The document discusses the design and analysis of a composite leaf spring. It begins with an abstract that outlines replacing steel leaf springs with composite materials to reduce weight. It then provides sections on leaf springs, composite materials, literature reviews on previous composite leaf spring research, and the project overview which involves designing leaf springs in CATIA and analyzing them in ANSYS. The document provides details on the material properties, design calculations, and modeling and analysis procedures.
DESIGN AND ANALYSIS OF LEAF SPRING BY USING COMPOSITE MATERIAL FOR LIGHT VEHI...IAEME Publication
Reducing weight while increasing or maintaining strength of products is getting to be highly important research issue in this modern world. Composite materials are one of the material families which are attracting researchers and being solutions of such issue. In this paper we describe design and analysis of composite leaf spring. For this purpose, a rear leaf spring for MAHINDRA “MODEL-COMMANDER 650 DI” is considered.
This Presentation Describes the Base Study about different Mechanical Drives and their selection parameters to use in Industry. it will also clear the idea behind selecting the mechanical drives only instead of going for other types of drives.
DESIGN AND ANALYSIS OF LEAF SPRING BY USING COMPOSITE MATERIAL FOR LIGHT VEHI...IAEME Publication
Reducing weight while increasing or maintaining strength of products is getting to be highly important research issue in this modern world. Composite materials are one of the material families which are attracting researchers and being solutions of such issue. In this paper we describe design and analysis of composite leaf spring. For this purpose, a rear leaf spring for MAHINDRA “MODEL-COMMANDER 650 DI” is considered.
This Presentation Describes the Base Study about different Mechanical Drives and their selection parameters to use in Industry. it will also clear the idea behind selecting the mechanical drives only instead of going for other types of drives.
simple chassis design considerations used for the purpose of presentations in colleges as well as in any industries. i also gives the classification of chassis.
Crankshaft Manufacturing Process sequence Omar Amen
This presentation slides Discusses how to manufacture crankshaft
Slides contains:
- Introduction to crankshaft ( what is the crankshaft ).
- Main parts of crankshaft.
- Types of crankshaft.
- Design of crankshaft.
- Finite element analysis for crankshaft ( Structure Analysis & Thermal Analysis ).
- Material selection ( select the suitable materials for manufacture crankshaft and suitable percentage of alloying elements in crankshaft according to required mechanical properties ).
- Manufacturing process sequence ( Forging steps & Machining steps ).
- field research for crankshaft manufacturing (Nallicheri, 1991, contains conditions of manufacturing , Cost Analysis according to factors, and Cost Analysis according to process ).
Design and Optimization of Knuckle Joint Using TrussesAbdul Farhan
A knuckle joint is mainly used to connect two rods under tensile load. These joints are used for different types of connections e.g. tie rods, tension links in bridge structure. In this, one of the rods has an eye at the rod end and the other one is forked with eyes at both the legs. Present paper emphasizes on optimization of Knuckle joint design using Truss design, in this study, modelling and analysis of a knuckle joint is performed by using Finite Element Method. The commercial finite element package ANSYS version 18 is used for the solution of the problem. The modelling of both existing solid and modified truss design is done using 3D software Solidworks 2015.The simulation part is carried out using the Analysis software, ANSYS. With the Boundary constrains and the tensile load applied, the knuckle joint is analysed and the values are tabulated. The truss design was successful as the strength of knuckle joint improved in Model 1 by 61.31%, Deformation in Model 3 decreased by 92.18% and also the weight reduction was 3.43% in Model 7.
simple chassis design considerations used for the purpose of presentations in colleges as well as in any industries. i also gives the classification of chassis.
Crankshaft Manufacturing Process sequence Omar Amen
This presentation slides Discusses how to manufacture crankshaft
Slides contains:
- Introduction to crankshaft ( what is the crankshaft ).
- Main parts of crankshaft.
- Types of crankshaft.
- Design of crankshaft.
- Finite element analysis for crankshaft ( Structure Analysis & Thermal Analysis ).
- Material selection ( select the suitable materials for manufacture crankshaft and suitable percentage of alloying elements in crankshaft according to required mechanical properties ).
- Manufacturing process sequence ( Forging steps & Machining steps ).
- field research for crankshaft manufacturing (Nallicheri, 1991, contains conditions of manufacturing , Cost Analysis according to factors, and Cost Analysis according to process ).
