Lecture 14 sect 4.3

Lecture 14 sect 4.3 - Where: = A c xdA A x 1 = A c ydA A 1...

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ME 221 Lecture 14 1 ME 221 Statics Lecture #14 Section 4.3
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ME 221 Lecture 14 2 Homework #5 Chapter 3 problems: May use MathCAD, etc. to solve Due Friday
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ME 221 Lecture 14 3 Homework #6 Chapter 4 problems: Must use integration methods to solve Due Wednesday, October 8
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ME 221 Lecture 14 4 Quiz #4 Monday, October 6 Exam #2 Friday, October 10
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ME 221 Lecture 14 5 Last Lecture: The concepts of distributed loads, centroids and center of gravity were presented.
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ME 221 Lecture 14 6 Centroid of an Area Geometric center of the area Average of the first moment over the entire area
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Unformatted text preview: Where: = A c xdA A x 1 = A c ydA A 1 y = A dA A ME 221 Lecture 14 7 Centroid of an Area Is then defined as an integral over the area. Integration of areas may be accomplished by the use of either single integrals or double integrals. ME 221 Lecture 14 8 Centroid of a Volume Geometric center of the volume Average of the first moment over entire volume In vector notation: = V c xdV V 1 x = V c ydV V 1 y = V rdV V 1 r c = V c zdV V 1 z ME 221 Lecture 14 9 Examples...
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Lecture 14 sect 4.3 - Where: = A c xdA A x 1 = A c ydA A 1...

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