Design, Analysis & Characterization of Peripheral Disc Brake System For Motor Cycle Front Wheel

1. Presentation on
“Design, Analysis &
Characterization of Peripheral Disc
Brake System For Motor Cycle Front
Wheel”
by
Padwal A. J.

2. CONTENTS
• I INTRODUCTION
1. 1 Introduction of Brake
1. 2 Disc damage modes
1. 3 Advantages and Disadvantages of Disc Brakes
1. 4 Types of Brakes:
1. 5 Problems in Conventional Disk Brakes:
1. 6 Problem Statement :
1. 7 Objectives:
1. 8 Methodology:
1. 9 Future scope:

3. II COMPARISON OF PERIPHERAL DISC
BRAKE SYSTEM WITH THE
CONVENTIONAL DISC BRAKE SYSTEM
III LITERATURE SURVEY
IV CONSTRUCTION AND WORKING OF
THE SETUP
V DISCUSSION
IV REFERENCES

4. •INTRODUCTION
1. 1 Introduction of Brake
A disc brake is a type of brake that uses callipers to squeeze pairs of pads
against a disc in order to create friction that retards the rotation of a shaft, such
as a vehicle axle, either to reduce its rotational speed or to hold it stationary
The brake disc (or rotor in American English) is usually made of cast iron,
but may in some cases be made of composites such as reinforced carbon–
carbon or ceramic matrix composites. This is connected to the wheel and/or
the axle

6. 1. 2 Disc damage modes
Scarring
Cracking
Warping
Excessive rusting

7. 1. 3 Advantages and Disadvantages of
Disc Brakes
•They aren't affected by rim damage or out-of-true.
They don't risk brake shoes' damaging the tire or diving under the rim
and locking the wheel
•They don't get clogged with mud and snow.
•They also dissipate heat without overheating the tire -- of
special importance when used as a downhill drag brake on a
tandem or cargo bike.

8. •A front disc brake stresses one blade of the front fork very
heavily, requiring a stronger, heavier fork, resulting in a
bumpier ride with a non-suspension fork, and if a fork isn't
quite rigid enough, producing 'brake steer".
•A front disc brake caliper behind the fork blade generates
a powerful force tending to loosen a quick release and pull
the wheel out of the fork. Special hub and fork designs are
needed to surmount this problem.
•Disc brakes are generally heavier than rim brakes
•Disc brakes are more complicated, expensive and difficult
to maintain than rim brakes or drum brakes.
Disadvantages of Disc Brakes

9. Problems in Conventional Disk Brakes
Schematic showing load path for conventional disc brake
set up

10. Peripheral Disk Brakes

11. Fig: Schematic showing load path
for peripheral disc brake set-up
Peripheral Disk Brakes

12. 1. 6 Problem Statement :
•Increasing the position vector of disk brake by fitting it on the
periphery of wheel rim, due to which the radius of wheel rim
increase and also stopping power increase which, reduces the
braking distance.
•Conventional disc brakes need more brake force, induce more
bending and shear stress in wheel spokes also more radial thrust
on bearing

13. Objectives
•Experimental testing of the conventional wheel mounted disk
brake system. To determine braking distance, Vibration (velocity
and acceleration parameters—using micrometer), and brake
power absorbed at various vehicle speeds.
•Experimental testing of the perimeter disk brake system. To
determine braking distance, Vibration (velocity and acceleration
parameters—using micrometer), and brake power absorbed at
various vehicle speeds

14. •Because of light weight spokes gives more efficiency.
•Reduced unsprung mass and higher power to weight ratio.
•Brake force requirement is less.

15. Break Force

18. Methodology:
1. Literature Review
2. Component Design
3. Mechanical Design
4. Production Drawing Preparation
5. Analysis of Project Model
6. Material Procurement & Process Planning
7. Manufacturing
8. Assembly As Well, As Test &
9. Conclusion
10. Report Preparation

19. Future scope
a.Material can be changed to high carbon steel to further increase
strength.
b.Profile cutting can be done to reduce weight of brake disk.
c.Modular arrangement can be used to fit the caliper

20. LITERATURE SURVEY
Shivankur Mittal, et al.[1] It can be seen that peripheral disc
brakes need lesser brake force for same end effects, induce the
rest bending and shear stress in wheel spokes and lesser radial
thrust at the wheel bearing. All these factors allow for a very
light weight motorcycle front wheel. Lighter weight means more
efficiency, reduced unsprung mass and a higher power to weight
ratio.
Crowe, P, et al.[2] The brake disc larger in diameter to provide
more brake surface, cooling area and of course braking
efficiency. The perimeter brakes can be very effective, much
more so than small disc brakes.

21. CONSTRUCTION AND WORKING
OF THE SETUP

22. V DISCUSSION
1. The Perimeter disk brake was designed using theoretical method
and analysis was done using static structural method on ANSYS
Workbench and the values of stress were found to be well below the
permissible level hence the perimeter disk brake is safe.
2.The Conventional disk brake was designed using theoretical
method and analysis was done using static structural method on
ANSYS Workbench and the values of stress were found to be well
below the permissible level hence the perimeter disk brake is safe.
3.Percentage slip in case of conventional disk brake system was
found to be greater than perimeter brake.

23. 4. The maximum energy absorbing capacity of the perimeter brake was found
to more.
5. The Perimeter disk brake thermal analysis was done using static steady
state method on ANSYS Workbench and the values of temperatures were
found to be well below the permissible level.
6. The Overall conclusion is that the perimeter brake performs better than the
conventional brake hereby increasing the safety of the vehicle the perimeter
disk brake is safe.

24. REFERENCES
[1] Shivankur Mittal, “Peripheral Disc Brake System and its Comparison with
Conventional Disc Brake System for use in Motorcycle Front Wheel An
Introduction to Signal Detection”, International Journal of Aerospace and
Mechanical Engineering, Volume 3 – No.4, August 2016.
[2]Crowe,P.2007,“Wilwood Stealth Perimeter Brake System”, viewed 10 July
2016, <http://thekneeslider.com/wilwood-stealth-perimeter-brake-system.
[3]Emanuele Toson, Brakko S.R.L.,― Disc Brake With The Calipez Reaction
Passing Through A Wheel Fixed Support Axle Preferably For Motorcycle Front
Wheels With A Peripheral Annular Disc”, Appl. No.2 437,505,May 9,1995.
[4]Li Jin , XuJianchang , LuoFang, “Research on Brake Noise of Air Disc Brake”,
Third International Conference on Measuring Technology and Mechatronics
Automation,2011.
[5]Heidrich, Lukas, Augsburg, Klaus, Albrecht, Rico, Eisele, Christian; Mäurer,
Peter;Stibbe, Thorald ,― Study Of Operational Behavior And Design Of Perimeter
Wheel Brakes For Active Corner Modules”, Ilmenau University of Technology,
GermanyEB2015-BAS-002.

25. Thank you!