Question

1-1. The shaft is supported by a smooth thrust bearing at B and a journal bearing a at C. Determine the resultant internal loadings acting on the cross section at E.​

Answer 1

We have that the internal loadings acting on the cross section at E  is mathematically given as

M_e=-2400lbft

From the question we are told

• The shaft is supported by a smooth thrust bearing at B and a journal bearing a at C.
• Determine the resultant internal loading acting on the cross section at E.

Force

Generally the equation for the equilibrium moment about b is mathematically given as

$\sum m=0\\\\cy(8)+400(4)-800(12)=0\\\\cy=1000lb$

the equilibrium equation for xand y plane

\sum fx=o

\sumfy=0

V_e+cy-800=0

V_e+1000-800

V_e=-200lb

Therefore

1000(4)-800(8)-ME=0

• M_e=-2400lbft

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