Reference no: EM131392658
Repeat Problem 13-7 for these data: l = 15, mass m3 = 0.025, mass moment of inertia is 1.020. Its CG is located at 0.25 l from the crankpin, point A.
Problem 13-7
A connecting rod of length l = 12 has a mass m3 = 0.020. Its mass moment of inertia is 0.620. Its CG is located at 0.4 I from the crankpin, point A.
a. Calculate an exact dynamic model using two lumped masses, one at the wrist pin, point B, and one at whatever other point is required. Define the lumped masses and their locations.
b. Calculate an approximate dynamic model using two lumped masses, one at the wrist pin, point E, and one at the crankpin, point A. Define the lumped masses and their locations.
c. Calculate the error in the mass moment of inertia of the approximate model as a percentage of the original mass moment of inertia.
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