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DEVAPRAKASAM DEIVASAGAYAM Professor of Mechanical Engineering Room:11, LW, 2 nd Floor School of Mechanical and Building Sciences Email: [email protected] , [email protected] ME202: Engineering Mechanics (3:1:0:4) Devaprakasam D, Email: [email protected] , Ph: +91 9786553933

ME202 Engineering Mechanics L7

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Page 1: ME202 Engineering Mechanics L7

DEVAPRAKASAM DEIVASAGAYAMProfessor of Mechanical Engineering

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

Email: [email protected], [email protected]

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

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Page 2: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Moment of A Couple

Page 3: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], 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

Page 4: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Equivalent Couples of Moment

Page 5: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Addition of Couples

Page 6: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Reduction of System of Force

Page 7: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], 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’

Page 8: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], 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’

Page 9: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Rigid Body Equilibrium

Page 10: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Example Problems

Page 11: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Example Problems

Page 12: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Example Problems

Page 13: ME202 Engineering Mechanics L7

Devaprakasam D, Email: [email protected], Ph: +91 9786553933

Example Problems