4 – Bar Linkage Research

Terminology

·        Linkage: System of links connected at joints

·        Join: Connection between two or more links at their nodes, which allows motion to occur

·        Link: Rigid body that has at least 2 nodes where other links can be attached

·        Degrees of freedom (DOF): The number of input motions that must be provided in order to provide the desired output

Common usages in vehicles

·                  Simple steering systems

o   Go carts and trailers use a double four bar linkage system to steer

Open

·                  Windshield wipers

Open

·                  Suspension Systems

o   Mountain Bikes use a 4-bar suspension system

Sources:

http://pergatory.mit.edu/resources/FUNdaMENTALs%20Book%20pdf/FUNdaMENTALs%20Topic%204.PDF

https://www.machinedesign.com/news/article/21817009/how-to-design-a-double-fourbar-steering-system

https://slideplayer.com/slide/250280/