Design and Optimization of Knuckle Joint Using TrussesAbdul Farhan
A knuckle joint is mainly used to connect two rods under tensile load. These joints are used for different types of connections e.g. tie rods, tension links in bridge structure. In this, one of the rods has an eye at the rod end and the other one is forked with eyes at both the legs. Present paper emphasizes on optimization of Knuckle joint design using Truss design, in this study, modelling and analysis of a knuckle joint is performed by using Finite Element Method. The commercial finite element package ANSYS version 18 is used for the solution of the problem. The modelling of both existing solid and modified truss design is done using 3D software Solidworks 2015.The simulation part is carried out using the Analysis software, ANSYS. With the Boundary constrains and the tensile load applied, the knuckle joint is analysed and the values are tabulated. The truss design was successful as the strength of knuckle joint improved in Model 1 by 61.31%, Deformation in Model 3 decreased by 92.18% and also the weight reduction was 3.43% in Model 7.
Design & Analysis of Composite Propeller ShaftIJSRD
A Propeller Shaft is the connection between the transmission and the rear axle of the vehicles. The function of propeller shaft is to transmit the power from engine to the rear wheel in case of front engine drive vehicle. High quality steel (Steel SM45) is most commonly used material. The steel drive shaft consists of three universal joints, a center supporting bearing and a bracket, which increase the total weight of a system. The Power transmission can be improved through reducing its weight. According to previous researches many have done the various experiments to reduce the weight by changing the ply thickness, fiber orientation angle, number of plies but until now no one has studied the effect on the properties of the composite formed by changing volume fraction of carbon fiber & epoxy resin. The focus of this work will be to investigate either replacing steel structure of propeller shaft by composite structure such as carbon fiber & epoxy resin to minimize the cost and weight, also to check the suitability of composite structures by experimental method and software testing.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Numerical Simulation of Knuckle Joint Using Finite Element Method: A New Appr...dbpublications
For the past few decades, there has
been a rapidprogress in the field ofmaterial science
which has resulted in the reduction of cost and
weight of materials. This modified systems
developed by incorporating various advanced and
smarter materialshas led to areduction in number of
accidents andtherefore, the safety has increased,
which again has been an utmost concern for any
industry in modern times.
The present work is an attempt to provide
the readers with a comparative overview in the
context of conventional and advanced materials
focusing on a mechanical joint, i.e. the Knuckle
joint. A Knuckle joint finds its extensive
application for connecting two rods subjected to
normal tensile load and requiring flexibility in its
angular movements. Here, we are suggesting a
modification over theconventionally used material,
such as Aluminium alloythat is widely used for
manufacturing the Knuckle joints.The results
obtained from our study approves that the use of
composite material not only decreases the weight
of the material but it also improves the life of the
component as the composite material shows less
deformation in comparison to the conventional one.
In the present work, CATIA V5R18 has been used
for modellingthe 3D geometry of Knuckle Joint
and ANSYS (Workbench 16.2) is been used for
finite element analysis of the same with
the conventional and composites materials
respectively. Composite analysis is based on Rule
of mixtures.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
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Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
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Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
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Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
2. TOPICS:
• Abstract
• Introduction
• Literature Review
• Composite Materials, FRP
• Composite Leaf Springs
• Problem Definition and Methodology
• Project Overview
• Material Properties
• Design Calculations
• Modelling
• Analysis
• Results
• Merits and Demerits
• Future Scope
• References
3. ABSTRACT:
In recent year automobile industries are mostly concentrating on
weight reduction and in improving the riding quality . To reduce
vehicle weight, three technique shave been studied rationalizing
the body structure , utilizing light weight materials for parts and
decreasing the size of the vehicles. In this approach by introducing composite
materials into automobile industries, which is having low
cost, high strength to weight ratio and excellent corrosive resistance
can fulfill the requirement. The suspension leaf spring is one of the
potential entities for weight reduction in automobiles as it results in
large unstrung mass. The introduction of Fiber Reinforced Plastics (FRP)
is used to reduce the weight of the product without any reduction on
load carrying capacity and spring rate. As the materials high strain
energy storage capacity and high strength-to-weight ratio compared
to steel, multi-leaf springs are being replaced by mono-leaf FRP spring .
FRP springs also have excellent fatigue resistance and durability.
4. INTRODUCTION:
LEAF SPRING:
• A leaf spring is a simple type of suspension spring commonly used in
heavy duty vehicles.
• Leaf springs also known as flat springs are made as springs made of
flat plates.
• Leaf springs are designed two ways multi – leaf and mono – leaf.
