The document discusses tires (tyres) for automobiles. It describes the basic functions and components of a tire, including the outer cover and inner tube. It discusses different types of tire casings (carcasses) such as cross-ply, radial-ply, and belted bias-ply tires. Radial tires are described as having advantages over bias-ply tires like better handling and reduced rolling resistance. The document also covers tire materials, tread design considerations, tire wear factors, troubleshooting tire issues, and the tire manufacturing process.
Automobile or Automotive Tires:-
Functions (cushion and traction),
Parts (Beads, Body Plies, Tread, Sidewall, Liner, Belts) Overview of Tyre
Types ( All-terrain Tires, Mud tires, Winter Tires, All weather Tires, performance tires).
Load index and speed rating.
Designation and Dimension of Tires.
length width height diameter type of tires
tire construction :( Bias Ply Tires, Radial Tyres, Belted Bias Tires.)
Advantage and disadvantages of tires construction
Tube type tires
tubless tires
Difference between tubeless and tube type tires
Expiry date of tires
tyre problems
steering geometry leads tire problems
Under inflated tires
over inflated tires
proper inflated tires
Tubeless tires are designed in such a manner that the tire itself functions like a tube. The plies of the tire are similar whether it is a radial tire or a tubeless tire, but the difference is the presence of a inner lining layer that is made up of halogen butyl rubber such as chlorobutyl or bromobutyl rubber. This rubber has a special property of sealing any small puncture caused by a small nail or any other sharp object. This means that even if there is any mishap with a nail and a small puncture is caused by it, the tire seals the leakage itself by closing the leakage and the vehicle can cover distances up to 200 km without having to stop or getting the assistance of a mechanic to get the tire repaired.
Automobile or Automotive Tires:-
Functions (cushion and traction),
Parts (Beads, Body Plies, Tread, Sidewall, Liner, Belts) Overview of Tyre
Types ( All-terrain Tires, Mud tires, Winter Tires, All weather Tires, performance tires).
Load index and speed rating.
Designation and Dimension of Tires.
length width height diameter type of tires
tire construction :( Bias Ply Tires, Radial Tyres, Belted Bias Tires.)
Advantage and disadvantages of tires construction
Tube type tires
tubless tires
Difference between tubeless and tube type tires
Expiry date of tires
tyre problems
steering geometry leads tire problems
Under inflated tires
over inflated tires
proper inflated tires
Tubeless tires are designed in such a manner that the tire itself functions like a tube. The plies of the tire are similar whether it is a radial tire or a tubeless tire, but the difference is the presence of a inner lining layer that is made up of halogen butyl rubber such as chlorobutyl or bromobutyl rubber. This rubber has a special property of sealing any small puncture caused by a small nail or any other sharp object. This means that even if there is any mishap with a nail and a small puncture is caused by it, the tire seals the leakage itself by closing the leakage and the vehicle can cover distances up to 200 km without having to stop or getting the assistance of a mechanic to get the tire repaired.
Design of half shaft and wheel hub assembly for racing carRavi Shekhar
The Half - Shaft and Wheel Hub of Formula One racing car was designed taking into consideration one of the popular model of Redbull racing car. The various dimension of shaft and hub were altered to attain maximum factor of safety.
This presentation is all about the latest innovation of the air -free tire concept by BRIDGESTONE, in the automobile sector. this will tell us how such tires actually works and has an edge over normal and tubeless tires.
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Study and Analysis of Automotive Seating System Riser Design & Development fo...ijsrd.com
Seat is a sub system of automobile or vehicle. It is the main aggregate in a vehicle, which impacts the visibility, comfort, safety for the occupant. H-point plays vital role in seat system design & occupant safety. As a part of vehicle development, requirement raised is to have elevated H-point to have better visibility & control for occupant. Use of carryover seat with minimum part alterations is a challenge. After studying all relative factors, it has been decided to integrate carry over seat with BIW by addition of seat riser member. This paper speaks about design and development of seat riser member for automotive seat.
The presentation discuss about rolling resistance, Various parameters and factors affecting rolling resistance. Then compares different types of Tyres, and type of road surfaces and their effect on rolling resistance.
