that, at the instant shown, point B is aligned vertically with point A, and C is aligned horizontally with B. Determine the acceleration of point C at the instant shown along with the angular acceleration of the elements BC and CD. Let h= 0.66 ft, e= 0-46 ft, l= 0.9 ft, and w= 1.0 ft.
- Drum C is connected to collar A through Bar AB. Point B is directly to the right of center of drum C. The velocity of B is 3 m/s downward while velocity of A is 3 m/s to the left. Bar AB has an angular velocity of 2.83 rad/s. If Drum C in a given instant has an angular velocity of 2.50 rad/s CW is then given an angular acceleration of 1.800 rad/s2 CW what is the magnitude of acceleration of point B?The wheel in the figure rotates clockwise with a constant angular velocity of 120 rpm. The pin Dis fixed to the wheel at a point 125 mm from its center and slides along the guide in the arm AB. Determine: (a) The angular velocity AB (rad/s). b) The angular acceleration AB of the arm at the instant shown (rad/s2). 60 120 грm 375 mm(b) Referred to Figure 2 if piston D is moving at velocity I m/s and acceleration I m/s² in horizontal direction, length AB = 0.4 m, length BD = 0.4 m, determine the angular velocity and angular acceleration of crank AB and link BD at the instant shown. (Merujuk kepada Rajah 2, jika piston D bergerak pada halaju I m/s dan pecutan I mis dalam arah mendatar, panjang AB = 0.4 m, panjang BD = 0.4 m, tentukan halaju sudut dan pecutan sudut aci AB dan anggota BD pada masa yang ditunjukkan. -3. SULIT 0.4 m 0.4 m 90 Vo = 1 m/s 45° 45 an=1 m/s? Figure 2 [Rajah 2]
- Question: At The Instant QA = 5 Rad/S, Pulley A Is Given A Constant Angular Acceleration A = 6 Rad/S... At the instant wA = 5 rad/s, pulley A is given a %3D constant angular acceleration a = 6 rad/s?. Determine the magnitude of acceleration of point B on pulley C when A rotates 2 revolutions. Pulley C has an inner hub which is fixed to its outer one and turns with it. WA A 50 mm 40 mm B 60 mmThe combined pulley shown has two cables wound around it at different diameters and fastened to point A and block E, respectively. Member ABOCD rotates counter clockwise to lift block E. If the total acceleration of point D is 5 in/s²Z45° at the instant shown, determine: a) the angular velocity of member ABCD3; b) the angular acceleration of member ABCD; c) the velocity of block E. Ø5" F Ø3" 5" B C, E 4" 8" 4"The instant shown, bar AB has an angular velocity of 6.5 rad/s and an angular acceleration of 4 rad/s², both clockwise. 200 mm B 75 mm D 175 mm 100 mm A E Determine the angular acceleration of bar BD by using the vector approach. (You must provide an answer before moving to the next part.) The angular acceleration of bar BD is rad/s² clockwise.
- The mechanism used in a marine engine consists of a crank AB and two connecting rods BC and BD. The crank rotates at the constant angular velocity of 5 rad/s. 4.1. 4.2. 0.4 m 60° 0.2 m B 30° 0.4 m 5 rad/s AB in vertical direction Figure 2: Mechanism 45° Draw the space diagram of the mechanism. Determine the velocity and the acceleration of the piston D and C at the instant the crank is in the position shown in Figure 2.The lower portion of a fire ladder (OA) rotates about the hinge at O at a rate of 0.05 rad/s. The angular acceleration of OA is 0.04 rad/s². At the same time, the upper portion (AB) extends out from the lower portion at a velocity of 0.4 m/s and an acceleration of 0.1 m/s². The length of OA is 6 m and the length of AB is 2m. a) Calculate the velocity and acceleration of point B with respect to O. Keep your work in polar coordinates. b) Transform your solutions from Part (a) to Cartesian coordinates if e = t/6. A В 9:03 PM 40°F Clear 2л/2022 Home End F10 PgUP PgDn PrtScn DII Backspace %24 96The system has a pin-connected rod AB, rod BC and disk C. At the instant shown, the disc, with center C, rolls without slipping with an angular acceleration of 6 rad/s counterclockwise. If the velocity of C at this instant is 13 m/s to the left,a. what's the total acceleration of C (m/s^2)b. what's the angular acceleration of rod BC (rad/s^2)c. what's the total acceleration at point B (m/s^2)