Chapter 2
The Grashof Condition - As Simple As It Gets The Grashof condition is the condition that must be proven to be true so that one link on a system is able to make a full revolution. This condition is listed as the following: S + L < P + Q This equation written out is Shortest Link + Longest Link < Remaining Link 1 + Remaining Link 2 The answer to the equation after plugging in all of the values from your own links will then determine whether or not the linkage is considered to be Grashof. This relationship is one that can make a potentially impossible linkage become much more manageable or at least let you know you need to redo something before moving on. The values on both sides of the equation will help you to understand the motion that will occur. Classes The values you get on each side of the equation will then allow you to determine what type of class it will be. These classes are to help you determine what inversion of the fourbar linkage it will be. There are...