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Two aluminum plates, which are part of an aircraft structure, are held together by a grade 7½, UNF bolt. The effective area of the aluminum plates in compression is estimated to be 12 times the cross-sectional area of the steel bolt. The bolt is initially tightened to 90% of its proof strength. Gust loads, varying from zero to P, tend to pull the plates apart (this results in negligible bolt bending). With a safety factor of 1.3, what is the maximum value of P that will not cause eventual bolt fatigue failure? What clamping force will remain when this value of P acts?
Determme the dimensions, in both the FLT system an
Hydrogen expands isentropically from 15 bar absolute and 340 k to 3 bar absolute in a steady flow process without heat transfer. 1) compute the final velocity if the initial velocity is negligible B) compute the flow rate if the final duct size is 10..
a gas is contained in a vertical frictionless pixton-cylinder. the piston m 10 kg a- 7.5 x 10-3 m2 is attached to a
Our friend in the next room tells us both top sides are the same. Now what is the probability that our friend sees a circle on at least one top?
Consider a small simple Rankine Power cycle which produces 600kW power from an electric generator with an efficiency of 95%. The steam leaves the boiler at 1250psia as superheated steam and leaves the turbine at 2 psia with a quality of 90%.
Determine the specific volume of superheated water vapor at 15 MPa and 407°C, using the generalized compressibility chart. In m3/kg with four significant figures.
Design intermediate web stiffeners if required Check whether load-bearing stiffeners are necessary at the supports - Calculate the design load w* that be safely carried by this beam.
Explore the effect of variations in Dd and h on q', as well as on relative contributions of convection and radiation to the net heat transfer rate. Represent your results graphically.
if a recipe calls for mixing 2 kg of flour with 1kg of water, and the temperature of the city water is 15°c,determine the temperature to which the city water must be cooled before mixing in order for the water to absorb the entire heat of hydratio..
a simple steam power system has a turbine inlet state of 6.0 mpa and 540 0c and an exhaust pressure 0.008 mpa. the
What steps could you have taken when originally designing your system to best prepare for an eventual transition to a new certificate format?
reheat where high pressure and low pressure turbines are used is added to a simple steam cycle to increase the steam
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