Lecture 31 sect 6.6

Lecture 31 sect 6.6 - ME221 Lecture#31 1 ME 221 Statics...

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Unformatted text preview: ME221 Lecture #31 1 ME 221 Statics Lecture #31 Sections 6.6 – 6.7 ME221 Lecture #31 2 Homework #11 Chapter 6 problems: – 2, 3, 6 & 7 – Method of Joints – 32, 36, 47 & 53 – Method of Sections – 68 & 75 • Due Wednesday, November 19 ME221 Lecture #31 3 Exam #3 Results Scores posted on Angel Solution posted on Angel See syllabus for regrade policy ME221 Lecture #31 4 Trusses Composed of slender straight pieces connected together by frictionless pins where all the loads (no moments) are applied. Each member will act as a two-force member (either in tension or compression). All the forces acting on a truss member are axial. ME221 Lecture #31 5 Analysis of Trusses Using the Method of Joints A y A x C y A B C α β We need to solve for: (1) - Internal forces F AB , F AC , and F CA (2) - Reactions A x , A y and C y ME221 Lecture #31 6 Using Matrix Notation ----- 1 sin cos 1 sin sin cos cos 1 sin...
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This note was uploaded on 07/25/2008 for the course ME 221 taught by Professor Buch during the Summer '08 term at Michigan State University.

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Lecture 31 sect 6.6 - ME221 Lecture#31 1 ME 221 Statics...

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