HW4 EX1: An automobile moving over a rough road (Fig. 1.64) can be modeled considering (a) weight of the car body, passengens, seats, front wheels, and rear wheels; (b) elasticity of tires (suspension), main springs, and seats; and (c) damping of the seats, shock absorbers, and tires. Develop three mathematical models of the system using a gradual refinement in the modeling process.

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Chapter6: Forced Convection Over Exterior Surfaces
Section: Chapter Questions
Problem 6.32P
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HW4
EX1:
An automobile moving over a rough road (Fig. 1.64) can be modeled considering
(a) weight of the car body, passengers, seats, front wheels, and rear wheels; (b) elasticity of
tires (suspension), main springs, and seats; and (c) damping of the seats, shock absorbers,
and tires. Develop three mathematical models of the system using a gradual refinement in the
modeling process.
FIGURE 1.64 An automobile moving on a
rough road.
EX2
1.5* The consequences of a head-on collision of two automobiles can be studied by considering
the impact of the automobile on a barrier, as shown in Fig. 1.65. Construct a mathematical
model by considering the masses of the automobile body, engine, transmission, and suspen-
sion and the elasticity of the bumpers, radiator, sheet metal body, driveline, and engine
mounts.
FIGURE 1.65 An automobile colliding with a barrier.
Transcribed Image Text:HW4 EX1: An automobile moving over a rough road (Fig. 1.64) can be modeled considering (a) weight of the car body, passengers, seats, front wheels, and rear wheels; (b) elasticity of tires (suspension), main springs, and seats; and (c) damping of the seats, shock absorbers, and tires. Develop three mathematical models of the system using a gradual refinement in the modeling process. FIGURE 1.64 An automobile moving on a rough road. EX2 1.5* The consequences of a head-on collision of two automobiles can be studied by considering the impact of the automobile on a barrier, as shown in Fig. 1.65. Construct a mathematical model by considering the masses of the automobile body, engine, transmission, and suspen- sion and the elasticity of the bumpers, radiator, sheet metal body, driveline, and engine mounts. FIGURE 1.65 An automobile colliding with a barrier.
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