05-10-2012, 05:09 PM
TRIBOLOGY
PPT tribology.pptx (Size: 506.69 KB / Downloads: 96)
Tribology is the study of friction, wear and lubrication, contributes in the effort of minimizing wear and loses due to contact between two surfaces.
Two bodies in relative motion .
Results
Friction
Static friction
Frictional heat, resistance against movement (friction force), loss of energy.
Wear
Material loss degradation of surface, decreasing functionality.
Types of motion
There are two types of motion in between two moving parts.
Sliding motion
e.g.: piston in IC engine.
Rolling motion
e.g.: bearings.
TRIBOLOGY IN PISTON RINGS AND CYLINDER LINER
Cylinder liner is a fixed one and piston will slides up and down inside on it.
Now there is a friction in between these parts , it results wear.
It can be reduced by applying a lubricant.
APPLICATIONS SOYBEAN OIL
Used in IC engines.
Used at lathe bed.
Used as hydraulic oil.