6_Problem CHAPTER 10

6_Problem CHAPTER 10 - PROBLEM 10.6 An unstretched spring...

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PROBLEM 10.6 An unstretched spring of constant 4 lb/in. is attached to pins at points C and I as shown. The pin at B is attached to member BDE and can slide freely along the slot in the fixed plate. Determine the force in the spring and the horizontal displacement of point H when a 20-lb horizontal force directed to the right is applied ( a ) at point E , ( b ) at points D and E . SOLUTION First note: 33 GD G D x xxx δ =⇒ = 44 HD H D x xx x = 55 ID I D x =⇒= ( a ) Virtual Work: 0: 0 EE S PI UF x F x δδ =− =
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