ME202 Engineering Mechanics L7

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Transcript of ME202 Engineering Mechanics L7

DEVAPRAKASAM DEIVASAGAYAMProfessor of Mechanical Engineering

Room:11, LW, 2nd FloorSchool of Mechanical and Building Sciences

Email: devaprakasam.d@vit.ac.in, dr.devaprakasam@gmail.com

ME202: Engineering Mechanics (3:1:0:4)

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Moment of A Couple

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Moment of a Couple

Two couples , one consisting of the forces F1 and –F1, the other of F2 and –F2, will have equal moment if F1d1= F2d21

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Equivalent Couples of Moment

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Addition of Couples

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Reduction of System of Force

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Reduction of System of Force

Any force ‘F’ acting on a rigid body can be moved to an arbitrary point ‘O’provided that a couple is added whose moment is equal to the moment of Fabout ‘O’

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Resolution of Force into Force at ‘O’ and a Couple

Any force ‘F’ acting on a rigid body can be moved to an arbitrary point ‘O’provided that a couple is added whose moment is equal to the moment of Fabout ‘O’

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Rigid Body Equilibrium

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Example Problems

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Example Problems

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Example Problems

Devaprakasam D, Email: devaprakasam.d@vit.ac.in, Ph: +91 9786553933

Example Problems