Engineering, 22.03.2021 22:10, T0othless3clipes
A steel shaft is subjected to a twisting moment (Torque) of 10677 N. m and maximum bending moment of 5423 N. m. - Find the required diameter of the shaft to prevent yielding in Tresca criteria. Yield strength σY = 413 MPa Another steel shaft is now subjected to a fluctuating axial load that varies from a minimum of 10000 N in compression to a maximum of 40000 N in tension, and a completely reversed bending moment of 2000 N. m - Find the required diameter of the shaft to prevent failure by fatigue σu = 690 pa (Tensile strength) and σe = 345 pa (endurance imit) and S. F.=1
Answers: 2
Engineering, 06.07.2019 02:30, khalilh1206
1in2 processor chip can be modelled as an isothermal plane wall of silicon, isothermal on both sides. the power input to the bottom of the plane wall, or the processing power of the chip, often called the thermal design power (tdp), is 100w. assume the periphery is adiabatic. the silicon is 400 microns thick. the temperature at the junction, or in this case on the bottom of the isothermal plane wall, is 85°c. what is the top surface temperature, assuming that the only mode of heat transfer is conduction
Answers: 1
Engineering, 06.07.2019 04:10, makenziemartinez
Aheat pump using refrigerant-134a heats a house by using underground water at 8°c as the heat source. the house is losing heat at a rate of 60,000 kj/h. the refrigerant enters the compressor at 280 kpa and 0°c, and it leaves at 1 mpa and 60°c. the refrigerant exits the condenser at 30°c. determine: (a) the power input to the heat pump, (b) the rate of heat absorption from the water, and (c) the increase in electric power input if an electric resistance heater is used instead of a heat pump
Answers: 2
A steel shaft is subjected to a twisting moment (Torque) of 10677 N. m and maximum bending moment of...
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