The displacement diagram of a radial plate cam with a knife edge follower is shown inFig. 1. If the cam rotates at 6 rev per min, determine the time that it takes toRiseDwell after the riseay ReturnDwell after the returnMake one complete rotationCbBOut stroke-Del-Return stroke-DuelG HCDEFA1234512030KFig. 1NPa 12345612020 mm

Answered: Image /qna-images/answer/4262f9f1-8d7f-4eb9-baab-82ac2b131916.jpg

Answered: The displacement diagram of a radial…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A cam drives a flat reciprocating follower in the following manner. During the first 90° rotation of the cam, the follower moves outward through a distance of 30 mm with SHM. The follower dwells during next 90° cam rotation. During the next 90° cam rotation, the follower moves inward with SHM. The follower then dwells next 90° cam rotation. Draw the cam profile and calculate the maximum values of velocity and acceleration when cam rotates at 10 rad/s.
follower cam R. 15 , If For the nm echanism shownn, R 0.45 m, 0= 10 and o 50 rad/s and angular the cam rotates with angular velocity of acceleration of-20 rad/s at this instant what is the relative acceleration (m/s-) between the face of the follower and the profile of the CAM? Select one Oa.-1211 -991 Oc-880.9
Explore the profile of a disc cam to give uniform velocity during outstroke of 25 mm to a knife edge follower during the first half of the cam revolution. The return of the follower also takes place with uniform velocity during the remaining half of the cam revolution. Shaft diameter is 25 mm. The axis of the knife edge follower passes through the axis of the cam. The cam is rotating with constant rpm.
A cam drives a radial, knife-edged follower through a 68 mm rise in 180° of cycloidal motion. Give the displacement (mm) at 45°. Use 3 decimal places in your calculations. Displacement dingram and derivatives for (ull-rise cycloidal motion, y' y 05 The displacement cquation and the first-, second-, and third-ordcr kincmatic cacffi ients for full-cise cycloidal motion are 270 y = 2x0 y%3= 1cos COS 27L y" sin 2r0 4n2L 2n0 Cos B Answer: 9Type here to search
A radial cam with a reciprocating follower is to be driven by a constant-speed motor at 150 rpm. The follower is to start from a dwell, accelerate to a uniform velocity of 25 in/s, maintain this velocity for 1.25 in of rise, decelerate to the top of the lift, return, and then dwell for 0.10 s. The total lift is to be 3.00 in. Determine the complete specifications of the displacement diagram.
Draw the displacement diagram and profile of the cam operating a roller reciprocating follower and with the following data: Shaft diameter 10 mm; Minimum radius of cam 25mm; lift = 40mm; roller diameter=15mm. The cam lifts the follower for 120° with Simple Harmonic Motion (SHM) followed by a Dwell of 30° .Then follower lowers down during 150° of cam rotation with SHM followed by a Dwell period. If the cam rotates at a uniform speed of 100 RPM clockwise direction. Calculate the maximum velocity and acceleration during the ascent and descent period. Maximum Velocity and Acceleration During Ascent and Descent
Design a cam in non dimensional form consisting of 5 sections, each having the following characteristics: Determine equations for the cam profile for each section and box your answers for clarity. Hint: For each segment write the boundary conditions and apply them to the corresponding equation. Segment 1: (0 < y <) Has a cubic profile: Y = Ay³ + By² + Cy + D Starts from zero Dwells at zero Rises to the height of 4/3 Dwells at the height of 4/3 Segment II: (< y < 1) Dwells at the height of 4/3: Segment III: (1 < y <¹) Has a parabolic profile : Y = Ay² + By + C Starts from the height of 4/3 Dwells at the height of 4/3 Declines to the height of 1 Segment IV: (< <) Has a linear motion: Y = 4y - B Starts from the height of 1 Segment V: (
Q1:- The circular arc cam rotates uniformly at 600 rpm and operates a flat-footed reciprocating follower. The base circle radius= 24 mm, the nose circle radius= 3 mm, the center distance between the base and nose circles = 30 mm and the distance between the pitch circle center to the center of curvature of the circular flank= 120 mm. The follower retaining spring is to be designed so that at the beginning of the nose, the spring force is 10% greater than the value required to hold the follower on the cam, and in the full lift position, the spring force is 5% greater than the required value. Find the spring stiffness and the spring force at the zero lift position if the total mass o the reciprocating parts is 1.25 kg.
A cam drives a radial, knife-edged follower through a 41 mm rise in 84° of cycloidal motion. If the cam is rotating at 232 rpm, determine the velocity (mm/s) at 27°. Use 3 decimal places in your calculations. Displacement dingram and derivatives for full-rise cycloidal motion, y The displacement cquation and the first-, second-, and third-order kincmatic cocffi ients for full-rise cycloidal motion are 1 270 y=L sin y =D(1- 2x0 1-COS B. 27L sin B2 2x0 y!" %3D 47x2L 2n0 Cos Answer: PType here to search
18. The following particulars relate to a symmetrical circular cam operating a flat-faced follower: Least radius = 25 mm ; nose radius = 8 mm, lift of the valve = 10 mm, angle of action of cam = 120°, cam shaft speed 1000 r.p.m. Determine the flank radius and the maximum velocity, acceleration and retardation of the follower. If the mass of the follower and valve with which it is in contact is 4 kg, find the minimum force to be exerted by the spring to overcome inertia of the valve parts. [Ans. 88 mm ; 1.93 m/s, 690.6 m/s², 296 m/s² ; 1184 N]
1. A cam must rise in 3 seconds at constant velocity of 0.25 in/sec in the first segment. Then the follower must return to the zero position in 5 seconds with a full return cycloidal motion and then dwell for 3 seconds in segment 3. The final segment will be a full rise cycloidal motion. The total cycle time is 12 seconds, and the maximum height is in the first segment. Full return cycloidal motion 1 y = L + sin 2π Full rise cycloidal motion y = L sin Determine the following: The cam angular velocity. b. The cam rotation segment widths, B1 c. The lift (height) of the constant velocity segment. а. B4 , in degrees. Round off to nearest degree. d. The height at 0 = 180° е. The peak cam linear velocity V(t)peak with zero angular acceleration in segment 4.
Explore the profile of a cylindrical cam to give uniform velocity during outstroke of 25 mm to its follower during the first half of the revolution. The return of the follower also takes place with uniform velocity during the remaining half of the revolution. The cylinder diameter is 25 mm. The cam is rotating with constant rpm.

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