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A CPVA is attached to the crankshaft driven by a three-cylinder four-stroke engine which produces a maximum primary torque oscillation of magnitude T0 = 30 Nm. The circular path of the absorber is centered at a point R = 5 cm from the center of crankshaft rotation. Find the desired radius and mass of the absorber if the absorber is to not exceed an angular deflection amplitude of 30 degrees when the engine is running at 750 rpm.
a force of 67000 n is applied to a steel wire 7.5 m in length. the tensile stress in the wire must not exceed 138 mpa
a hydraulic press is powered by a remote high-pressure pump. the gage pressure at the pump outlet is 22 mpa whereas the
A huge reservoir of air supplies a converging-diverging nozzle with throat and exit areas of 10 cm^2 and 25 cm^2 respectively. The reservoir pressure and temperature are 150 kPa and 20C. Determine the range of back pressure over which
consider a cold canned drink left on a dinner table. would you model the heat transfer to the drink as one two or three
hot water from a thermal spring is proposed as the heat source for a power cycle. if water is available at 95 c and a
Air at 250 kPA and 15C is being forced into a tire, which has a volume of 0.5m^3, at a velocity of 60 m/s through a 6 mm opening. Find the rate of change of the density in the tire.
a 2.5 lbf block b is moving with a velocity vo of magnitude vo 6fts as it hits the 1.5 lbf sphere a which is at rest
air flows in a channel whose velocity at 3 neighbouring points ab and c which are 10 cm apart are shown in the
an insulated rigid tank initially contains 1.8 ibm of helium at 82 f and 45 psia. a paddle wheel with a power rating of
what is the change in enthalpy in kjkg of oxygen as its temperature changes from 150 to 200oc? is there any difference
we find that 10h are required to successfully carburize a batch of 500 steel gears at 900cwhere the iron has the fcc
Carbon dioxide enters an adiabatic compressor at 100kPa and 300K at a rate of 0.5kg/s and exits at 600kPa and 450K. Considering constant specific heat, determine (a) isentropic efficiency of the compressor (b) the rate of entropy change in (kW/K) ..
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