Nandha.docx

DESIGN AND FABRICATION OF PNEUMATIC BUMPER AND BREAK ACTUATION BEFORE COLLISION A PROJECT REPORT Submitted by

V. AJITHKUMAR

(621215114004)

JITHIN THOMAS

(621215114019)

K. RAJENDRAPRASATH

(621215114035)

A. SIVA

(621215114042)

In partial fulfillment for the award of the degree Of

BACHELOR OF ENGINEERING in MECHANICAL ENGINEERING KING COLLEGE OF TECHNOLOGY NAMAKKAL

ANNA UNIVERSITY : CHENNAI 600 025 APRIL – 2019

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ANNA UNIVERSITY : CHENNAI 600 025 BONAFIDE CERTIFICATE Certified that this project report “FABRICATION OF PNEUMATIC BUMPER AND BRAKE ACTUATION BEFORE COLLISION” is the bonafide work of “ V.AJITHKUMAR(621215114004)” who carried out the project work under my supervision.

SIGNATURE

SIGNATURE

Mr. M.BHOOPATHI, M.Tech.,

Mr. M.VEERAMANI, M.E.,

HEAD OF THE DEPARTMENT,

SUPERVISOR,

Assistant Professor,

Assistant Professor,

Dept. of Mechanical Engineering,

Dept. of Mechanical Engineering,

King College of Technology,

King College of Technology,

Namakkal-637020.

Namakkal-637020.

Submitted for the viva-voce examination held on ……………….

Internal Examiner

External Examiner

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ACKNOWLEDGEMENT First and foremost we would like to express thanks to our beloved founder Mr.J.ILANGO,B.A.,B.L., Mrs.KALAILANGO,B.com,

and

our

beloved

chairman

and all the member of the management of

KING COLLEGE OF TECHNOLOGY for providing better working environments and educational facilities in a well sophisticated manner. We wish to convey our profound thanks to our beloved and Honorable Principal Dr.M.P. SUDHESH KUMAR, M.E., Ph.D., for forwarding us to do our project and offering adequate duration in completing our project work. We thank the almighty, whose blessings moved us towards each step of success. We thank Mr.M.BHOOPATHI, M.Tech., Honorable Head of the Department for his constructive suggestions & encouragement during our project. We record our deepest sense of gratitude and respect to our guide Mr.N.VEERAMANI, M.E., for their help and co-operation in leading our project work. And we express our sincere word of gratitude to our class counselor and staff members of the Department of Mechanical Engineering, King College of Technology. We are very grateful to all the staff members and non-teaching members, our families and classmate who directly or indirectly helped us to finish the project successfully we would like to take this opportunity to express our gratitude and to extend our best wishes for all who guided, inspired and motivated us during this project.

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ABSTRACT The technology of pneumatics plays a major role in the field of automation and modern machine shops and space robots. The aim is to design and develop a control system based intelligent electronically controlled automotive bumper activation and automatic braking system is called AUTOMATIC PNEUMATIC BUMPER AND BREAK ACTUATION BEFORE COLLISION. This project consists of IR transmitter and Receiver circuit, Control Unit, Pneumatic bumper system and pneumatic braking system. The IR sensor senses the obstacle. There is any obstacle closer to the vehicle (within 1 feet), the control signal is given to the bumper activation system and also pneumatic braking system simultaneously. The pneumatic bumper and braking system is used to product the man and vehicle. This bumper and braking activation system is only activated the vehicle speed above 20 km per hour. This vehicle speed is sensed by the IR sensor and this signal is given to the control unit and pneumatic bumper and braking activation system.

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CONTENTS CHAPTER

TITLE

PAGE. NO

ABSTRACT

iv

LIST OF FIGURE

vii

LIST OF TABLES

viii

1

INTRODUCTION

1

2

LITERATURE REVIEW

2

3

WORKING PRINCIPLE

6

4

MAJOR COMPONENTS

8

4.1 SHAFT

8

4.2 METAL STRIP

11

4.3 BALL BEARING

13

4.4 PNEUMATIC CYLINDER

16

4.5 SOLENOID VALVE

21

4.6 HOSE & CONNECTOR

23

4.7 AIR TANK

24

4.8 IR SENSOR

27

4.9 RELAY

33

4.10 WHEEL

34

v

5

METAL FRAME

43

5.1 MANUFACTURING PROCESS

44

5.1.1 SAWING

44

5.1.2 WELDING

46

5.1.3 DRILLING

47

6

ADVANTAGES & APPLICATIONS

48

7

MATERIALS & COST ESTIMATION

49

8

2D LAYOUT OF MODEL

52

9

CONCLUSION

53

10

REFERENCE

54

11

PHOTOGRAPHY

56

LIST OF FIGURES vi

FIG.NO

NAME OF THE FIGURE

PAGE NO

4.1

SHAFT

8

4.2

METAL STRIP

11

4.3

BALL BEARING

12

4.4.1

PNEUMATIC CYLINDER

16

4.4.2

DOUBLE ACTING CYLINDER

18

4.5.1

DIAGRAMMATIC SOLENOID VALVE

21

4.5.2

SOLENOID VALVE

22

4.6.1

HOSE COUPLING

23

4.6.2

CONNECTOR

23

4.7.1

TWO STAGE AIR COMPRESSOR

25

4.7.2

SINGLE STAGE AIR COMPRESSOR

26

4.8

IR SENSOR

28

4.9.1

RELAY

33

4.9.2

PIN DIAGRAM

34

4.10.1

WHEEL

35

4.10.2

CROSS SECTION OF TIRE

39

5.1.1

MILD STEEL BARS

43

5.1.2

SAWING CUTTING MACHINE

45

5.1.3

WELDING OPERATION

46

LIST OF TABLES

vii

TABLE NO

TABLE DESCRIPTION

PAGE NO

4.7

DETAILS OF BRAND AIR COMPRESSOR

27

7.1

MATERIALS USED

49

7.2

COST ESTIMATION

50

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