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Design a four-dwell cam to move a follower of mass == 1.25 bl from 0 to 2.5 inches in 40°, dwell for 100°, fall 1.5 inches in 90°, dwell for 20°, fall 0.5 inches in 30°, dwell for 40°, fall 0.5 inches in 30°, and dwell for the remainder. The total cycle must take 15 sec. Choose suitable programs for rise and fall to minimize dynamic forces and torques. Size a return spring and specify its preload to maintain contact between cam and follower. Calculate and plot the dynamic force and torque. Assume damping of 0.18 times critical. Repeat for a form-closed cam. Compare the dynamic force, torque, and natural frequency for the form-closed design and the force-closed design.
on the moon the gravitational acceleration is approximately one-sixth that on the surface of the earth. a 5-kg mass is
a gas turbine burns methane with 150 theoretical air. assume the air is 25 degrees celsius 100 kpa and has a relative
Need a critical review journal paper about the different types of trucks gap and skirts and boat tails
A gasoline engine is modeled as an Otto cycle. It has at temperature and pressure at the beginning of compression of 10°C and 90 kPa. The compression ratio is 7 and the specific energy added to the air during the heat addition process is 1432.46 ..
The figure shows a truss structure in which all bars have the length a. The structure has a fixed simple support at A and a simple support permitting horizontal motion at B. The truss is loaded by vertical forces of magnitude P and 2P.
Explain the operation of this arrangement. Extend this idea to a full impedance bridge for LVDT measurement
a particle is moving along a curved path that is defined by xy2 100 where x and y are positive and measured in inches.
What is the rotation rate (in radians per second) of 17.0 inch diameter wheels on a vehicle traveling at 211 inches per second?
A shell and tube heat exchanger with one shell pass and four tube passes is being analyzed to determine the heat transfer rate and the fluid outlet temperatures for prescribed flow rates and inlet temperatures. The cold fluid has a heat capacity rate..
A concrete pipe storm sewer is 4 ft in diameter, and drops 3 ft in elevation per mile length. What is the maximum capacity of the sewer in gpm when the pipe is full? Please show all work for points.
the condenser of a refrigeration cycle is basically a heat exchanger in which a refrigerant is condensed by rejecting
would a flagpole made of steel or aluminum freeze ones tongue to it faster? why? thermal conductivity 2. the outer
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