d esign and fabrication of a vehicle with inbuilt pneumatic … · 2018-05-06 · d esign and...
Post on 09-Jul-2020
8 Views
Preview:
TRANSCRIPT
DESIGN AND FABRICATION OF A VEHICLE WITH INBUILT PNEUMATIC JACK
C.JAGADEESH VIKRAM1, D.MOHAN KUMAR2,
Asst Professor1,2 ,Department of Automobile Engineering ,
BIST, BIHER, Bharath University,Chennai – 73.
jagadeeshvikram.auto@bharathuniv.ac.in.
ABSTRACT:
There are many safety hazards posed with manually
raising a vehicle to change a tire. Standard car
jacks pose a great safety hazard due to the physical
and time consuming involvement of the operator.
Aftermarket automatic hydraulic jacks though safer
still are hazardous as they have to be manually
placed under the vehicle and have limited use. A
pneumatic car jack that is permanently attached to
the under body of a vehicle will reduce and
eliminate many of these safety issues.
The pneumatic jack was designed based on the
relative weights of the customer requirements that
are given the most importance and the engineering
features with the highest relative importance in
order to ensure that customer needs are met. This
approach ensured that the car jack was designed
with the customer’s needs in sight and thus proved
to be a successful product.
INTRODUCTION
The standard vehicle jacks require the
operator to retrieve the jack from the trunk,
place it under the vehicle in the proper location,
and then manually rotate the screw thread in
order to lift the vehicle[1-5]. This process is time
consuming, physically demanding and poses
several safety hazards. Adverse weather
conditions can exacerbate the process and make
it a greater safety hazard. Those who are
physically weaker (women, senior citizens,
young drivers) may face great difficulties in
jacking a vehicle in case of an emergency
repair[6-9]. The purpose of this senior design
project is to counter the safety hazards and
physical demands related to using manual jacks
or aftermarket hydraulic jacks by designing a
jack system that is permanently attached to the
vehicle. This vehicle mounted jack system will
be automated so that operator input is kept to a
minimum and thus safety hazards can be
avoided[10-16].
DESCRIPTION OF COMPONENTS
Chassis
Chassis is a French term and was
initially used to denote the frame parts or Basic
Structure of the vehicle. It is the back bone of
the vehicle. A vehicle without body is called
Chassis. The components of the vehicle like
Power plant[17-21], Transmission System,
Axles, Wheels and Tyres, Suspension,
Controlling Systems like Braking, Steering etc.,
and also electrical system parts are mounted on
the Chassis frame. It is the main mounting for all
the components including the body. So it is also
called as Carrying Unit[22-29].
Motor
Most commonly used electrical drives
are: DC motors – shunt, series, compound and
permanent magnet.
Induction motors: squirrel cage, wound rotor
and linear.
Synchronous motors: wound field and
permanent magnet.
Classification of Electrical Drive
International Journal of Pure and Applied MathematicsVolume 119 No. 12 2018, 9901-9913ISSN: 1314-3395 (on-line version)url: http://www.ijpam.euSpecial Issue ijpam.eu
9901
DC drives: A dc motor speed can be controlled
by using a power converter. Here motor is
coupled with load[30-35].
AC drives: An AC motor speed can be
controlled by a power converter. Here motor is
coupled with load. The main purpose is to vary
the motor speed.
Principle of Operation
The basic principle of operation of d.c
motor is, “whenever a current Carrying
conductor placed in a magnetic field, the
conductor experiences a force tendingto move
it.” Refer the following Fig1.2 shows the types
of Motor.
Types of DC Motors
Fig: 1-Classification of motor
The classification of DC motors
is similar to that of the DC generators. The
classification is based on the connections of field
winding in relation to the armature[42-48]. The
types of DC motors are
1) Separately excited DC motor
2) Self-excited DC motor
o Series motor
o Shunt motor
o Compound motor
Pneumatic Systems
Pneumatics is a branch of mechanics
that deals with the mechanical properties of
gases. It works with the study of pressurized gas
that produces mechanical motion, and the
application of such gases to produce motion.
