leaf spring research papers
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leaf spring research papers




Mono Composite Leaf Spring for Light Weight Vehicle–Design, End Joint Analysis and Testing
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The automobile industry has shown increased interest in the replacement of steel spring with fiberglass composite leaf spring due to high strength to weight ratio. Therefore; the aim of this paper is to present a low cost fabrication of complete mono composite leaf spring 

Analytical and experimental studies on fatigue life prediction of steel and composite multi-leaf spring for light passenger vehicles using life data analysis
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This paper describes static and fatigue analysis of steel leaf spring and composite multi leaf spring made up of glass fibre reinforced polymer using life data analysis. The dimensions of an existing conventional steel leaf spring of a light commercial vehicle are taken and are 

Multi-leaf spring and Hotchkiss suspension CAE simulation
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This paper presents detailed finite element modeling and analysis of a two-stage multi-leaf spring, a leaf spring assembly, and a Hotchkiss suspension using ABAQUS. Non-linearity from large deformation, interleaf contact, and friction was included. Stresses and strains under 

Freight wagon running gears with leaf spring and ring suspension
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Page 1. Freight Wagon Running Gears with Leaf Spring and Ring Suspension Marc Stiepel, Stephan Zeipel November 2004 Page 2. November 2004 2  Page 3. November 2004 3 Bogies with Leaf Spring and Ring (Chain Link) Suspension z Leaf Spring or Parabolic Spring in 

Leaf spring modeling
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ABSTRACT Although leaf springs are one of the oldest suspension components they are still frequently used, especially in commercial vehicles. Being able to capture the leaf spring characteristics is of significant importance for vehicle handling dynamics studies. The 

Responses of canopy duration to temperature changes in four temperate tree species: relative contributions of spring and autumn leaf phenology
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GLOBAL CHANGE ECOLOGY ,ORIGINAL PAPER Responses of canopy duration to temperature changes in four temperate tree species: relative contributions of spring and autumn leaf phenology Yann Vitasse Æ Annabel 

Modelling the static stiffness and dynamic frequency response characteristics of a leaf springtruck suspension
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The suspension characteristics of a 10 ton truck with a highly non-linear leaf spring suspension have been investigated. The acceleration transmissibility frequency response characteristics of the truck were first investigated. Results showed that whereas the 

Experimental InvestigationNumerical Analysis of Composite Leaf Spring
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ABSTRACT The Automobile Industry has shown keen interest for replacement of steel leaf spring with that of glass fiber composite leaf spring, since the composite material has high strength to weight ratio, good corrosion resistance and tailor-able properties. The 

Modelling and Analysis of Composite Leaf Spring under the Static Load Condition by using FEA
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ABSTRACT Leaf springs are one of the oldest suspension components they are still frequently used, especially in commercial vehicles. The past literature survey shows that leaf springs are designed as generalized force elements where the position, velocity and orientation of 

A Finite Element Approach for Analysis of a Multi Leaf Spring using CAE Tools
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ABSTRACT This work is carried out on a multi leaf spring having nine leaves used by a commercial vehicle. The finite element modelling and analysis of a multi leaf spring has been carried out. It includes two full length leaves in which one is with eyed ends and 

Evaluation of a leaf spring failure
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ABSTRACT The determination of the point of failure during an accident sequence of a rear leaf spring in a sport utility vehicle is presented in terms of fracture surface analysis and residual- strength estimates. Marks at the scene of the accident pointed to two possibilities for the 

Multi-response optimisation in a three-link leaf-spring model
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The simulation of road loads in truck suspensions generally requires leaf-spring models. There are many models in the literature. In this study the three-link leaf-spring model was compared with the test results. An attempt was made to establish the model by predicting 

Investigation into the effects of shot peening on the fretting fatigue behaviour of 65Si7 spring steel leaf springs
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 Full-scale leaf spring laboratory test- ing and specimen testing were carried out to show the extent of improvement in fatigue life as a result of shot peening. Structural damping is found to be an important surface characteristic of shot peened surfaces for reducing fretting fatigue. 

Analysis and Modification of Leaf Spring of Tractor Trailer Using Analytical and Finite Element Method
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ABSTRACT The leaf spring used in tractor trailer without much economical and technical consideration. In the present work improvement areas where one can improve the product quality while keeping the minimum cost. In the present work analytical and Finite element 

Elastic Stiffness Analysis of Leaf Type Holddown Spring Assemblies
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 1, and it is composed of 3 or 4- leaf springs. So Westinghouse company') developed experimental correlations on the elastic stiffness of each leaf spring from much experience of designing and manufacturing, and they applied it to designing of their own leaf type spring. 

