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Design a four-dwell cam to move a follower of mass= 3 kg from 0 to 40 mm in 40°, dwell for 100°, fall20 mm in 90°, dwell for 20°, fall 10 mm in 30°, dwell for 40°, fall 10 mm in 30°, and dwell for the remainder. The total cycle must take 10 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 0.25 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.
Consider a piston-cylinder system with an initial volume of 0.04 m3 at 200 kPa. Calculate the work being carried out to increase the volume to 0.1 m3 for each of the following processes
in a dual cycle the heat added at constant volume is equal to the heat added at constant pressure. the compression
steam enters the turbine in a vapor power plant at 1600 psia and 1000 degrees f state 1 and expands to a pressure of 1
Determine the number of revolutions that the motor executes in a) reaching its rated speed, b) coasting to rest.
Nitrogen enters a nozzle steadily at 1.2mpa and 600k with a velocity of 30m/s the inlet area of the nozzle is 0.005m^2 the nitrogen leaves the nozzle at 298k with a velocity if 400m/s. find the heat transfer rate during the process?
an alcohol solution contains 6 by mass ethanol. this solution is fed to a distillation column at a rate of 1000 kgh.
a cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.a find
consider the ideal vapor compression refrigeration cycle where the refrigerant is r134a. saturated vapor enters the
a construction crew lifts approximantely 560lb of material serveral times during the day from a flatbed truck to a 32
a power plant produces a flue gas with a mass flow rate of 2 million pounds per hour. of that 150000 lbhr is water
what is the maximum allowable electric current I? If the maximum available voltage if 110 V, what is the corresponding length of the wire that may be used in the heater and the power rating of the heater? Assume negligible temperature variations w..
A high-performance automotive driveshaft is to be made of a 4-inch outer diameter 6061-T6 Aluminium tube. The shaft is to transmit 500 hp at 3000 rpm and requires a minimum factor of Safety against a shear yield failure of 3.0. Objective:
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