Systems based on pneumatics are found in
factories that deal with compressed air and inert
gases. Energy produced by pneumatic systems
can be more flexible, less costly, more reliable
and less dangerous than some actuators and
electric motors[36-41].
Fig: 2-.Pneumatic Systems
Pneumatic systems used extensively
in industry are commonly powered
by compressed air or compressed inert gases. A
centrally located and electrically
powered compressor powers cylinders, air
motors[49-53], and other pneumatic devices. A
pneumatic system controlled through manual or
automatic solenoid valves is selected when it
provides a lower cost, more flexible, or safer
alternative to electric motors and actuators. Most
industrial pneumatic applications use pressures
of about 80 to 100 pounds per square inch (550
to 690 kPa). Pneumatic systems generally have
International Journal of Pure and Applied Mathematics Special Issue
9902
long operating lives and require little
maintenance. Because gas is compressible,
equipment is less subject to shock damage. Gas
absorbs excessive force, whereas fluid in
hydraulics directly transfers force. Compressed
gas can be stored, so machines still run for a
while if electrical power is lost.
Components of Pneumatic System
Pneumatic technology deals with the
study of behavior and applications of
compressed air in our daily life in general and
manufacturing automation in particular.
Pneumatic systems use air as the medium which
is abundantly available and can be exhausted
into the atmosphere after completion of the
assigned task.
Basic Components of Pneumatic System
Important components of a pneumatic
system are given below
a) Air filters: These are used to filter out the
contaminants from the air.
b) Compressor: Compressed air is generated by
using air compressors. Air compressors are
either diesel or electrically operated. Based on
the requirement of compressed air, suitable
capacity compressors may be used.
c) Air cooler: During compression operation, air
temperature increases. Therefore coolers are
used to reduce the temperature of the
compressed air.
Fig:3 -.Basic Components of Pneumatic Systems
d) Dryer: The water vapor or moisture in the air
is separated from the air by using a dryer.
e) Control Valves: Control valves are used to
regulate, control and monitor for control of
direction flow, pressure etc.
f) Air Actuator: Air cylinders and motors are
used to obtain the required movements of
mechanical elements of pneumatic system.
Actuators
Actuators are output devices which
convert energy from pressurized hydraulic oil or
compressed air into the required type of action
or motion. In general, hydraulic or pneumatic
systems are used for gripping and/or moving
operations in industry. These operations are
carried out by using actuators.
Actuators can be classified into three types.
1. Linear actuators: These devices convert
hydraulic/pneumatic energy into linear
motion.
International Journal of Pure and Applied Mathematics Special Issue
9903
2. Rotary actuators: These devices convert
hydraulic/pneumatic energy into rotary
motion.
3. Actuators to operate flow control valves:
these are used to control the flow and
pressure of fluids such as gases, steam
or liquid.
Double Acting Cylinder
The main parts of a hydraulic double
acting cylinder are: piston, piston rod, cylinder
tube, and end caps. The piston rod is connected
to piston head and the other end extends out of
the cylinder. The piston divides the cylinder into
two chambers namely the rod end side and
piston end side. The seals prevent the leakage of
oil between these two chambers. The cylindrical
tube is fitted with end caps. The pressurized oil,
air enters the cylinder chamber through the ports
provided. In the rod end cover plate, a wiper seal
is provided to prevent the leakage of oil and
entry of the contaminants into the cylinder. The
combination of wiper seal, bearing and sealing
ring is called as cartridge assembly. The end
caps may be attached to the tube by threaded
connection, welded connection or tie rod
connection. The piston seal prevents metal to
metal contact and wear of piston head and the
tube. These seals are replaceable. End
cushioning is also provided to prevent the
impact with end caps.
