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Proving a 2D slider crank mechanism fits the Gruebler's Equation

  • Thread starter bortonj88
  • Start date
  • #1
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Homework Statement


Need to prove that a slider crank mechanism fits the Grueblers eqaution, already done for a four bar mechanism no problem, however having some serious problems with the slider crank. If l is the number of links and j is the number of joints


Homework Equations


Grueblers equation is
3l-2j-4=0

The Attempt at a Solution


Looking at a slider crank mechanism, i deduced that l=4 and j=3, however it does not fit the grueblers equation
 

Answers and Replies

  • #2
Slide crank is also a kind of four bar.(You need 4 vector to describe that,if it has offset.)

The block count one. i=4 , j=4 .
 

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