AUTMOTIVE TECH, TECH MANUAL & MIND TAP
6th Edition
ISBN: 9781305383180
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 48, Problem 15RQ
Which of the following statements about seat belt retractors is not true?
- They stow away the scat belts when they are not being used.
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The single degree of freedom (SDOF) system that you studied under free vibration in Assignment #3 - Laboratory Component has been subjected to a strong ground motion. The acceleration at the base (excitation) and the acceleration at the roof (response) of the SDOF system was recorded with sampling rate 50 Hz (50 samples per second, or dt= 0.02 seconds). The file ElCentro.txt includes the two columns of acceleration data. The first column lists the acceleration at the base of the SDOF system. The second column lists the acceleration at the roof of the SDOF system. (a) Plot the time histories of the recorded accelerations at the base and at the roof of the SDOF system. (b) Compute the acceleration, velocity and displacement time histories of the roof of the SDOF system subjected to the recorded base acceleration using the Central Difference method. Plot the accel- eration, velocity and displacement time histories. Plot the restoring force, the damping force, and the inertia force time…
The single degree of freedom (SDOF) system that you studied under free vibration in Assignment #3 - Laboratory Component has been subjected to a strong ground motion. The acceleration at the base (excitation) and the acceleration at the roof (response) of the SDOF system was recorded with sampling rate 50 Hz (50 samples per second, or dt= 0.02 seconds). The file ElCentro.txt includes the two columns of acceleration data. The first column lists the acceleration at the base of the SDOF system. The second column lists the acceleration at the roof of the SDOF system. (a) Plot the time histories of the recorded accelerations at the base and at the roof of the SDOF system. (b) Compute the acceleration, velocity and displacement time histories of the roof of the SDOF system subjected to the recorded base acceleration using the Central Difference method. Plot the accel- eration, velocity and displacement time histories. Plot the restoring force, the damping force, and the inertia force time…
A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 43%.
60
Su = 66 ksi
Stress σ (ksi)
40 B
20
0
0
0
T
H
Sy = 39 ksi
Se = 36 ksi
Hot-rolled 1020 steel
F
10 20 30 40
50 60 70 80 90 100 110 120 130 140 150 160
Strain € (%)
T
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of strain is applicable to this location?
0.6
Chapter 48 Solutions
AUTMOTIVE TECH, TECH MANUAL & MIND TAP
Ch. 48 - What is the difference between a passive and an...Ch. 48 - Prob. 2RQCh. 48 - Describe the three types of safing sensors.Ch. 48 - Prob. 4RQCh. 48 - True or False? The air bag diagnostic monitor...Ch. 48 - True or False? The powdery substance released from...Ch. 48 - True or False? When servicing the steering wheel...Ch. 48 - Which of the following statements about the SRS...Ch. 48 - Describe the two basic types of passenger weight...Ch. 48 - What type of scat belt operates automatically with...
Ch. 48 - Which of the following is false? The air bag...Ch. 48 - List at least five service precautions that must...Ch. 48 - Prob. 13RQCh. 48 - Which of the following statements about two-stage...Ch. 48 - Which of the following statements about seat belt...Ch. 48 - Prob. 1ASRQCh. 48 - Technician A says that seat belt webbing should be...Ch. 48 - Technician A says that the module assembly will...Ch. 48 - While testing seat belt retractors: Technician A...Ch. 48 - Technician A checks the clockspring electrical...Ch. 48 - Technician A removes the positive battery cable...Ch. 48 - Technician A says that ignition of the air bag...Ch. 48 - Technician A says that the steering column...Ch. 48 - While diagnosing a seat belt that will not buckle:...Ch. 48 - While diagnosing the cause of a constant SRS...
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- A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 40%. 60 Su = 66 ksi Stress σ (ksi) S₁ = 39 ksi 40 Se = 36 ksi Hot-rolled 1020 steel 20 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Strain € (%) 0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Area ratio R 0.1 0.2 0.3 0.4 0.5 Area reduction A, What value of area ratio is applicable to this location? 0.6arrow_forwardA tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 43%. 60 Su = 66 ksi Stress σ (ksi) 20 Sy = 39 ksi Se = 36 ksi Hot-rolled 1020 steel F 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Strain € (%) 0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Area ratio R 0.1 0.2 0.3 0.4 0.5 Area reduction A, What value of area reduction is applicable to this location? 0.6arrow_forwardTable of Measurements and Results: Reading m/s Ji- a (wh Nu h Re Nu Error% (C) (°C) 2 1 Discussion: 1-Estimate the heat transfer and experimental value of the heat transfer coefficient hex with its unit and Nusselt number Nu expl 2- Find the percentage error for the value of the experimental Nusselt number. 3-Draw the graph showing a relationship between the temperatures difference (T-T) and theoretical and experimental value of Nusselt number. 4-The forced convection heat transfer coefficient of a plate depends on which of the following: a-gravity. b-velocity of fluid. e-conductivity of fluid. d-conductivity of plate material. Experiment: Internal Forced convenction Heat trovate on now through t objectives. Study the convection heat transfer of air flow through stage Calculations. Q & (T-T) Vary Re Q. heup A (TT) (T. Te-T ASPL Nep Re 117 RITT 14 ' 14arrow_forward
- If AE = 1.6 m, ED = CD = 1.9 m and F = 3.1 kN, then find the magnitude of the force acting in EB. B 30° 30° C E D ED m DC m ♥F KNarrow_forwardAssume multiple single degree of freedom systems with natural periods T ∈ [0.05, 2.00] seconds with in- crement of period dT = 0.05 seconds. Assume three cases of damping ratio: Case (A) ξ = 0%; Case (B) ξ = 2%; Case (C) ξ = 5%. The systems are initially at rest. Thus, the initial conditions are u(t = 0) = 0 and ̇u(t = 0) = 0. The systems are subjected to the base acceleration that was provided in the ElCentro.txt file (i.e., first column). For the systems in Case (A), Case (B), and Case (C) and for each natural period compute the peak acceleration, peak velocity, and peak displacement responses to the given base excitation. Please, use the Newmark method for β = 1/4 (average acceleration) to compute the responses. Create three plots with three lines in each plot. The first plot will have the peak accelerations in y-axis and the natural period of the system in x-axis. The second plot will have the peak velocities in y-axis and the natural period of the system in x-axis. The third plot…arrow_forwardDetermine the resultant stress at points P and Q.arrow_forward
- For the notched specimen with h = 0.13 m and r =11 mm, calculate the nominal stress for F=5 kN. F h F 25 mm Please submit your answer in the units of MPa.arrow_forwardA tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 49%. 60 Su = 66 ksi Stress σ (ksi) Sy = 39 ksi 400B Se = 36 ksi Hot-rolled 1020 steel 20 F 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Strain € (%) 0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Area ratio R 0.1 0.2 0.3 0.4 0.5 Area reduction A, What value of Su is applicable to this location? 0.6arrow_forwardA tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 40%. 60 Su = 66 ksi Stress σ (ksi) 40 20 Sy= = 39 ksi Se = 36 ksi Hot-rolled 1020 steel F | G | H 0 10 20 30 40 50 60 0 70 80 90 100 110 120 130 140 150 160 Strain € (%) ☐ T 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Area ratio R 0.1 0.2 0.3 0.4 0.5 Area reduction A, What value of Sy is applicable to this location? 0.6arrow_forward
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