Fatigue performance of discontinuous fibre-reinforced thermoplastic leaf spring
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The present work investigates the fatigue performance of fibre-reinforced injection-moulded leaf springs. Twenty per cent discontinuous long, short glass fibre-reinforced polypropylene (SFPP) and unreinforced polypropylene (UFPP) materials are used for manufacturing 

A Characteristic Analysis on the Elastic Stiffness of the Tapered-width Leaf Type Holddown Spring Assembly Designed in KOFA's Design Space
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 holddown force. For example, E developed empirical forrnulasw for each leaf spring based on actual tests and Siemens/KWU derived a formula by de?ning the leaf as a horizontal cantilever and apply- ing an Euler beam models'. For 

Parabolic Leaf Spring Optimization and Fatigue Strength Evaluation on the Base of Road Load Data, Endurance Rig Tests and Non Linear Finite Element
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ABSTRACT Parabolic leaf spring plays a vital role in the suspension systems, since it has an effect on ride comfort and vehicle dynamics. Primarily, leaf spring endurance must be ensured. Presently, there are two approaches to design a leaf spring.

Ultraprecision XY stage with millimetre travel range using leaf-spring mechanism and voice-coil motor
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DW Kang, DM Kim, KH Kim, JY Shim, DG Gweon Nowadays, manufacturing technologies such as machine tool and semiconductor manufacturing processes and measuring technologies such as scanning probe microscopes are rapidly processed and stimulate the development of precision positioning devices. 

Study of a Parabolic Leaf Spring by Finite Element MethodDesign of Experiments
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ABSTRACT This work is carried out on a mono parabolic leaf spring of a mini loader truck, which has a loading capacity of 1 Tonnes. The modelling of the leaf spring has been done in CATIA V5 R20. And for finite element analysis the model was imported in the static 

INVESTIGATION OF STRESSES IN MASTER LEAF OF LEAF SPRING BY FEM AND ITS EXPERIMENTAL VERIFICATION
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ABSTRACT The main component of leaf spring is master leaf and it is subjected to cyclic loading. There are many causes of master leaf failure. The maximum stress induced in the master leaf is at support. Due to non geometric linearity and large deflection behavior the 

PERFORMANCE COMPARISON OF CONVENTIONAL AND COMPOSITE LEAF SPRING
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ABSTRACT Leaf springs are one of the oldest suspension components that are being still used widely in automobiles. Weight reduction is also given due importance by automobile manufacturers. The automobile industry has shown increased interest in the use of 

Static And Fatigue Analysis Of Multi Leaf Spring Used In The Suspension System Of LCV
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MVK Aher, MPM Sonawane ABSTRACT The leaf spring is widely used in automobiles and one of the components of suspension system. It needs to have excellent fatigue life. As a general rule, the leaf spring must be regarded as a safety component as failure could lead to severe accidents. The 

Design and Analysis of Fiber Reinforce Polymer (FRP) Leaf Spring-A Review
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BB Deshmukh, SB Jaju ,techsciencepub.com ABSTRACT Weight reduction is now the main issue in automobile industries. Weight reduction can be achieved primarily by the introduction of better material, design optimization and better manufacturing processes. The introduction of FRP material has made it possible to 

Leaf Spring Modelling for Real Time Applications
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IN Kessing, DIO Lange, AG Ford Werke ,homepages.fh-regensburg.de Even though it is the oldest type of automotive suspension, leaf springs continue to be a popular choice for solid axles. Though simple in appearance, a leaf spring suspension causes many problems in modelling. For dynamic simulation the vehicles are usually 

EYE DESIGN ANALYSIS OF SINGLE LEAF SPRING IN AUTOMOTIVE VEHICLES USING CAE TOOLS
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GB Vinkel Arora, ML Aggarwal ,cibtech.org ABSTRACT This paper is focused on determination of better eye end design of single leaf spring used in light motor vehicle. The procedure of this work is to carry out computer aided design and analysis of conventional single leaf spring with actual design considerations 

Minimization Of Stress In A Parabolic Leaf Spring By Local Algorithm For ConstantPriorities
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N Yadav, R Dewangan, M Patnaik ABSTRACT A leaf spring is simple form of spring, generally used for the suspension in automotives. Earlier it was like a slender arc-shaped having length of a spring steel of rectangular crosssection. In this paper analysis is done for leaf spring whose thickness 