Fig: 4-.Double Acting Cylinder
Types of Direction Control Valve
Fig: 5-.Types of Direction Control Valve
Actuation System of Valve
There are different types of actuation
system, which will make the valve to change the
position for changing the operating the
pneumatic cyclinder.
Fig: 6-.Actuation System of Valve
Gear
In spur gears, the teeth are straight and parallel
to the axis of the wheel. The gearing so formed
is called spur gearing. They are used to transmit
rotary motion between parallel shafts. This
gearing may be internal or external. External
gears rotate in opposite directions while internal
gears rotate in same direction.
International Journal of Pure and Applied Mathematics Special Issue
9904
Fig: 7-.Spur Gear
Rack
It is a type of linear actuator that
comprises a pair of gears which convert
rotational motion into linear motion. A circular
gear called "the pinion" engages teeth on a linear
"gear" bar called "the rack", rotational motion
applied to the pinion causes the rack to move
relative to the pinion, thereby translating the
rotational motion of the pinion into linear
motion.Here, we use the rack and pinion
arrangement to control the horizontal motion of
the welding.
Fig: 8-.Rack
Compressor
Compressed air energy storage (CAES)
is a way to store energy generated at one time
for use at another time using compressed air. At
utility scale, energy generated during periods of
low energy demand (off-peak) can be released to
meet higher demand (peak load) periods. Small
scale systems have long been used in such
applications as propulsion of mine locomotives.
Large scale applications must conserve the heat
energy associated with compressing air;
dissipating heat lowers the energy efficiency of
the storage system.
Fig: 9-.Compressor
Bearing
A bearing is a device to allow
constrained relative motion between two or
more parts, typically rotation or linear
movement. The bearings are used in variety of
machine elements to guide and allow the relative
motion between the parts with minimum
frictions and maximum accuracy.
Fig: 10 -.Bearings
WORKING CONCEPT
Fig: 11 -.Block Diagram for Pneumatic Jack
International Journal of Pure and Applied Mathematics Special Issue
9905
Parts of Diagram
1. Pneumatic cylinder
2. Wheels
3. Frame
4. Bumper
Working
As when the motor is ON, then the gear gets
rotated over the rack and we can fix the gear
either at the front end or at the rear end. Then by
passing the compressed air we can able to lift the
chassis for servicing. That here the pneumatic
cylinder and the jack is fitted at the same plane.
Then they are perfect to use four wheelers.
Difference between Proposed and Existing
Model
EXISTING MODEL PROPOSED MODEL
They had using by
manual painting
system.
We are using rack
and pinion arrangement
mechanism.
Manual work will be
more.
We have been
reducing the manual
work.
METHODOLOGY
Drilling
Drilling is the process of
removing the materials with the help of drill for
making a hole of circular cross section in solid
materials. Drill bit is a multipoint cutting tool, it
is in motion along the perpendicular axis to the
work piece material and the workpiece is
stationary. Refer the following Fig3.6 shows the
Drilling Operation.
Welding
The process of joining the two
workpiece materials by using the electric arc is
known as arc welding. An electric current is
used to strike an arc between the base material
and the consumable electrode rod or stick. The
electrode rod is made of a material that is
compatible with the base material being welded
and covered with a flux that gives off the vapors
that serves as a shielding gas and provides a
layer of slag, both of which protect the weld area
from atmosphere.
Plain Turning
The process of removing the
material from workpiece to reduce the
dimension of it is known as plain turning.
Machining can be performed by using lathe, the
workpiece is placed in the chuck and tool is
placed at the tool holder. Then the workpiece
can be machined to the required dimension.
Refer the following Fig3.8 shows the Plain
Turning operation.
Grinding
A grinding machine, often shortened
to grinder, is any of various power
tools or machine tools used for grinding, which
is a type of machining using an abrasive
wheel as the cutting tool. Each grain of abrasive
on the wheel's surface cuts a small chip from the
work piece via shear deformation. Grinding is
used to finish work pieces that must show high
surface quality (e.g., low surface roughness) and
high accuracy of shape and dimension.
