Knowing that the coefficients of friction between the component I and member BC of the mechanism of Prob. 12.62 are μk = 0.35 and = 0.25, determine (μk a) the maximum allowable constant speed VB if the component is not to slide on BC while being transferred, (b) the values of 0 for which sliding is impending.Reference to Problem 12.62: The parallel-link mechanism ABCD is used to transport a compo-nent I between manufacturing processes at stations E, F, and Gby picking it up at a station when 0 = 0 and depositing it at thenext station when 0 = 180°. Knowing that member BC remainshorizontal throughout its motion and that links AB and CD rotateat a constant rate in a vertical plane in such a way that vgdetermine (a) the minimum value of the coefficient of static frictionbetween the component and BC if the component is not to slide onBC while being transferred, (b) the values of 0 for which sliding isimpending.2.2 ft/s, VBB.Ө10 in.10 in.20 in.20 in.10 in.10 in.

Draw the free-body diagram of the links.

Answered: The parallel-link mechanism ABCD is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Knowing that the coefficients of friction between the component I and member BC of the mechanism of Prob. 12.62 are μk = 0.35 and = 0.25, determine (μk a) the maximum allowable constant speed VB if the component is not to slide on BC while being transferred, (b) the values of 0 for which sliding is impending.
Reference to Problem 12.62:

The parallel-link mechanism ABCD is used to transport a compo-
nent I between manufacturing processes at stations E, F, and G
by picking it up at a station when 0 = 0 and depositing it at the
next station when 0 = 180°. Knowing that member BC remains
horizontal throughout its motion and that links AB and CD rotate
at a constant rate in a vertical plane in such a way that vg
determine (a) the minimum value of the coefficient of static friction
between the component and BC if the component is not to slide on
BC while being transferred, (b) the values of 0 for which sliding is
impending.
2.2 ft/s,

VB
B.
Ө
10 in.
10 in.
20 in.
20 in.
10 in.
10 in.

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