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Design the system show above (shaft, bearings, gears, key at gear) for a FoS of no less than 2. You may assume that the shaft has a single diameter of d1 (constant cross section of diameter d1 shown above). The power transmitted is 2.25 HP and comes from an electric motor. The power is transmitted into the system from gear 2 at 1725 rpm and does not vary with time. The tangential velocity of the belt must be 1626 inches per second. A V-belt has tension on both sides, and the ratio between the force F1 on the tight side and F2 on the "slack" side is usually assumed to be about 5. You must use helical cut gears. Do not assume that the pressure angle must be 20 degrees just because it is in the drawing. Given that the output is a belt we can use a course gear mesh. Assume solid gears. The center-center distance between the shafts holding Gear 1 and Gear 2 must be less than 18".
Specifically, you will need to provide a
Consider an ideal Rankine cycle with a single open feed water heater. The boiler pressure is 800 psia, and the condenser pressure is 2 psia. Steam is extracted from the turbine to heat the feed water at 90 psia. Steam enters the turbine at 1000F.
a piston cylinder device contains 2.5 kg of carbon dioxide co2 initially at 100 kpa and 300 degrees celsius.the co2 is
Determine the tension developed in AB cable for equilibrium of the 350-lb crate. Determine the tension developed in AC cable for equilibrium of the 350-lb crate. Determine the tension developed in AD cable for equilibrium of the 350-lb crate.
a piece of electronic equipment that is surrounded by packing material is dropped so that it hits the ground with a
A “friend” asks you to construct the phase diagram for a new binary alloy of A and B. The clues are: (i) A and B are completely immiscible in each other and no solid solutions exist in the diagram, (ii) no stoichiometric compounds exist in the diagra..
a 16 kg mass of copper is dropped into an insulated tank which contains water at 20oc and 1 bar. the initial
And open center spool valve
the city of houston has a water filtration system that consists of a large rigid tank with a single 1.5m diameter inlet
a steady flow compressor is used to compress helium from 100 kpa and 20 degrees celcius at the inlet to 1400 kpa and
two particles a and b are travelling around a circle of redius 2m in opposite directions. the velocity of particle a
Water is siphoned from a large tank and discharges into the atmosphere through a 5 cm diameter tube as shown in below figure. The end of the tube is 1 m below the tank bottom, and viscous effects are negligible.
Class 20 and class 60 gray cast irons have tensile strengths of about 20 and 60 ksi respectively. Assuming that the fractures start from graphite ?akes and that the ?akes act as preexisting cracks, use the concepts of Grif?th analysis to predict t..
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