Mechanical Engineering

Mechanical Engineering can be classified with respect to

1.      Size of object              (geometry)

2.      Motion of object         (position)

3.      Change wrt to Time                           

                                 

Ø  Size of object is whether macromolecular level or micromolecular level. The objects which we see around us are macromolecular level (Newtonian Mechanics to be followed). The objects like e^- , protons, neutrons etc are micromolecular level. Quarks and leptons (particle inside neutrons) are also considered in this level (Quantum Mechanics to be followed).

Ø  Motion of object is whether the body is at rest or moves {in uniform motion (v=c) or moves in non-uniform motion (v != c)}. Body at rest are called Static condition. Body in motion are called Dynamic condition.

Ø  With respect to Time the object can be considered to be steady (change wrt time is constant), unsteady (change wrt time is not constant), independent of time.

 STATIC BRIDGE AND DYNAMIC BOATS
STEADY BRIDGE AND UNSTEADY CLOUDS
NEWTONIAN MECHANICS