STATIC AND DYNAMIC ANALYSIS ON COMPOSITE LEAF SPRING IN HEAVY VEHICLE
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BVLI Satyanarayana, MT Student ABSTRACT A leaf spring is a simple form of spring, commonly used for the suspension in wheeled vehicles. Leaf Springs are long and narrow plates attached to the frame of a trailer that rest above or below the trailer's axle. There are monoleaf springs, or single-leaf 

Design and Analysis of Composite Leaf Spring
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YNVS Kumar, MV Teja ABSTRACT In these paper, composite structures for conventional metallic structures has many advantages because of higher specific stiffness and strength of composite materials is discussed. The automobile industry has shown increased interest in the replacement of 

Genetic Algorithm Based Optimal Design of Mono Composite Leaf Spring and Testing
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ABSTRACT The role of composites in weight reduction and fuel saving in automobiles is highly significant. The aim of the present work is to replace the steel leaf spring with a Genetic Algorithm based optimally designed composite leaf spring. The Genetic Algorithm based 

A METHOD TO ESTIMATE THE ELASTIC STIFFNESS OF THE LEAF TYPE HOLDDOWN SPRING ASSEMBLY
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KN Song, KH Yoon ,jsme.or.jp  Key Words: HoldDown Spring Assembly, HDS, Leaf Spring, Euler Beam Theory, Castigliano's Theorem, Strain Energy Method, Elastic Stiffness Formula. 1. INTRODUCTION  1, each leaf spring is divided into regions, as designated in Figs. 

Influence of different stress concentration factors in mono-leaf spring on its final fatigue life
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P Borkovic, B utaric, V Leskovek, B uek ,ipssc.mps.si ABSTRACT Fatigue life of a component is a very important information regarding safety and stability of any dynamically loaded systems. Since the failure under such loaded parts can occur even at lower stress than static tensile strength, the fatigue life has to be assessed 

Minimization of Stress of a Parabolic Leaf Spring by Simulated Annealing Algorithm
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RK Dewangan, M Patnaik, N Yadav ABSTRACT A leaf spring is simple form of spring, generally used for the suspension in automotives. Earlier it was like a slender arc-shaped having length of a spring steel of rectangular cross-section. In this paper analysis is done for leaf spring whose thickness 

Development and investigation of a textile-reinforced thermoplastic leaf spring with integrated sensor networks
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ABSTRACT Textile-reinforced plastics are of continuously rising interest for industrial applications. Especially textile-reinforced thermoplastics offer benefits for applications in aerospace and automotive engineering. This can be explained mainly by the large-scale 

Performance Analysis of Two Mono Leaf Spring Used For Maruti 800 Vehicle
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ABSTRACT In this paper we look on the suitability of composite leaf spring on vehicles and their advantages. Efforts have been made to reduce the cost of composite leaf spring to that of steel leaf spring. The achievement of weight reduction with adequate improvement of 

Development of Porous Aluminium Foam for Making Commercial Vehicle Leaf Spring
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ABSTRACT The automobile industry has shown increased interest in the replacement of steel spring with different materials like aluminium foam, fibreglass, composite leaf spring due to high strength to weight ratio. This research work describes about the development of 

Determination of Camber and Leaf Span of a Parabolic Leaf Spring for Optimized Stress and Displacement Using Artificial Neural Networks
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ABSTRACT This work has been carried out on a parabolic leaf spring of a mini loader truck. The spring has been analyzed by applying a load of 3800 N and the corresponding values of stress and displacement are computed. In this work, Design of experiments has been 

Fatigue Life Prediction of Multi Leaf Spring used in the Suspension System of Light Commercial Vehicle
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VK Aher, RA Gujar, JP Wagh, PM Sonawane ,irdindia.in ABSTRACT –The Leaf spring is widely used in automobiles and one of the components of suspension system. It needs to have high fatigue life. As a general rule, the leaf spring is regarded as a safety component as failure could lead to severe accidents. The purpose of 

DESIGN AND STRUCTURAL ANALYSIS OF COMPOSITE MULTI LEAF SPRING
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D Ashok, MV Mallikarjun, VR Mamilla ,rspublication.com ABSTRACT Leaf springs are one of the oldest suspension components which are still frequently used, especially in automobile vehicles. These are used to absorb the fluctuating loads from the vehicle. In This paper gives the information about design and structural 

A new Massless leaf Spring Model for Full Commercial Vehicle Simulations
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In the commercial vehicle industry, there is no documented standard for modeling leaf springs. This means that the modeling process is fault-prone as well as uncertain and the simulations produce hard-to-compare results. The quality of the model depends mainly on 

