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Question: A piece of machinery can be regarded as a rigid mass with two reciprocating rotating unbalanced masses such as that in Fig. The total mass of the system is 12 kg and each of the unbalanced masses is equal to 0.5 kg. During normal operation, the rotation of the masses varies from 0 to 600 rpm. Design a support system so that the maximum vibration amplitude will not exceed 10 percent of the rotating masses; eccentricity.
A 50-mm-diameter solid steel shaft is subjected to an axial compressive load of 225 kN and a torque (twisting moment) of 3400 N⋅m.- Calculate the principal stresses and the maximum shear stress on an element on the surface of the shaft.
a motor delivers 275 hp at 1000 rpm to the end of a shaft. the gears at b and c take out 125 and 150 hp
A uniform bar of mass m and length v2R slides inside a smooth circular surface of radius R (Fig.).
An airplane with a plan form area of 15m^2 is moving through the air at True Airspeed(TAS) 150 km/.h at 3000 m altitude on a no wind standard day. Use Appendices for atmosphere data. What is the equivalent airspeed (EAS)?
water is used in a regenerative power cycle where the standard rankine cycle is augmented with one closed feed water
what is the maximum speed of the star S2
List three different factors responsible for the increase in pressure resulting from the transfer of heat to the tank. List ways in which this accident could have been avoided.
Plot a curve showing the relationship of f versus L/r for steel columns. Draw the curve for slenderness ratios that vary from 0 to 200. Assume the proportional limit =235 MPa.
A 2.64 kg copper part, initially at 400 K, is plunged into a tank containing 4 kg of liquid water, initially at 300 K. The copper part and water can be modeled as incompressible with specific heats of 0.385 kJ/kg. K and 4.2 kJ/kg. K, respectively.
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
The requirements needs to be followed and all calculations shown - need stress analysis? angular velocity - low, middle, and high end? circumference of rotation? RPM of rotation - low, middle, and high end? Maximum force required to move the parts fo..
analysis using ansys fea is required. linear structural vibrationmodal and steady state thermal analysis can be use to
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