Automobile:
A
self propelled vehicle, which is used to carry loads is called automobile.
Frame:
A structure
on which all the body parts & accessories are mounted is called frame.
Generally frames
are made of Cast Iron.
Frames are of 2 types:
- Conventional Frame
- Integral Frame (Frame less)
1. Conventional Frame:
It has only Basic frame structure
It has 2 long side members and 5 to 6 cross members joined
together with the help of rivets and bolts.
The frame sections are used generally.
A. Channel Section – Good resistance to bending
B. Tabular Section – Good resistance to Torsion
C. Box Section – Good resistance to both bending and Torsion
2.Integral Frame (Frame less)
In this type
there is no frame (frame is not used) and all the elements are attached to this body.
As we don’t
use frame, it is cheaper.
Only
Disadvantage is repairing is difficult.
Chassis:
It is
defined as the Internal Framework, which consists of frame and all the elements
which are responsible for Propelling & controlling the Vehicle.
ie., Chassis
means whole vehicle except body.
Chassis
consists of engine, brakes, steering system & wheel mounted on the frame,
differential, suspension.
Chasis: (Hint: TPCS lo BA course 😋 )
B- Basic
Structure
Frame
Suspension System
Frame
Suspension System
Axles
Wheels
A- Auxiliaries
T-
Transmission System
Gears
Clutch
Propeller Shaft
Differential
P- Power Uni
Engine
C- Controls
Braking System
Steering System
S- Super
Structure
Body:
It is the
Super Structure of the Vehicle.
Both Chassis
& Body make a complete Vehicle.
Generally
Body is made from metal or fiber.
Main Purpose
of a automobile body is to provide Good Look, Comfort and Protection( from
sunlight, dust, air etc.,)