Lecture06_ME343F09

Lecture06_ME343F09 - ME343-Dynamics of Machinery -...

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ME343-Dynamics of Machinery - Acceleration Analysis Oct. 20 th , 2008
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Overview CH 6 Location of all instant centers graphical / analytical Instant center velocity analysis CH 7 Acceleration definition Normal and tangential components
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Locating Instant Centers?
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Instant Center of Velocity A point, common to two links (or bodies) in a plane, which point has the same instantaneous velocity in each link (or body) The number of instant centers, C of n links in the plane is: 2 ) 1 ( - = n n C
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Primary Instant Centers The instant center fro two links with straight line sliding The instant center for two links connected by a pin
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Kennedy’s Theorem “The three instant centers corresponding with any three bodies all lie on the same straight line.” Instant centers that cannot be found from the primary centers are located with the use of Kennedy’s Theorem .
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An instant center diagram is a graphical technique used to track the instant centers that have been located and those that still need to be found. The instant center diagram is a circle divided
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This note was uploaded on 01/30/2010 for the course ME 343 taught by Professor Varischetti during the Fall '09 term at Nevada.

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Lecture06_ME343F09 - ME343-Dynamics of Machinery -...

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