36_Problem CHAPTER 10

36_Problem CHAPTER 10 - PROBLEM 10.35 Knowing that the...

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PROBLEM 10.35 Knowing that the constant of spring CD is k and that the spring is unstretched when rod ABC is horizontal, determine the value of θ corresponding to equilibrium for the data indicated. 150 lb, 30 in., 40 lb/in. Plk === SOLUTION sin = A yl cos δ θδθ = A Spring: vC D = Unstretched when 0 = so that 0 2 vl = For : 90 2s in 2 °+  =   cos 45 2 δθ + Stretched length: 0 in 45 2 2 s vv l l =− = ° + − Then 2sin 45 2 2 == ° + Fk sk l Virtual Work: 0: 0 A UP y F v δδ =− = cos 2sin 45 2 cos 45 0 22 θθ  −° + ° + =   Pl kl l or 1 2sin 45 cos 45 2 cos 45 cos 2 2 2 + ° + ° + P
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This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.

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