AUTOMOTIVE TECHNOLOGY TECH MANUAL
7th Edition
ISBN: 9781337794220
Author: ERJAVEC
Publisher: CENGAGE L
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Textbook Question
Chapter 8, Problem 8MC
Which of the following statements about drive belt slippage is not true?
- Excessive heat normally comes from slippage.
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Mechanical engineering
Mechanical engineering question.
A shaft is loaded in bending and torsion such that Ma = 70 N·m, T₁ = 45 N · m, M =
55 N. m, and T = 35 N m. For the shaft, S₁ = 700 MPa and S = 560 MPa, and a fully
corrected endurance limit of S₂ = 210 MPa is assumed. Let K = 2.2 and K = 1.8. With a
Se
design factor of 2.0 determine the minimum acceptable diameter of the shaft using the
a) DE- Goodman
b) DE-Morrow
c) DE-Gerber
d) DE-SWT
Chapter 8 Solutions
AUTOMOTIVE TECHNOLOGY TECH MANUAL
Ch. 8 - Describe the information found in a VIN.Ch. 8 - List five different types of oil rating systems.Ch. 8 - Why should you wipe off the outside of a zerk...Ch. 8 - List at least five things that should be checked...Ch. 8 - How does a technician determine the proper...Ch. 8 - Explain the purpose of a repair order and describe...Ch. 8 - True or False? Legally, an RO protects the shop...Ch. 8 - True or False? If brake fluid is discolored, the...Ch. 8 - Prob. 3TFCh. 8 - True or False? An oil with the classification of...
Ch. 8 - Technician A stresses the need to follow the...Ch. 8 - Prob. 2MCCh. 8 - Prob. 3MCCh. 8 - While examining the color of an engines coolant:...Ch. 8 - While checking the condition of a vehicles ATF:...Ch. 8 - Technician A says that if a drive belt does not...Ch. 8 - Technician A says that to accurately check brake...Ch. 8 - Which of the following statements about drive belt...Ch. 8 - Which of the following statements about an oils...Ch. 8 - While discussing a vehicles maintenance program:...Ch. 8 - Which of the following is not a true statement...Ch. 8 - While discussing the effects of overtorquing wheel...Ch. 8 - The most commonly used brake fluid in domestic...Ch. 8 - Which of the following greases are best suited for...Ch. 8 - While discussing the special preventive...
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- An aluminum rod of length L = 1m has mass density ρ = 2700 kgm3 andYoung’s modulus E = 70GPa. The rod is fixed at both ends. The exactnatural eigenfrequencies of the rod are ωexactn =πnLqEρfor n=1,2,3,. . . .1. What is the minimum number of linear elements necessary todetermine the fundamental frequency ω1 of the system? Discretizethe rod in that many elements of equal length, assemble the globalsystem of equations KU = ω2MU, and find the fundamentalfrequency ω1. Compute the relative error e1 = (ω1 − ωexact1)/ωexact1.Sketch the fundamental mode of vibration.arrow_forwardProblem 1 (65 pts, suggested time 50 mins). An elastic string of constant line tension1T is pinned at x = 0 and x = L. A constant distributed vertical force per unit length p(with units N/m) is applied to the string. Under this force, the string deflects by an amountv(x) from its undeformed (horizontal) state, as shown in the figure below.The PDE describing mechanical equilibrium for the string isddx Tdvdx− p = 0 . (1)(a) [5pts] Identify the BCs for the string and identify their type (essential/natural). Writedown the strong-form BVP for the string, including PDE and BCs.(b) [10pts] Find the analytical solution of the BVP in (a). Compute the exact deflectionof the midpoint v(L/2).(c) [15pts] Derive the weak-form BVP.(d) [5pts] What is the minimum number of linear elements necessary to compute the deflection of the midpoint?(e) [15pts] Write down the element stiffness matrix and the element force vector for eachelement.arrow_forwardProblem 1 (35 pts). An elastic string of constant line tension1 T is pinned at x = 0 andx = L. A constant distributed vertical force per unit length p (with units N/m) is appliedto the string. Under this force, the string deflects by an amount v(x) from its undeformed(horizontal) state, as shown in the figure below.Force equilibrium in the string requires thatdfdx − p = 0 , (1)where f(x) is the internal vertical force in the string, which is given byf = Tdvdx . (2)(a) [10pts] Write down the BVP (strong form) that the string deflection v(x) must satisfy.(b) [2pts] What order is the governing PDE in the BVP of (a)?(c) [3pts] Identify the type (essential/natural) of each boundary condition in (a).(d) [20pts] Find the analytical solution of the BVP in (a).arrow_forward
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