Design of half shaft and wheel hub assembly for racing carRavi Shekhar
The Half - Shaft and Wheel Hub of Formula One racing car was designed taking into consideration one of the popular model of Redbull racing car. The various dimension of shaft and hub were altered to attain maximum factor of safety.
This presentation is all about the latest innovation of the air -free tire concept by BRIDGESTONE, in the automobile sector. this will tell us how such tires actually works and has an edge over normal and tubeless tires.
Weight reduction technologies in the automotive industryAranca
Weight reduction technologies in the automotive industry Find special reports on industries, latest innovations & technology trends, business analysis, intellectual property & patent industry & other knowledge reports created by Aranca, a global provider of outsourced research & analytics services firm & a trusted research partner for various global clients.
Three steps to design car seats at vehicle concept using digital human body models with Oscar and H-point to remain consistent with Federal laws and SAE recommended practicies.
Study and Analysis of Automotive Seating System Riser Design & Development fo...ijsrd.com
Seat is a sub system of automobile or vehicle. It is the main aggregate in a vehicle, which impacts the visibility, comfort, safety for the occupant. H-point plays vital role in seat system design & occupant safety. As a part of vehicle development, requirement raised is to have elevated H-point to have better visibility & control for occupant. Use of carryover seat with minimum part alterations is a challenge. After studying all relative factors, it has been decided to integrate carry over seat with BIW by addition of seat riser member. This paper speaks about design and development of seat riser member for automotive seat.
The presentation discuss about rolling resistance, Various parameters and factors affecting rolling resistance. Then compares different types of Tyres, and type of road surfaces and their effect on rolling resistance.
2. Contents
Tyre-functions & Properties.
Tyre-Types
Types of carcass(Tread)
Comparison of radial & bias-ply tyres
Tyre materials & Considerations in tread
design
Tyre designation & Factors affecting tyre
life
Tyre trouble shooting & Tyre
manufacturing
3. Tyre and its functions
Tyre is a rubber member which gives
the cushion to the automobile. It
consists of outer cover i.e. tyre proper
and tube inside.
The tyre-tube assembly is mounted over
the wheel rim and air inside the tube
carries entire load and provides
cushion.
5. Functions of tyre
To support the vehicle load.
To provide cushion against the
shocks.
To transmit driving and braking
forces to the road.
To provide cornering power for
smooth steering.
18. Comparison of radial and bias-ply
tyres
Advantages of radial ply tyres:-
The side walls can be bend readily ,its shock
absorbing capacity is 25% more than bias
ply or cross ply.
The breaker strips of radial tyres act
independently of the wall plies unlike in
cross ply where there is no breaker strip.
Lower rolling resistance and hysteresis loss
leads to less fuel consumption.
19. Longer tread life because of less heat build
in tyre.
Breaking efficiency on wet roads is better
because of greater sidewall flexibility and
tread stiffness.
Smaller slip angles and higher cornering
power which results in Better steering
characteristics.
While taking turns it has less tendency to
distort and lift off the road from one side.
Larger resistance to punctures ,cuts and
impacts in the tread area.
20. Tyre materials
For carcass:-
At the time of second world war, staple cotton
was the tyre carcass material and it was
replaced with rayon.
Then nylon was introduced which is stronger,
more elastic and cooler running than rayon.
Then terylene was introduced.
21. For cords of stabilizer belts:-
Rayon ,Terylene ,glass fibre or steel.
Rubber :-
Rubber used in tyres is blend of natural and
synthetic rubbers to which various
chemicals are added to obtain desired
properties like wear resistance ,reduced
hysteresis, less internal friction.
25. Factors affecting tyre life
Inflation
Vehicle maintenance
Manner of driving
Miscellaneous factors
26. Tyre trouble shooting
Side wear of tyres
One side wear of tyres
Centre wear of tyre tread
Uneven tyre wear
Uniform rapid wear
Rapid wear with feathered edges on the tread
Tread cracking
Tread or ply separation
Loss of tyre pressure
Radial tyre lead
Radial tyre waddle