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A 17-tooth 20 normal pressure-angle helical pinion with a right-hand helix angle of 30 rotates at 1800 rev/min when transmitting 4 hp to a 52-tooth helical gear. The normal diametrical pitch is 10 teeth/in, the face width is 1.5 in, and the set has a quality number of 6. The gears are straddle-mounted with bearings immediately adjacent. The pinion and gear are made from through-hardened steel with surface and core hardness of 240 Brinell on the pinion and surface and core hardness of 200 Brinell on the gear. The transmission is smooth, connecting an electric motor and a centrifugal pump. Assume a pinion life of 10^8 cycles and rim thickness factor (KB) is equal to 1.00 and a reliability factor (KR) is equal to 0.85 for both pinion and gear. Perform stress analysis (bending and contact) for both pinion and gear and determine factor of safety of gears in bending.
a particle moves along a stright line with an acclereation a 2 v 12 where v is in ms.if s0 v4 ms.when t0 determine the
an axial flow compressor stage has blade rootmean and tip velocities of 150200 and 250 ms. the stage is to be designed
air discharges downward in a pipe and then outward between the parallel disks. assuming negligible density change in
a cylindrical container has a 4.5 inch diameter and weighs 0.4 lbf when empty. when the cylinder is filled to a depth
A reversible heat engine operates between 875 K and 310 K and drives a reversible refrigerator operating between 310 K and 225 K. the engine receives 2000 kJ of heat and the net work output from the arrangement equals 350 kJ. make calculations for..
the critical heat flux of water at 1 atm is qmax 1258.7 kwm which occurs at ?t 30c. boiling enters the transition
In a polytropic process, a fluid is compressed to 2.75 times its initial pressure, whereas its temperature becomes1.65 times. What is the fluids index of expansion, n? 1.2kg of Air at a pressure of 2.15MPa and a temperature of 585K, undergoes a rever..
a particle moves along a hyperbolic path defined by the equation x216 - y2 28. if the x component of velocity is vx 4
As shown in the picture, air flows through a pipe. Heat is supplied to the airflow. The air at the inlet is 200kPa and 20 C with flow velocity of 5m/s. The exiting air is 180 kPa and 40 °C. The diameter of the pipe is 0.28 m. Determine (a) the volume..
superheated water vapor enters and insulated turbine operating at steady state at 20 bar and 400 degc and exits at 1.5
an electric motor of total weight 3330 pounds is mounted on a simply supported beam with an overhang as shown
What would have been the advantages or disadvantages of Tata collaborating with another automaker on the Tata? Who might it have collaborated with?
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