5. TYPES OF SPRING LEAVES:
• Double eye
• Slipper – open end eye
• Slipper – hook end
• Slipper – flat end
• Slipper – radius end
6. Double Eye Leaf pring Slipper – open end eye
Slipper – hook end leaf spring Slipper – flat end Leaf Spring
7. COMPOSITE MATERIALS, FRP:
• A composite is usually made up of at least two materials out of which one is
the binding material, also called matrix and the other is the reinforcement
material .( fiber Kevlar and whiskers) . The advantage
of composite materials over conventional materials stem largely from
their higher specific strength, stiffness, strong load carrying capacity
fatigue characteristics, which enables structural design to be more
• Fiber-reinforced composite materials consist of ‘fibers’ of high strength and
modulus embedded in or bonded to a ‘matrix’ with distinct interface
(boundary) between them. In this form, both fibers and matrix retain their
physical and chemical identities, yet they produce a combination of
properties that cannot be achieved with either of the constituents acting
alone
9. Literature Review:
• Priyanka Kothari " Leaf springs are one of the oldest suspension components
they are still frequently used, especially in commercial vehicles. The literature
has indicated a growing interest in the replacement of steel spring with
composite leaf spring. The suspension system in a vehicle significantly affects
the behavior of vehicle, i.e vibration characteristics including ride comfort,
stability etc. Leaf springs are commonly used in the vehicle suspension
system and are subjected to millions of varying stress cycles leading
to fatigue failure. A lot of research has been done for improving the
performance of leaf spring
• Erol Sancaktar (1999), in his work described the design and manufacture of a
functional composite leaf spring for solar powered light vehicle. The main
objective of this work was to provide and understanding of the manufacture,
use and capabilities of composite leaf spring. The material selected for the
fabrication of the initial design leaves consisted of a full thickness of
unidirectional E-glass fibers with two layers of bi-directional fabric on the outer
layers embedded in a vinyl ester resin matrix. The bi-directional fabric used to
prevent leaf deformation and subsequent failure in bending about its
longitudinal axis it was selected due to overall weight reduction of the vehicle
primarily considered
10. PROBLEM DEFINITION AND
METHODOLOGY
• There is currently much interest in deformation analysis of multiple
elastic-plastic bodies in contact. One such case is the design and
analysis of the automobile leaf springs, In order to accurately model
the deformations and vibrations of the leaf springs, nonlinear finite-
element procedures are need to be employed, with the advent of
development of the contact analysis, it is appropriate to apply the
contact analysis technique in the analysis of the leaf springs . Thus the
effect of the system with contact has to be studied. Methods for
modelling the contact and friction between the leaves of the spring
are to be developed.
11. PROJECT OVERVIEW:
• Various Design methods adopted leaf springs Regular design,3 layers, 5
Layers using CATIA software. Design of leaf spring completed based on ISO
standard drawing sheet.
• Stresses, deformations, strain, shear stress are calculated for four different
materials Steel, E GLASS EPOXY, GRAPHITE EPOXY, HYBRID
MATERIAL(EGLASS/GRAPHTIE) of leaf spring
• Leaf spring design imported in Ansys software for analysis purpose. Structural
analysis
• Perform the static analysis
• Consider the 7125N applied on leaf spring because of this working loading
conditions
• From these results, concluded the suitable leaf springs proposed under
conditions with 4 materials
13. DESIGN CALCULATIONS:
Step (1): Material of leaf spring :
Material selected steel : 50 Cr 1 V 23
Composition of material :
0.45 % C
0.1-0.3 % Si
0.6-0.9% Mn
0.9-1.2% Cr
Step (2): Basic data of Ambassador leaf spring :
• Total length of the spring (Eye to Eye) = 1250 mm
• No. of full length leaves (nf) = 02
• No. of graduated leaves (ng) = 04
• Thickness of leaf ( t ) = 7 mm
14. • Width of the leaf spring ( b ) = 60 mm
• Total load = 2850 Kg
• BHN = 500 – 580 HB with hardened and tempered
Step (3): Basic requirement of load :
• Maximum capacity = 2850 Kg
= 2850 x 10
= 28500 N
• Ambassador is equipped with 4 nos. of semi elliptical leaf spring,
So load acting on the leaf spring assembly = 28500/4
= 7125 N
Step (4): Calculation of the load and effective length of leaf spring :
• Consider the leaf spring is cantilever beam. So the load acting on the each assembly
of the leaf spring is acted on the two ends of the leaf spring. Load acted on the leaf
spring is divided by the two because of consideration of the cantilever beam
2 W = 7125 N
W = 7125/2
W = 3562.5 N
15. • For support and clamping of the leaf spring the “U” bolt is use and the distance between
the “U” bolt is 110 mm. This is considered as an unbent portion of the leaf spring.