DESIGNCALCULATIONS
Calculation of Gear
Module m = 1.5
Outer diameter D = 70 mm
Module (m) = Outer diameter (D )
(Z+2)
1.5 = 70
Z+2
Z = 49
International Journal of Pure and Applied Mathematics Special Issue
9906
Pitch circle diameter:
P.C.D = m x Z
= 1.5 x 49= 73.5 mm.
Circular pitch:
PC = 𝜋 x 𝑚
= π x 1.5
PC = 4.71
Teeth depth:
H = Z x m
2 [1 + 2
𝑍- cos (90
Z) ]
= 49 x 1.5
2 [1 + 2
49- cos (90
49) ]
= 36.75 [1 + 0.04 – 0.99]
H = 1.837 mm
Teeth thickness:
B = Z x m x sin ( 90
𝑍) =
49 x 1.5 x sin ( 90
49 )
= 49 x 1.5 x 0.03
B = 2.35 mm.
Addendum circle:
Da= m (1 + Z)
= 1.5 (1 + 49)
Da = 75 mm
Dedendum circle:
Db = D x cos α
= 70 x cos 20̊
Db = 65.77mm
Diametrical pitch:
Pd = 𝑍
𝐷
= 49
70
= 0.7 tooth/mm
Cone distance:
R = P .C .D
8
= 73.5
8
= 9.18 mm
Fillet radius:
r = 𝑃c
8
= 4.71
8 = 0.58
mm
4.1.2 CALCULATION OF BEARING
Diameter of bearing (D) = 60 mm
Load on bearing (w) = 5 N
Speed of bearing = 90 rpm
Length of bearing:
From PSG Data book Pg no: 7.31 for motor
L
D = 1.5
L = 1.5 x 60
L = 90 mm
Pressure developed:
P = w
L x D
= 5
90 x 60
= 0.9 x 10-3 N/mm
2
Selection of lubricating oil:
From PSG Data book Pg no: 7.31
(Z n
P)min = 2844.5
International Journal of Pure and Applied Mathematics Special Issue
9907
= 2844 .5 𝑥 0.9 𝑥 10−3
90
Zmin = 2.92
From 7.41 for 4centipoise and 90º
Celsius SAE 10 oil will be selected.
Calculation of coefficient of Friction:
µ= 33.25
1010 x Z n
P x
D
C + K
Where C = 150 x 10-3 from PSG Data
book Pg no: 7.32
C = 150 x 10-3
D
C =
60
0.15
= 400
Therefore
µ = (33.25
1010 )(10000 x 90
0.9)x400+0.002
= 1.33
Heating Calculation:
Hg = µ w v
v = 𝜋 𝐷 𝑛
60 =
π x 0.09 x 90
60 v
= 0.42 m/s
Hg = 1.33 x 5 x 0.42
Hg = 2.82 w
Diameter of bearing:
Db = D + C
= 60 + 0.15
= 60.15 mm
4.2 DESIGN
The 3d modeling is done for its components and
assembled on CATIA and enclosed below
ASSSEMBLY MODEL
Fig: 12-. Pneumatic Jack-Assembly Model
CONCLUSION
Thus, by given above construction and
working, the research work is done successfully.
The design is done on Catia software. The
working model will be finished fully. Hence this
research work beats hydraulic jack and improves
its efficiency. This reduces human effort.
The air is required for pneumatics and it
is available enormous level in atmosphere. To
control the system, only ON and OFF are used
and the system consists only of standard
cylinders and other components, making it
simpler than hydraulics. As our jack is inbuilt
the work fatigue is less as well as cost is also
less.
