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MECHANICS OF MACHINESMECHANICS OF MACHINES

ME-309Yehia A. Khulief, PhD, PEYehia A. Khulief, PhD, PE

ProfessorProfessorMechanical Engineering, KFUPM

Room 22-203, Tel: 2327

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MECHANICS OF MACHINESMECHANICS OF MACHINES

Example-1

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DetermineDetermine

2 50 /secrad CW

3 4, , .Eand v

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Draw the mechanism to a suitablesuitable scale; e.g. --------------- ?

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Write relative velocity equation

BCBC vvv / * *

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Draw Vel-polygon to suitablesuitable scale; e.g. 1cm:20in/sec ?

v0

B

C

E

BCBC vvv /

Bv

Cv/C Bv

Ev

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Construct Velocity Image. ?

v0

B

C

EBv

Cv

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/ /3

/

( )

, . . (5.15")C B C B

C B

v v measured from Polygon vel scale

r Actual diemnsion of CB i e

4( )

, . . (2.75")C C

C

v v measured from Polygon vel scale

r Actual diemnsion of CD i e

( )Ev measured from Polygon vel scale

See class demonstrations on how See class demonstrations on how directionsdirections are determined are determined

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