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1. Design a simple, spur gear train for a ratio of -9: 1 and diametral pitch of 8. Specify pitch diameters and numbers of teeth. Calculate the contact ratio.
2. Design a simple, spur gear train for a ratio of +8: 1 and diametral pitch of 6. Specify pitch diameters and numbers of teeth. Calculate the contact ratio.
The beauty of a bicycle wheel design is that the spokes (narrow cylindrical wires connecting the wheel center to the perimeter) are loaded in tension, despite the compressive force exerted via the bicyclist's weight. Consider a stainless steel spoke ..
The electric reheating oven is used to heat a continuous sheet of metal from 25-1000C The metal speed is such that the strip of metal spends 2 hours inside this oven, The sheet thickness is 1cm and the ambient temperature is 25C with the temperature ..
Construct a thermal circuit of the system. Derive an expression for the temperature Td of the heat-generating surface of the device in terms of the circuit thermal resistances, To and T8. Express the thermal resistances in terms of appropriate par..
If punching takes place in 1/10 of a second and rpm of the flywheel varies from 160 to 140, determine the weight of the flywheel having radius of gyration K = 1m
Propose an interesting Heat-Transfer project that includes a numerical analysis to determine temperatures and heat rate or heat flux. Object, device or system description and sketch.
oil enters a counter flow heat exchanger at 450 k with a mass flow rate of 10 kgs and exits at 350 k. a separate stream
at the beach atmospheric pressure is 1025 mbar. you dive 15 m down in the ocean and you later climb a hill up to 250 m
the populatoin p of a small community on the outskirts of a city grows rapidly over a 20-year periodt 0 5 10 15 20p 100
The entire line will not be available if any of the printing stations is turned off for upgrading. Xottawasaga Printing wants to know which line and which printing station to upgrade. Determine the feasible mutually exclusive combinations of lines..
Air is enclosed in a rigid cylinder containing a piston. A pressure gauge attached to the cylinder gives an initial reading of 20 psig. Determine the reading of the gauge after the piston has compressed the air to one third of its initial volume. Ass..
question 1 it is observed that snow lies stably on roofs with a slope of less than 24deg but that it slides off roofs
A 30-cm-long, 1-cm-diameter aluminium fin (k=237 W/m·K) is exposed to an environment at 22oC. The base temperature of the fin is maintained at 80 oC. The heat transfer coefficient between the rod and the surrounding air is 11 W/m2·K.
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