REFERENCES
1. Ramamoorthy, R., Kanagasabai,
V., Kausalya, R., Impact of
celebrities' image on brand,
International Journal of Pure and
Applied Mathematics, V-116, I-18
Special Issue, PP-251-253, 2017
2. Ramamoorthy, R., Kanagasabai,
V., Vignesh, M., Quality
International Journal of Pure and Applied Mathematics Special Issue
9908
assurance in operation theatre
withreference to fortis malar
hospital, International Journal of
Pure and Applied Mathematics,
V-116, I-14 Special Issue, PP-87-
93, 2017
3. Ramya, N., Arthy, J., Honey
comb graphs and its energy,
International Journal of Pure and
Applied Mathematics, V-116, I-18
Special Issue, PP-83-86, 2017
4. Ramya, N., Jagadeeswari, P.,
Proper coloring of regular graphs,
International Journal of Pure and
Applied Mathematics, V-116, I-16
Special Issue, PP-531-533, 2017
5. Ramya, N., Karunagaran, K.,
Proper, star and acyclic coloring
of some graphs, International
Journal of Pure and Applied
Mathematics, V-116, I-16 Special
Issue, PP-43-44, 2017
6. Ramya, N., Muthukumar, M., On
coloring of 4-regular graphs,
International Journal of Pure and
Applied Mathematics, V-116, I-16
Special Issue, PP-491-494, 2017
7. Ramya, N., Muthukumar, M., On
star and acyclic coloring of
graphs, International Journal of
Pure and Applied Mathematics,
V-116, I-16 Special Issue, PP-
467-469, 2017
8. Ramya, N., Pavi, J., Coloring of
book and gear graphs,
International Journal of Pure and
Applied Mathematics, V-116, I-17
Special Issue, PP-401-402, 2017
9. Ramya, P., Hameed Hussain, J.,
Alteration framework for
integrating quality of service in
internet real-time network,
International Journal of Pure and
Applied Mathematics, V-116, I-8
Special Issue, PP-57-61, 2017
10. Ramya, P., Sriram, M., Tweet
sarcasm: Peep, International
Journal of Pure and Applied
Mathematics, V-116, I-10 Special
Issue, PP-231-235, 2017
11. Sabarish, R., Meenakshi, C.M.,
Comparision of beryllium and CI
connecting rod using ansys,
International Journal of Pure and
Applied Mathematics, V-116, I-17
Special Issue, PP-127-132, 2017
12. Sabarish, R., Rakesh, N.L.,
Outcome of inserts for enhancing
the heat exchangers, International
Journal of Pure and Applied
Mathematics, V-116, I-17 Special
Issue, PP-419-422, 2017
13. Sangeetha, M., Gokul, N., Aruls,
S., Estimator for control logic in
high level synthesis, International
Journal of Pure and Applied
Mathematics, V-116, I-20 Special
Issue, PP-425-428, 2017
14. Sangeetha, M., Gokul, N., Aruls,
S., Image steganography using a
curvelet transformation,
International Journal of Pure and
Applied Mathematics, V-116, I-20
Special Issue, PP-417-422, 2017
15. Saraswathi, P., Srinivasan, V.,
Peter, M., Research on financial
supply chain from view of
stability, International Journal of
Pure and Applied Mathematics,
V-116, I-17 Special Issue, PP-
211-213, 2017
16. Saravana Kumar, A., Hameed
Hussain, J., Expanding the pass
percentage in semester
examination, International Journal
of Pure and Applied Mathematics,
International Journal of Pure and Applied Mathematics Special Issue
9909
V-116, I-15 Special Issue, PP-45-
48, 2017
17. Saravana, S., Arulselvi, S.,
AdaBoost SVM based brain
tumour image segmentation and
classification, International
Journal of Pure and Applied
Mathematics, V-116, I-20 Special
Issue, PP-399-403, 2017
18. Saravana, S., Arulselvi, S.,
