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Repeat Problem 15-12 using a cam with a 20-mm symmetric double harmonic rise and fall (180° rise -180° fall). See Chapter 8 for cam formulas.
Problem 15-12
The cam in Figure P15-2 is a pure eccentric with eccentricity= 20 mm and turns at 200 rpm. The mass of the follower is 1 kg. The spring has a rate of 10 Nlm and a preload of 0.2 N. Find the follower force over one revolution. Assume a damping a ratio of 0.1 0. If there is follower jump, respecify the spring rate and preload to eliminate it.
A 3 liter vessel contains 2kg of water, 0.05kmol of steam, and 15cm^3 of ice (of density 990 kg/m^3). If the vessel is heated until its entire contents have vaporied, what is the density of the vapor?
the lowest temperature that has been achieved is about 1 times 10-6 k. to achieve this an additional stage of cooling
a crane is lifting concrete to a construction project where the acceleration of gravity is 31 fts2. if a 400 lbm
the brakes of a 1350 kg car are released and the car is held in place on the plane surface by the cable ab. the cars
When emergency changes have to be made to systems, the system software may have to be modified before changes to the requirements have been approved. Suggest a model of a process for making these modifications that will ensure that the requirement..
water is the working fluid in an ideal rankine cycle. steam enters the turbine at 1400 lbfin2. the net power output of
To set up and solve the equations of motion using rectangular coordinates. The 3-kg collar shown has a coefficient of kinetic friction μk=0.205 with the shaft. The spring is unscratched when s=0 and the collar is given an initial velocity of v0=15.1..
If the initial conditions are 27 °C and 1.0 bar, and the energy added is 2000 kJ/kg, calculate the thermal efficiency of the cycle. What is the specific work output of the cycle?
A pump is employed to deliver liquid water from a pond to a higher elevation. The pump steadily draws water from the pond at a volumetric flow rate of 192 gal/min through a pipe having a 7 in diameter inlet. The exit diameter of the pipe is 2 in. and..
Find the distance, h, from the 1.0 mark to the surface when the hydrometer is placed in a nitric acid solution of specific gravity 1.5.
The oscillating drive-arm in Figure P2.9 has the maximum operating angle p/6. For a relatively short guide way, the reciprocating output stroke is large and it follows a straight line.
water flows in a 5-m-wide channel with a speed of 2 ms and a depth of 1m. the channel bottom slopes at a rate of 1 m
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