Eng6933 - Lab 4
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1. Let see if you should put 225/35x20 tires and rims on your Honda Civic.
s
(a) Derive the governing equations for a 2 DOF model of one quarter of a car. Mass
m1 is the unsprung mass (including the wheel, tire, wheel hub, brake and movi
Eng6933 - Problem Sets
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Problem Set 1
1. Write a MatLab program to plot Eqs. (17), (20)
and (21) in the notes versus time. The inputs
should be system mass, m, linear spring constant, k , and the initial system displacement,
xo , and velocity, xo . Play
Eng6933 - Lab 1
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1. A vertical take-o and landing craft has a mass of m = 20000 kg. As it lands it is
supported by three struts, each of which consists of a linear spring and viscous damper.
The spring constant for each spring is k = 130:8 kN= m and the
Eng6933 - Lab 2
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1. Consider a machine of mass 1000 kg supported by an undamped elastic base. The
eective spring constant of the base is 500 kN= m. Other machines in the room cause
the to vibrate with amplitude 5 mm and period 0:25 s. Using a modied vers
5.1 Find the natural frequencies of the system shown in Fig. 5.16, with m1 = m, m2 = 2mg;
k, = k. and k2 : 2k. Determine the response of the system when k = 1000 N/m,“
m = 20 kg, and the initial values of the displacements of the masses m1 and m2 are 1 an