Ineffective length of the leaf spring is as under :
l = 110.00 mm
Effective Length of the spring,
2 × L = 2 × L1 − 1
2 × L = 1250 −
2
3
(110)
2 × L = 1176.67
L =
1176.67
2
L = 588.34
16. Step (5): Calculation of the pin of the leaf spring is as under :
Allowable bearing pressure of the eye [20] ( pb ) = 8 N/ mm2
Take length of the eye (l1 ) = 60 mm.
Load acting on the eye are as under:
𝑊 = 𝑙 × 𝑙1 × 𝑝𝑏
𝑑 =
𝑊
𝑙1 × 𝑝𝑏
𝑑 =
3562.5
60 × 8
𝑑 = 7.42𝑚𝑚
𝑑 = 8𝑚𝑚
Considering factor of safety is 2.
Calculation of the bending moment of the pin is as under :
Length of the pin = Length of the eye + (2 Clearance)
17. (Take the clearance 2.50 mm per side [20])
𝑙𝑝 = 60 + 2 × 2.50
𝑙𝑝 = 65𝑚𝑚
Step(6): Calculations of the length of leaves are as under :
Ineffective length of the leaf spring (l) = 110 mm
Length of the leaf spring is as under:
Length of the smallest leaf =
Effective length
n−1
+
2
3
(ineffective length)
= (
2×L
n−1
× 1) +
2
3
(ineffective length)
= (
2 × 588.34
6 − 1
× 1) + 73.33
= 308.66mm
19. • Length of the 4th leaf = (
2×L
n−1
× 4) +
2
3
(ineffectiv length)
= (
2 × 588.34
6 − 1
× 4) + 73.33
= 1014.67mm
• Length of the 5th leaf
2×L
n−1
× 5) +
2
3
(ineffectiv length)
= (
2 × 588.34
6 − 1
× 5) + 73.33
= 1250mm
But 5th and 6th leaves are full length leaves and 6th leaf is known as a master leaf.
Length of the master leaf calculated is as under:
Length of master leaf = 2 × L1 × π d + t
= 1250 + π 30 + 7 × 2
= 1482.48
20. Step (8): Calculation of radius is as under :
R = Radius to which the leaves should be initially bent
y = Camber of the spring
y(2 × R − y) = (L1)2
176.26(2 × R − 176.26) = (625)2
R = 1196.22mm
21. Modelling Using CATIA:
• CATIA (Computer Aided Three-Dimensional Interactive Application) started
as an in-house development in 1977 by French aircraft manufacturer Avions
Marcel Dassault, at that time customer of the CAD/CAM CAD software to
develop Dassault's Mirage fighter jet.
• CATIA provides a wide range of applications for tooling design, for both
generic tooling and mold & die. A rich catalog of industry-standard
components is provided to automate tooling definition. Specific tools are
also provided to address the needs of mold tool injection designers.
22. DESIGN PROCEDURE IN CATIA
• Create the two circles(eye) a in sketcher workbench as per above
dimensions 625mm from absolute axis after create the leaf circle
create the offset distance is 6mm after go to the part design work
bench apply pad 60mm width as shown below figure.
EACH LEAF THICK NESS IS 6MM
23.
24. ANALYSIS PROCEDURE IN ANSYS:
• Designed component in catia workbench after imported into
ansys workbench now select the steady state thermal analysis .
• 1.ENGINEEERING MATERIALS (MATERIAL PROPERTIES).
• 2.CREATE OR IMPORT GEOMENTRY.
• 3.MODEL(APPLY MESHING).
• 4.SET UP(BOUNDARY CONDITIONS)
• 5.SOLUTION
• 6.RESULTS
25. STATIC STRUCTURAL ANALYSIS:
• The static structural analysis calculates the stresses,
displacements, shear stress and forces in structures caused
by a load that does not induce significant inertia and
damping effects. Steady loading and response conditions
are assumed; that the loads and the structure’s response
are assumed to change slowly with respect to time. A static
structural load can be performed using the ANSYS
WORKBENCH solver. The types of loading that can be
applied in a static analysis include:
27. Here consider the 3 designs regular method and 3 layers and 5 layer s
with various materials they are E glass epoxy , graphite epoxy, steel,
hybrid ( E glass and graphite epoxy) material
Boundary condition fixed at two hinges and apply load 7125 N in
centre of the leaf spring as shown below figues
MESH AND BOUNDARY CONDITIONS
MESHING
NODES 3597 ;ELEMENTS 350
BOUNDARY CONDITIONS
28. RESULT AND DISCUSSION
STATIC ANALYSIS RESULTS:
This analysis is performed to find Structural parameters such as Stresses,
Deformation, Shear stress, strain Here we observed results on three
materials namely E glass epoxy , graphite epoxy, steel.