Dynamic power management
monitoring and controlling system
using wireless sensor network,
International Journal of Pure and
Applied Mathematics, V-116, I-20
Special Issue, PP-405-408, 2017
19. Saravana, S., Arulselvi, S.,
Clustered morphic algorithm
based medical image analysis,
International Journal of Pure and
Applied Mathematics, V-116, I-20
Special Issue, PP-411-415, 2017
20. Saravana, S., Arulselvi, S.,
Networks, International Journal of
Pure and Applied Mathematics,
V-116, I-20 Special Issue, PP-
393-396, 2017
21. Saritha, B., Chockalingam, M.P.,
Adsorptive removal of heavy
metal chromium from aqueous
medium using modified natural
adsorbent, International Journal of
Civil Engineering and
Technology, V-8, I-8, PP-1382-
1387, 2017
22. Saritha, B., Chockalingam, M.P.,
Adsorptive removal of brilliant
green dye by modified coconut
shell adsorbent, International
Journal of Pure and Applied
Mathematics, V-116, I-13 Special
Issue, PP-211-215, 2017
23. Saritha, B., Chockalingam, M.P.,
Photodegradation of eriochrome
black-T dye from aqueous
medium by photocatalysis,
International Journal of Pure and
Applied Mathematics, V-116, I-13
Special Issue, PP-183-187, 2017
24. Saritha, B., Chockalingam, M.P.,
Photodradation of malachite green
DYE using
TIO<inf>2</inf>/activated carbon
composite, International Journal
of Civil Engineering and
Technology, V-8, I-8, PP-156-
163, 2017
25. Saritha, B., Chockalingam, M.P.,
Synthesis of photocatalytic
composite Fe-C/TiO2 for
degradation of malachite green
dye from aqueous medium,
International Journal of Pure and
Applied Mathematics, V-116, I-13
Special Issue, PP-177-181, 2017
26. Saritha, B., Chockalingam, M.P.,
Removal of heavy X`X`l from
aqueous medium using modified
natural adsorbent, International
Journal of Pure and Applied
Mathematics, V-116, I-13 Special
Issue, PP-205-210, 2017
27. Saritha, B., Chockalingam, M.P.,
Degradation of malachite green
dye using a semiconductor
composite, International Journal
of Pure and Applied Mathematics,
V-116, I-13 Special Issue, PP-
195-199, 2017
28. Sartiha, B., Chockalingam, M.P.,
Photocatalytic
decolourisationoftextileindustryw
astewaterby TiO2, International
Journal of Pure and Applied
International Journal of Pure and Applied Mathematics Special Issue
9910
Mathematics, V-116, I-18 Special
Issue, PP-221-224, 2017
29. Sartiha, B., Chockalingam, M.P.,
Study on photocatalytic
degradation of Crystal Violet dye
using a semiconductor,
International Journal of Pure and
Applied Mathematics, V-116, I-18
Special Issue, PP-209-212, 2017
30. Shanthi, E., Nalini, C., Rama, A.,
The effect of highly-available
epistemologies on hardware and
architecture, International Journal
of Pharmacy and Technology, V-
8, I-3, PP-17082-17086, 2016
31. Shanthi, E., Nalini, C., Rama, A.,
Drith: Autonomous,random
communication, International
Journal of Pharmacy and
Technology, V-8, I-3, PP-17002-
17006, 2016
32. Shanthi, E., Nalini, C., Rama, A.,
A case for replication,
International Journal of Pharmacy
and Technology, V-8, I-3, PP-
17234-17238, 2016
33. Shanthi, E., Nalini, C., Rama, A.,
Elve: A methodology for the
emulation of robots, International
Journal of Pharmacy and
Technology, V-8, I-3, PP-17182-
17187, 2016
34. Shanthi, E., Nalini, C., Rama, A.,
Autonomous epistemologies for
802.11 mesh networks,
