Lecture 07 - ME 221 Statics Lecture #7 Sections 4.1 4.3...

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ME221 Lecture 7 1 ME 221 Statics Lecture #7 Sections 4.1 – 4.3
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ME221 Lecture 7 2 Homework #3 Chapter 3 problems: Chapter 4 problems: Must use integration methods to solve Due Monday, June 7
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ME221 Lecture 7 3 Quiz #4 Monday, June 7
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ME221 Lecture 7 4 Distributed Forces (Loads); The concept of distributed loads will be introduced Center of mass will be discussed as an important application of distributed loading mass, (hence, weight), is distributed throughout a body; we want to find the “balance” point
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ME221 Lecture 7 5 Distributed Loads Two types of distributed loads exist: forces that exist throughout the body e. g., gravity acting on mass these are called “body forces” forces arising from contact between two bodies these are called “contact forces”
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ME221 Lecture 7 6 Contact Distributed Load Snow on roof, tire on road, bearing on race, liquid on container wall, . ..
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Lecture 7 7 Center of Gravity x y z w 5 (x 5 ,y 5 ,z 5 ) ˜ ˜ ˜ x y z w 3 (x 3 ,y 3 ,z 3 ) ˜ ˜ ˜ w 1 (x 1 ,y 1 ,z 1 ) ˜ ˜ ˜ w 2 (x 2 ,y 2 ,z 2 ) ˜ ˜ ˜ w 4 (x 4 ,y 4 ,z 4 ) ˜ ˜ ˜ The weights of the n particles comprise a system of parallel forces. We can
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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 07 - ME 221 Statics Lecture #7 Sections 4.1 4.3...

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