50Cr1V23 Steel Material:
Von-misses stress Total deformation
29. Strain of 50Cr1V23 Steel
Material
Shear stress of Graphite
epoxy Material
30. E GLASS EPOXY MATERIAL
Strain of E GLASS e epoxy Material
Shear stress of E GLASS e epoxy Material
Total deformation of E GLASS epoxy Material
Von-misses stress of E GLASS epoxy
Material
32. RESULT AND DISCUSSION
This graph shows the different maximum stress values in different
materials, e glass epoxy 42.793 Mpa material has least stress value
compared to another materials as shown in the graph.
33. This graph shows the Different maximum Deformation values in
different materials, e glass epoxy 0.193mm material has least
deformation value compared to another materials as shown in the
graph
Deformation Graph
34. SHEAR STRESS GRAPH:
This graph shows the Different maximum Shear stress values in
different materials, graphite epoxy 0.83 Mpa material has Shear
value lesser compared to another materials as shown in the graph.
35. STRAIN GRAPH:
This graph shows the Different maximum Strain values in different
materials, e glass epoxy 0.0001901 material has Strain value
compared to another materials as shown in the graph.
36. Advantages of Composite Leaf Spring:
• Minimum wear and tear of body parts and tyres due to delicate
tendency of absorbing shocks , jerks and vibrations.
• Softer ride, lower noise level, excellent stability due to better damping
characteristics.
• Excellent corrosion resistance to atmospheric pollutants.
• Five times stronger than conventional leaf spring.
• Increase in fuel efficiency due to better aerodynamics and around 60%
weight reduction.
• Fully interchangeable into conventional leaf spring without any
modifications.
37. Demerits Of Conventional Leaf Spring:
• They have less specific modulus and strength.
• Increased Weight.
• Conventional leaf springs are usually manufactured and assembled by using
number of leaves made of steel and hence weight is more.
• Its corrosion resistance is less when compared to composite leaf springs.
• Steel leaf springs have less damping.
38. APPLICATIONS OF LEAF SPRING:
To cushion, absorb or control energy due to either shock or
vibration as in car springs, railway buffers, air-craft landing
gears, shock absorbers and vibration dampers.
To apply forces, as in brakes, clutches and spring loaded valves.
To control motion by maintaining contact between two elements
as in cams and followers.
To measure forces, as in spring balances and engine indicators.
To store energy, as in watches, toys, etc.
39. Conclusion:
• As automobile world demands research of reducing weight and
increasing strength of products, composite material should be up
to the mark of satisfying these demands. As leaf spring contributes
considerable amount of weight to the vehicle and needs to be
strong enough.
• Deflection of e glass epoxy are 0.193 mm. e glass epoxy von- misses
stress are 42.793MPa and also the Shear stress leaf spring0.83,
respectively. E glass epoxy the Strain are 0.0001901
• A comparative study has been made between e glass 50cr1V23 Steel
and graphite leaf spring with respect to strength and weight. Here
find out deformations at different frequencies are obtained by
analyzing the Leaf spring with by using e glass epoxy material,
graphite epoxy and 50Cr1v23 Steel Material finally e glass epoxy
material is the better material ,leaf spring reduces the weight by
74.54% e glass epoxy over steel and graphite epoxy leaf spring,
finally concluded the e glass epoxy because of high strength low
weight and cost.
40. Future Scope
• Transient analysis of leaf spring
• Manufacturing of composite leaf spring.
• Experimental results for composite leaf spring.
• Residual stress calculation using FEA
41. References:
• Design and analysis of composite Leaf Spring for light Weight Vehicle
D. Lydia Mahanthi, C. Venkata Siva Murali
PG. student, Mechanical Department, Sri Padmavathi Mahila Visvavidyalayam,
Tirupati, India
Assistant Professor, Mechanical Department, Sri Padmavathi Mahila
Visvavidyalayam, Tirupati, India
• Design of Leaf Spring by NPTEL(National Programme Technology
Enhanced Learning)
• Design, Analysis and Experimental Testing of Composite Leaf Spring for
Application in Electric Vehicle
Mayur D. Teli, Umesh S. Chavan, Haribhau G. Phakatkar