A translating cam-follower is to be designed for a Rise-Dwell-Fall-Dwell (RDFD) application in which vibrations must be considered
A translating cam-follower is to be designed for a Rise-Dwell-Fall-Dwell (RDFD) application in which vibrations must be considered. The cam is to move the follower from 0 to 35 mm in 70°, dwell for 100, fall back to 0 mm in 80°, and dwell for the remainder of the cycle. In addition, the cam must rotate at an angular velocity of 60 RPM. The position (s), velocity (v), and acceleration (a) curves during the rise period are defined by the following polynomial equations:
(a) Determine the maximum follower velocity during the rise period (in m/s)
(b) Determine the maximum follower acceleration during the rise period (in m/s2).
(c) Provide a rough sketch of the cam surface profile required to ensure the follower's motion meets the design position specifications.
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A translating cam-follower is to be designed for a Rise-Dwell-Fall-Dwell (RDFD) application in which vibrations must be considered
1. (40 points) A double-dwell cam is to move a follower from 0 to 2" in 120°, dwell for 80°, fall in 90 and dwell for the remainder. The total cycle is 5 seconds. Using cycloidal motion for t...
1. (40 points) A double-dwell cam is to move a follower from 0 to 2" in 120°, dwell for 80°, fall in 90 and dwell for the remainder. The total cycle is 5 seconds. Using cycloidal motion for the rise and 3-4-5 polynomial motion for the fall, find the follower displacement corresponding to the cam angle 0 at 90°, 180°, 230° and 320 respectively. Also find the maximum actual acceleration (in inch/sec2) during the entire motion cycle.
1. (40 points)...
cam design use polynomail 8-46 Design a double-dwell cam to move a follower from 0 to 50 mm in 75, dwell for 75° 4fall 50 mm in 75°, and dwell for the remainder. The total cycle must take 5 s. Use...
cam design
use polynomail
8-46 Design a double-dwell cam to move a follower from 0 to 50 mm in 75, dwell for 75° 4fall 50 mm in 75°, and dwell for the remainder. The total cycle must take 5 s. Use a 4-5-6-7 polynomial function for rise and fall and plot the s v a j diagrams.
8-46 Design a double-dwell cam to move a follower from 0 to 50 mm in 75, dwell for 75° 4fall 50 mm in...
A disc cam is to be designed for a knife edge follower with the following...
A disc cam is to be designed for a knife edge follower with the following data :Cam lift = 60 mm during 120° of cam rotation with simple harmonic motion. Dwell for the next 30°.During the next 90° of cam rotation, the follower returns to its original position with simple harmonic motion.Dwell during the remaining 120°.Draw the profile of the cam when the line of stroke of the follower passes through the axis of the cam shaft. The radius of...
Design a rise-fall-dwell cam-follower motion profile that will rise from 0 to 7 mm in 0.5...
Design a rise-fall-dwell cam-follower motion profile that will rise from 0 to 7 mm in 0.5 seconds, then fall for 0.5 seconds back to 0 mm, and then dwell for 1 second. Note that this produces a symmetric rise-fall curve. There should be no overshoot, and the motion should be relatively smooth. Your final follower motion profile s(θ) should be in terms of cam angle θ.
Cam data: 0 to 900 bottom dwell, 900 to 1800 rise for 60 mm with uniform...
Cam data: 0 to 900 bottom dwell, 900 to 1800 rise for 60 mm with uniform velocity 1800 to 2700 top dwell 2700 to 3600 fall for 60 mm with SHM Minimum cam diameter 50 mm In-line roller follower, diameter 10 mm Draw the cam profile.
Consider a cam with a roller follower. The cam displacement curve is in the given order:...