International Journal of Pharmacy
and Technology, V-8, I-3, PP-
17087-17093, 2016
35. Sharavanan, R., Golden Renjith,
R.J., Design and analysis of fuel
flow in bend pipes, International
Journal of Pure and Applied
Mathematics, V-116, I-15 Special
Issue, PP-59-64, 2017
36. Sharavanan, R., Jose Ananth
Vino, V., Emission analysis of C.I
engine run by diesel,sunflower
oil,2 ethyl hexyl nitrate blends,
International Journal of Pure and
Applied Mathematics, V-116, I-14
Special Issue, PP-403-408, 2017
37. Sharavanan, R., Sabarish, R.,
Design of built-in hydraulic jack
for light motor vehicles,
International Journal of Pure and
Applied Mathematics, V-116, I-17
Special Issue, PP-457-460, 2017
38. Sharavanan, R., Sabarish, R.,
Design and fabrication of aqua
silencer using charcoal and lime
stone, International Journal of
Pure and Applied Mathematics,
V-116, I-14 Special Issue, PP-
513-516, 2017
39. Sharmila, G., Thooyamani, K.P.,
Kausalya, R., A schoolwork on
customer relationship
management with special
reference to domain 2 host,
International Journal of Pure and
Applied Mathematics, V-116, I-20
Special Issue, PP-199-203, 2017
40. Sharmila, S., Jeyanthi Rebecca,
L., Anbuselvi, S., Kowsalya, E.,
Kripanand, N.R., Tanty, D.S.,
Choudhary, P., SwathyPriya, L.,
GC-MS analysis of biofuel
extracted from marine algae, Der
Pharmacia Lettre, V-8, I-3, PP-
204-214, 2016
41. Sidharth Raj, R.S., Sangeetha, M.,
Data embedding method using
adaptive pixel pair matching
method, International Journal of
Pure and Applied Mathematics,
International Journal of Pure and Applied Mathematics Special Issue
9911
V-116, I-15 Special Issue, PP-
417-421, 2017
42. Sidharth Raj, R.S., Sangeetha, M.,
Android based industrial fault
monitoring, International Journal
of Pure and Applied Mathematics,
V-116, I-15 Special Issue, PP-
423-427, 2017
43. Sidharth Raj, R.S., Sangeetha, M.,
Mobile robot system control
through an brain computer
interface, International Journal of
Pure and Applied Mathematics,
V-116, I-15 Special Issue, PP-
413-415, 2017
44. Sivaraman, K., Sundarraj, B.,
Decisive lesion detection in
digital fundus image, International
Journal of Pure and Applied
Mathematics, V-116, I-10 Special
Issue, PP-161-164, 2017
45. Sridhar, J., Sriram, M., Cloud
privacy preserving for dynamic
groups, International Journal of
Pure and Applied Mathematics,
V-116, I-8 Special Issue, PP-117-
120, 2017
46. 1)P.S.Borkar,S.V.Sontakke,R.R.Dor
we,A.B.Ganorkar,S.P.Lokhande
“Design and fabrication of pneumatic
operated jack for four
wheelers”,volume 3,ISSN
(online):2321-0613@ 03/2015.
47. 2)S.Sathiyaraj, V.Selvakumar.
“Design and fabrication of pneumatic
jack for automobile.” International
Conference on Information
Engineering, Management and
Security (2015): 272-281.
48. 3)Tweng-Huang Wang, “Automatic
pneumatic-Hydraulic Jack”, United
States Patent, Patent number-
4,523,743, June 1985.
49. 4)P. S. Rana, P. H. Belge, “Integrated
Automated Jacks for 4- wheelers”,
European Journal of Applied
Engineering and Scientific Research,
2012, 1 (4):167-172, ISSN: 2278-
0041.
50. 5) P. S. Rana, P. H. Belge,
“Integrated Automated Jacks for 4-
wheelers”, European Journal of
Applied Engineering and Scientific
Research, 2012, 1 (4):167-172,
ISSN: 2278-0041
.
International Journal of Pure and Applied Mathematics Special Issue
9912
9913
9914
top related