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Lecture_14_Accel_4-bar-2 - ME371 Chapter7 ME 371 Lecture 16...

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ME 371 Lecture 16 1 ME 371 Chapter 7 Acceleration Analysis
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ME 371 Lecture 16 2 Acceleration Analysis Acceleration Rate of change of velocity with respect to time May be  Angular  or  Linear dt dV A dt d = = = = on Accelerati Linear on Accelerati Angular ϖ α
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ME 371 Lecture 16 3 Acceleration review Position and Velocity of a  point Position of point P (with respect to A) Velocity of point P (with respect to A) ω is + ccw and − cc ) 90 ( 0 + = = = = θ θ θ ϖ ϖ θ j j j PA PA e p je p dt d pje dt dR V θ j PA pe R =
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ME 371 Lecture 16 4 Acceleration review Acceleration of a  point ( 29 component normal the component tangential the n PA t PA n PA t PA PA j j PA j j PA j PA PA A A A A A e p je p A dt d je dt d e jp A dt je p d dt dV A + = - = + = = = θ θ θ θ θ ϖ α θ ϖ ϖ ϖ 2
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ME 371 Lecture 16 5 Acceleration review Acceleration of a  point θ θ θ θ ϖ α ϖ α j n PA j t PA n PA t PA PA j j PA PA A P e p A je p A A A A e p je p A A A A 2 2 - = = + = - = + =
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ME 371 Lecture 16 6
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