Heavy vehicle dynamics-comparison between leaf spring and hydropneumatic suspensions.
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ABSTRACT This paper reports the vertical dynamic response of two heavy vehicles to three different types of terrain under various load and speed conditions. The vehicles studied were (i) a heavy vehicle with conventional leaf springs at the front and rear (ii) the same heavy 

Experimental investigations of double multi-leaf spring subjected to impact load
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ABSTRACT The article deals with experimental investigations of a prototype double multi-leaf spring, compound of a fourleaf main spring and a double-leaf supporting spring subjected to an impact test. In real conditions of car movement (eg curb, bump), dynamic oscillating 

A PERFORMANCE EVALUATION OF LEAF SPRING REPLACING WITH COMPOSITE LEAF SPRING
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YG NADARGI, DR GAIKWAD, UD SULAKHE ABSTRACT The automobile industry has shown increased interest in the replacement of steel spring with fibre glass composite leaf spring due to high strength to weight ratio. Therefore the aim of this work is to reduce the weight and low cost fabrication of complete mono 

FATIGUE DESIGN METHOD FOR LEAF SPRING OF THE LIGHT COMMERCIAL VEHICLE BASED ON DAMAGE ANALYSIS
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I Sohn, D Bae, W Jung ,zkamioni.dnsalias.com ABSTRACT The suspension system of vehicle is directly influenced to ride and handling. Therefore, suspension system should have enough endurance during its design life to protect passenger. Among the suspension system, leaf spring is one of major part of light 

FEM SIMULATION OF A MONO-LEAF SPRING AND ITS FATIGUE LIFE PREDICTION MKE SIMULACIJA MONO LISNATE OPRUGE I PROCENA VEKA
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P Borkovic, B utaric, V Leskovek, B uek ,divk.inovacionicentar.rs ABSTRACT The fatigue life determination of a component obtained by testing the real geometry is a time consuming and expensive task. Therefore, the prediction of the fatigue life of a part by means of finite element method (FEM) is a frequent procedure of component designing. 

ANALYSIS OF COMPOSITE LEAF SPRING BY USING ANALYTICALFEA
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ABSTRACT Leaf spring are of the oldest suspension component they are still frequently used. The current leaf spring is multiple leaf spring types with a steel material. It has high weight, low natural frequency, high corrosion, more noise. Therefore current multiple leaf spring is 

Design, Manufacturing and Testing of Polymer Composite Multi-Leaf Spring for Light Passenger Automobiles-A Review
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Weight reduction has been the main/primary focus of automobile manufactures. Suspension leaf spring, a potential item for weight reduction in automobiles, accounts for 10-25 percent of unsprung weight,(which is considered to be the mass not supported by leaf spring). 

Static Analysis of Composite Semi–Elliptical Leaf Spring
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DH Devaraj, M Venkatesan ABSTRACT This project describes design and experimental analysis of composite leaf spring made of glass fiber reinforced polymer. The objective is to compare the load carrying capacity, stiffness and weight savings of composite leaf spring with that of steel leaf spring. 

Modeling and Analysis of Laminated Composite Leaf Spring under the Static Load Condition by using FEA
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ABSTRACT This paper describes design and analysis of laminated composite mono leaf spring. Weight reduction is now the main issue in automobile industries. In the present work, the dimensions of an existing mono steel leaf spring of a Maruti 800 passenger vehicle is 

Comparison of Performance of Two Leaf Spring Steels Used For Light Passenger Vehicle
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C TT II, C EE ,vsrdjournals.com ABSTRACT This paper describes static and fatigue life analysis of to conventional leaf springs made of respectively SUP 9EN 45. These springs are comparing for maximum stress, deflection and stiffness as well as fatigue life. The CAD models are prepared in 

A KINETIC ANALYSIS TO POWERISER (AN ENERGY STORAGE AND RETURN SPRING LEAF DEVICE)
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 The present investigators doubted that the efficiency and performance of poweriser was influenced by the stiffness of leaf spring, the type of motion, and participant's body mass. KEY WORDS:, poweriser, spring leaf, ESAR, walking efficiency, mid-stance 

STATIC ANALYSIS OF LEAF SPRING
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ABSTRACT Leaf springs are special kind of springs used in automobile suspension systems. The advantage of leaf spring over helical spring is that the ends of the spring may be guided along a definite path as it deflects to act as a structural member in addition to 

Optimisation of Leaf Spring Deflection Using Dynamic Characteristics
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ABSTRACT Taguchi robust design is an important engineering methodology which renders a product or a process insensitive to the effects of variability and improves the performance at low cost including in static and dynamic characteristics. Dynamic characteristic is also 


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