fundamentals of machine component desing 4th solution

8/12/2019 Fundamentals of Machine Component Desing 4th Solution

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There is no prepared solution for Problem 1.10.



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There is no prepared solut ion for Problem 1.9.



Rear wheel gravity load = 800(440/1000) = 352N.




3. At any section, θ, the loads are M = PR sinθ, F=P sinθ, and V = P cosθ.




3. The motor exerts negligible torque on the wheels (the motor is disconnected.




Sy = 1.05Su – 30,000 psi = 36.150 psi.




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Continued on next page.




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2. The deflection due to shear force is negligible.




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Analys is: Corrosion of the (sacrificial) magnesium plug would occur at the threads,

causing it to loosen and leak. Corrosion of the exposed surfaces of the plug withmagnesium insert would not affect plug sealing.




4. Electroplating




Analys is :(a) Assuming an ordinary non-corrosion-resistant steel, the steel would be the more

active (anodic) and would corrode in both cases (1) and (2).




L = 2p = 0.4 in. = 0.0102 m.




Hence At = 51.7 mm2




plane of the weld pattern when computing torsional stresses. Also, for

calculating the weld dimension h, t is assumed to be in a 45° plane. Thissimplification although not theoretically correct is justified for most engineeringapplications.




• Decreased strength at elevated temperatures, especially under long time

loading.

• Possible degradation of bond by environmental influence.




There is no prepared solution for Problem 12_49.



No solution has been prepared for Problem 12.9.



or




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say F = 6120 N.



T = 207 Nm.


fundamentals of machine component desing 4th solution

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