J_-_Moment_about_an_Axis

J_-_Moment_about_an_Axis - FORCE SYSTEM FORCE SYSTEM...

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Unformatted text preview: FORCE SYSTEM FORCE SYSTEM RESULTANTS RESULTANTS MOMENT ABOUT AN AXIS MOMENT ABOUT AN AXIS LEARNING OBJECTIVES LEARNING OBJECTIVES Be able to determine the moment of a Be able to determine the moment of a force about a specified axis using scalar force about a specified axis using scalar and vector methods and vector methods PRE-REQUISITE KNOWLEDGE PRE-REQUISITE KNOWLEDGE Units of measurements Units of measurements Trigonometry concepts Trigonometry concepts Vector concepts Vector concepts Rectangular components concepts Rectangular components concepts Moment concept Moment concept Cross product and dot product Cross product and dot product MOMENT OF A FORCE ABOUT A SPECIFIED AXIS MOMENT OF A FORCE ABOUT A SPECIFIED AXIS (Scalar Method) (Scalar Method) b d F M = ob Where M ob is the moment of the force F about the Ob axis and d b is the perpendicular or the shortest distance from the force to the axis EXAMPLE The Moment arm about the y-axis is 0.3 m, M y = 6 N-m The Moment arm about the Ob-axis is 0.5 m , M ob = 10 N-m The Moment arm about the x-axis, is 0.4 m, M x = -8 N-m MOMENT OF A FORCE ABOUT A SPECIFIED AXIS MOMENT OF A FORCE ABOUT A SPECIFIED AXIS (Vector Method (Vector Method ) ) ( 29 F r u OA Ob Ob = M Where u Ob is the unit vector...
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This note was uploaded on 07/26/2009 for the course CE 221 taught by Professor Buch during the Spring '08 term at Michigan State University.

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J_-_Moment_about_an_Axis - FORCE SYSTEM FORCE SYSTEM...

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