Laboratory 1
Four-Bar Linkages

MECH324
Dynamics of Machines

Name: __________________________Lab Sect. _______

Date: _______________

 

Configuration (a)

  1. Is this a Grashof or non-Grashof mechanism? __________________

  2. If side Z is the ground link, label each of the three moving links as either a "crank" or a "rocker."

    X ________________     Y________________      W________________

  3. Repeat #2 using an inversion of this linkage. Specify the ground link ______.

       ________________       ________________        ________________

     
  4. If side Z is the ground link, sketch the toggle position(s) of the mechanism, if there are any (indicate if there are none):
     
     

  5. If side Z is the ground link and side Y is the driver (input), what are the minimum and maximum transmission angles?

    min __________________        max __________________

    Is this a "good" transmission angle range?  Why or why not?

    _____________________________________________________________________________________________

    _____________________________________________________________________________________________

 

 


Configuration (b)

  1. Is this a Grashof or non-Grashof mechanism? __________________

  2. If side Z is the ground link, label the three moving links as cranks or rockers.

    X ________________     Y________________      W________________

  3. Repeat #2 using an inversion of this linkage. Specify ground link ______.

       ________________       ________________        ________________

     
  4. If side Z is the ground link, sketch the toggle position(s) of the mechanism, if there are any (indicate if there are none):
     
     

  5. If side Z is the ground link and side Y is the driver (input), what are the minimum and maximum transmission angles?

    min __________________        max __________________

    Is this a "good" transmission angle range?  Why or why not?

    _____________________________________________________________________________________________

    _____________________________________________________________________________________________





Configuration (c)

  1. Is this a Grashof or non-Grashof mechanism? __________________

  2. If side Z is the ground link, label the three moving links as cranks or rockers.

    X ________________     Y________________      W________________

  3. Repeat #2 using an inversion of this linkage. Specify ground link ______.

       ________________       ________________        ________________

     
  4. If side Z is the ground link, sketch the toggle position(s) of the mechanism, if there are any (indicate if there are none):
     
     


  5. If side Z is the ground link and side Y is the driver (input), what are the minimum and maximum transmission angles?

    min __________________        max __________________

    Is this a "good" transmission angle range?  Why or why not?

    _____________________________________________________________________________________________

    _____________________________________________________________________________________________