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 the base circle of the cam is 60 mm. Determine the maximum velocity and acceleration of the follower during its ascent and descent, if the cam rotates at 300 r.p.m.
Draw a clear and well-proportioned Cam profile diagram, Displacement diagram
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A disc cam is to be designed for a knife edge follower with the following...
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.
Please be sure that the SCALE is 1:1 . CAM DESIGN lower type. Knife-edged follower •...
Please be sure that the SCALE is 1:1
. CAM DESIGN lower type. Knife-edged follower • Lift = 26 mm • Base circle radius = 28 mm Outstroke: Cycloidal motion for 120° cam rotation Dwell for 750 • Return stroke: Simple harmonic motion for 100° cam rotation • Dwell for the remaining 650 Cam rotates at 600 rpm in CW direction Cam shaft diameter: 18 mm • Cam thickness: 4+1 mm Draw the Displacement-Time (O) diagram. Use 1:1 scale. Draw...
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.
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...
Design a cycloidal cam-follower displacement table for a cam that provides a dwell at zero lift...
Design a cycloidal cam-follower displacement table for a cam that provides a dwell at zero lift for the first 120 of the motion cycle and then dwells at 0.8 in lift for cam angles from 180 to 210. The follower will again dwell at zero lift at 270 for the remainder of the cycle. The cam follower displacement table will be laid out using 10 intervals. Assume the cam rotates at constant angular velocity. 4.
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...
Calculate angle and lift for each segment. A plate cam with a reciprocating follower is to...
Calculate angle and lift for each segment.
A plate cam with a reciprocating follower is to rotate clockwise at 400 rev/min. The follower is to dwell for 60° of cam rotation, after which it is to rise to a lift of 2.5 in. During 1 in of the return motion, it must have a constant velocity of -40 in/s. Recommend standard cam motions from Sec. 6.7 to be used for high-speed operation, and determine the corresponding lifts and cam rotation...
For the cam-follower mechanism in the figure, the cycloidal movement program is shown below: LOW DWELL...
For the cam-follower mechanism in the figure, the cycloidal movement program is shown below:
LOW DWELL (Rest or Stop) for 45 °
3 mm rise at 135 °
HIGH DWELL (Rest or stop) for 45 °
Drop or drop 3mm at 135 °
If the base radius is 21 mm, what is the coordinate RX1 in mm of the cam profile if θ1 = 153 degrees? Use as many decimal places as you can. The follower is of the wedge...
A flat-faced radial follower is driven through a total displacement of 38 mm. The follower moves...
A flat-faced radial follower is driven through a total displacement of 38 mm. The follower moves upward 25 mm with constant acceleration for 120° and the remaining 13 mm with constant deceleration for 60° of cam rotation. The follower returns with simple harmonic motion in 90° and dwells for the remainder of the revolution of the cam. (a) For each type of motion, write an equation expressing S V AJ as a function cam angle 0 and draw S V...
Please be sure that the SCALE is 1:1
. CAM DESIGN lower type. Knife-edged follower • Lift = 26 mm • Base circle radius = 28 mm Outstroke: Cycloidal motion for 120° cam rotation Dwell for 750 • Return stroke: Simple harmonic motion for 100° cam rotation • Dwell for the remaining 650 Cam rotates at 600 rpm in CW direction Cam shaft diameter: 18 mm • Cam thickness: 4+1 mm Draw the Displacement-Time (O) diagram. Use 1:1 scale. Draw...
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.
Design a cycloidal cam-follower displacement table for a cam that provides a dwell at zero lift for the first 120 of the motion cycle and then dwells at 0.8 in lift for cam angles from 180 to 210. The follower will again dwell at zero lift at 270 for the remainder of the cycle. The cam follower displacement table will be laid out using 10 intervals. Assume the cam rotates at constant angular velocity. 4.
Calculate angle and lift for each segment.
A plate cam with a reciprocating follower is to rotate clockwise at 400 rev/min. The follower is to dwell for 60° of cam rotation, after which it is to rise to a lift of 2.5 in. During 1 in of the return motion, it must have a constant velocity of -40 in/s. Recommend standard cam motions from Sec. 6.7 to be used for high-speed operation, and determine the corresponding lifts and cam rotation...
For the cam-follower mechanism in the figure, the cycloidal movement program is shown below:
LOW DWELL (Rest or Stop) for 45 °
3 mm rise at 135 °
HIGH DWELL (Rest or stop) for 45 °
Drop or drop 3mm at 135 °
If the base radius is 21 mm, what is the coordinate RX1 in mm of the cam profile if θ1 = 153 degrees? Use as many decimal places as you can. The follower is of the wedge...
A flat-faced radial follower is driven through a total displacement of 38 mm. The follower moves upward 25 mm with constant acceleration for 120° and the remaining 13 mm with constant deceleration for 60° of cam rotation. The follower returns with simple harmonic motion in 90° and dwells for the remainder of the revolution of the cam. (a) For each type of motion, write an equation expressing S V AJ as a function cam angle 0 and draw S V...
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