Automotive Technology (Custom)
6th Edition
ISBN: 9781337495356
Author: ERJAVEC
Publisher: Cengage
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Chapter 46, Problem 3RQ
What are two reasons for using an air spring?
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I tried solving this one but have no idea where I went wrong can you please help me out with this?
Question 1.
A tube rotates in the horizontal xy plane with a constant angular velocity w about the z-axis. A
particle of mass m is released from a radial distance R when the tube is in the position shown.
This problem is based on problem 3.2 in the text.
y
ω
R
m
2R
Figure 1
X
a) Draw a free body diagram of the particle if the tube is frictionless.
b) Draw a free body diagram of the particle if the coefficient of friction between the sides of the
tube and the particle is μs = flk = fl.
c) For the case where the tube is frictionless, what is the radial speed at which the particle
leaves the tube?
d) For the case where there is friction, derive a differential equation that would allow you to
solve for the radius of the particle as a function of time. I'm only looking for the differential
equation. DO NOT solve it.
e) If there is no friction, what is the angle of the tube when the particle exits?
• Hint: You may need to solve a differential equation for the last part. The "potentially…
I tried this problem but I can't seem to figure out what I am missing here can you please help me?
Chapter 46 Solutions
Automotive Technology (Custom)
Ch. 46 - Prob. 1RQCh. 46 - Explain the difference between sprung and unsprung...Ch. 46 - What are two reasons for using an air spring?Ch. 46 - Explain the action of the conventional shock...Ch. 46 - Prob. 5RQCh. 46 - Prob. 6RQCh. 46 - What occurs when a wheel hits a dip or hole and...Ch. 46 - Which of the following is part of the sprung...Ch. 46 - What occurs when a wheel hits a dip or hole and...Ch. 46 - Describe the common complaints caused by faulty...
Ch. 46 - The modified MacPherson rear strut suspension is...Ch. 46 - What controls the movement of a vehicle as it...Ch. 46 - The coil springs of the vehicle_. a. support the...Ch. 46 - The two SLA systems in common use today are the...Ch. 46 - A multilink front suspension contains which of the...Ch. 46 - Technician A says that the use of firmer, urethane...Ch. 46 - Prob. 2ASRQCh. 46 - Technician A says that a weak suspension spring...Ch. 46 - Technician A says that leaf spring-type rear...Ch. 46 - Technician A says that shock absorbers should be...Ch. 46 - While discussing types of coil springs: Technician...Ch. 46 - When the front wheels are turned on a vehicle...Ch. 46 - Technician A says that the suspension switch must...Ch. 46 - While conducting a bounce test: Technician A says...Ch. 46 - Technician A says that rattling on road...
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- Given the following cross-sections (with units in mm): b) t=2 b=25 h=25 t = 1.5 b=20 b=25 t=2 I t = 1.5 a=10 b=15 h-25 b=15 t=3 T h=25 Figure 3: Cross-sections for problem 2. 1. For each of them, calculate the position of the centroid of area with respect to the given coordinate system and report them in the table below. 2. For each of them, calculate the second moments of inertia I... and I, around their respective centroid of area and report them in the table below. Note: use the parallel axes theorem as much as possible to minimize the need to solve integrals. Centroid position x y box Moment of inertia lyy by a) b) c) d) e)arrow_forwardProblem 1: Analyze the canard-wing combination shown in Fig. 1. The canard and wing are made of the same airfoil section and have AR AR, S = 0.25, and = 0.45% 1. Develop an expression for the moment coefficient about the center of gravity in terms of the shown parameters (, and zg) and the three-dimensional aerodynamic characteristics of the used wing/canard (CL C and CM). 2. What is the range of the cg location for this configuration to be statically stable? You may simplify the problem by neglecting the upwash (downwash) effects between the lifting surfaces and the drag contribution to the moment. You may also assume small angle approximation. Figure 1: Canard-Wing Configuration.arrow_forwardProblem 2: Consider the Boeing 747 jet transport, whose layout is shown in Fig. 2 and has the following characteristics: xoa 0.25, 8 5500/2, b 195.68ft, 27.31ft, AR, 3.57, V = 0.887 Determine the wing and tail contributions to the CM-a curve. You may want to assume CM, reasonable assumptions (e.g., -0.09, 0, -4°. i=0.0°, and i = -2.0°. Make any other 0.9).arrow_forward
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