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.I'Ifld‘ F31;- . . Some enterprising SYS 336 students decide to hold a car wash to raise money for tuition andlor
reﬁ'sshments. Working as a team, the produce a translational input with linear force F and linear velocity v
as shown on the Ieﬁ side of the drawing. The input goes through a compliant shaft, modeled by the linear
spring k. The team captain sits on the input to the M—E translational tansducer, modeled with mass m and
linear friction coefﬁcient b. The output of this transducer drives on electrical cumin-Which in turn drives a
rotational motorwithdamping Em and inertia Jm,whichdrives apump,whichpumps waterfromLake
LaSalle andthroughaﬂuidsyswmtothecarwash. Theoutputofthesystem isthe output ﬂowrate at the
car wash. An enterprising SYS 336 student decides to hold a car wash to raise money for tuition andfor refreshments.
The student engages in some wild dancing on shag carpeting as shown on the left side of the drawing. The
friction produces a voltage source input es, which drives an electrical circuit, which in turn drives a
rotational motor with damping Bm and inertia 1m, which drives a pump, which pumps water from Lake
LaSalle and through a ﬂuid system to the car wash. The output ofthe system is the output ﬂow rate at the
car wash. ...
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- Spring '09