Consider a cam with a roller follower. The cam displacement curve is in the given order: i. for 45 degrees, a sinusoidal rise of 1 in ii. for 75 degrees, a dwell iii. for 60 degrees, a cycloidal return of 1 in iv. for 180 degrees, a dwell During the motion, the velocity is continuous but not necessarily the acceleration. a) Assume a constant cam speed of 1200 rpm. Find the maximum magnitude of the velocity (in inch/s) and acceleration...
CAM PROFILE WITH KNIFE EDGE FOLLOWER
A disc cam is to give SHM (Simple Harmonic Motion) to a knife-edge
follower during outstroke of 50mm. The angle ascent is 120, dwell 60, and
angle of descent 90°. The minimum radius of the cam is 50mm. Draw the profile
of the cam when the axis of the follower passes through the axis of the
camshaft.
Calculate the maximum velocity and acceleration during ascent and descent
when the camshaft revolves at 240 rpm.
A cam with a knife-edge follower has a motion with the following characteristics:
A cam with a knife-edge follower has a motion with the following characteristics: lift = 50 mm base circle radius = 25 mm outstroke = 110 degrees cam rotation with cycloidal motion first dwell = 80 degrees return stroke = 90 degrees with simple harmonic motion Cam rotates at 550 rpm in CCW direction Determine the maximum velocity and acceleration of the follower during outstroke and return stroke.
A cam rotating clockwise at a uniform speed of 120 rpm
A cam rotating clockwise at a uniform speed of 120 rpm. is required to give motion to knife follower as below:(a) Follower to move outwards through 40 mm during 120° of cam rotation with simple harmonic motion,(b) Follower to dwell for the next 60° of cam rotation,(c) Follower to return to its starting position during next 90° of cam rotation withuniformly accelerated motion, and(d) Follower to dwell for the rest of the cam rotation.The minimum diameter of the cam is...
2. (8 points) A cam with a knife-edge follower has a motion with the following characteristics:...
2. (8 points) A cam with a knife-edge follower has a motion with the following characteristics: lift = 50 mm base circle radius = 25 mm outstroke = 110 degrees cam rotation with cycloidal motion first dwell = 80 degrees return stroke = 90 degrees with simple harmonic motion Cam rotates at 550 rpm in CCW direction Determine the maximum velocity and acceleration of the follower during outstroke and return stroke.
1. (40 points) A double-dwell cam is to move a follower from 0 to 2" in 120°, dwell for 80°, fall in 90 and dwell for the remainder. The total cycle is 5 seconds. Using cycloidal motion for the rise and 3-4-5 polynomial motion for the fall, find the follower displacement corresponding to the cam angle 0 at 90°, 180°, 230° and 320 respectively. Also find the maximum actual acceleration (in inch/sec2) during the entire motion cycle.
1. (40 points)...
cam design
use polynomail
8-46 Design a double-dwell cam to move a follower from 0 to 50 mm in 75, dwell for 75° 4fall 50 mm in 75°, and dwell for the remainder. The total cycle must take 5 s. Use a 4-5-6-7 polynomial function for rise and fall and plot the s v a j diagrams.
8-46 Design a double-dwell cam to move a follower from 0 to 50 mm in 75, dwell for 75° 4fall 50 mm in...
Consider a cam with a roller follower. The cam displacement curve is in the given order: i. for 45 degrees, a sinusoidal rise of 1 in ii. for 75 degrees, a dwell iii. for 60 degrees, a cycloidal return of 1 in iv. for 180 degrees, a dwell During the motion, the velocity is continuous but not necessarily the acceleration. a) Assume a constant cam speed of 1200 rpm. Find the maximum magnitude of the velocity (in inch/s) and acceleration...
2. (8 points) A cam with a knife-edge follower has a motion with the following characteristics: lift = 50 mm base circle radius = 25 mm outstroke = 110 degrees cam rotation with cycloidal motion first dwell = 80 degrees return stroke = 90 degrees with simple harmonic motion Cam rotates at 550 rpm in CCW direction Determine the maximum velocity and acceleration of the follower during outstroke and return stroke.
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