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A cam in a large machine can be modeled as applying a 10,000 N-force over an interval of 0.005 s. This can strike a valve that is modeled as having the physical parameters m = 10 kg, c = 18 N s/m, and stiffness k = 9000 N/m.
The cam strikes the valve once every 1 s. Calculate the vibration response, x(t), of the valve once it has been impacted by the cam.
The valve is considered to be closed if the distance between its rest position and its actual position is less than 0.0001 m. Is the valve closed the very next time it is hit by the cam?
the lowest temperature that has been achieved is about 1 times 10-6 k. to achieve this an additional stage of cooling
a simple slide valve with outside admission provides a lead of 3 mm a maximum port opening of 18 mm and a cut-off at 62
Determine the natural frequencies of the system. For the baseline system I get natural frequencies at the following engine speeds: 435, 2026, 2818, 5225, 7093, 10245, and 12153 rpm.
a heat-engine of 32 thermal efficiency is used to drive a refrigerator having coefficient of performance of 5.
For studying the effects of mechanical loading on the bone, a diaphysis is isolated as shown in the Figure. Pins extended from the metal caps over the bone ends. Assume a load is applied between the ends of the pins as shown.
A cylinder is internally pressurized to a pressure of 100 MPa. This cause tangential and axial stress in the outer surface of 400 and 200 MPa respectively. Make a mohr circle representing of the stress in the outer surface. What maximum shear stress ..
a four cylinder four stroke gasoline internal combustion engine has a bore of 9.4 cm and a stroke of 8.6 cm. the
The data below were taken on a test material to determine its fracture toughness. The specimens were 25 mm thick.
Two aqueous sulfuric acid solutions containing 20.0 wt% H2SO4 (SG = 1.139) and 60.0 wt% H2SO4 (SG = 1.498) are mixed to form a 4.00 molar solution (SG = 1.213). Calculate the mass fraction of sulfuric acid in the product solution.
Water as a saturated vapor at a temperature of 300 °C undergoes the path of a linear change in of pressure with respect to volume until the final pressure is 6500 kPa and the final temperature is 600 °C. Show the process on a P-v diagram. Find the ..
If the metal sheet is moving at a steady velocity of 10 m/min, determine the required rate of heat removal from the oil to keep its temperature constant at 45°C.
The eye of a centrifugal compressor has a hub - tip radius ratio of 0.4, a maximum relative flow Mach number of 0.9, and an absolute flow that is uniform and completely axial.
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