Engineering, 24.04.2020 18:40 lcy1086526Lisa1026
Determine a first-order ordinary differential equation to describe the rotating machine (consider viscous friction) as a dynamic system where the output is the angular velocity of the inertia J , , 2 w2 and the input is the motor torque, τ . Calculate the solution to this equation. Consider: τ = 1 N m, mm, mm, kg-m 2 /s, kg-m 2 /s, kg-m 2 r 5 , 1 = 2 r 00 2 = 5 b .01 1 = 0 b .1 2 = 0 J .0031 1 = 0 J 5 2 = 2 kg-m 2 . Plot the response of w (t) with three different initial conditions 2 w (0) 0, 3, 6 rad s
Answers: 1
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
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Engineering, 04.07.2019 18:10
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
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Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
Determine a first-order ordinary differential equation to describe the rotating machine (consider vi...
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