During the initial phase of the project, the focus of the meetings was on the design and. The suspension leaf spring is one of the potential items for weight reduction in automobile 4. Hydraulic spring stiffness testing machine project. Leaf springs also known as flat spring are made out of flat plates. Global leaf spring market professional survey report 2018 leaf spring is a simple form of spring commonly used for the suspension in wheeled vehicles. A model of such jeep has been shown in this project report. Manufacturing of engine parts, piston, pin, piston ring, valve, control cable, engine mounting, auto lock, disc brake, drum, gear, leaf spring. Leaf spring design and engineering strength of materials. Leaf springs are extensively used in all diesel and petrol driven vehicles.
Use of leaf springs is increasing in replacement of broken spring on the vehicle for transportation. Spring testing machine by fsa canada conduct compression, shear, bending and hardness tests. A leaf spring is a simple form of spring commonly use for the suspension in wheeled vehicles. Leaf springs are used for rear suspensions on cars and many light trucks. Design and analysis of suspension system for an all terrain vehicle shijil p, albin vargheese, aswin devasia, christin joseph, josin jacob abstract in this paper our work was to study the static and dynamic parameter of the suspension system of an atv by determining and analyzing the dynamics of the vehicle when driving on an off road racetrack. Composite springs market report stratview research. Leaf spring design guidelines laminated leaf spring. It absorbs automobile vibrations, shocks and loads by springing action and to. Fea analysis is the most familiar word in the field of mechanical engineering. Design and analysis of composite leaf spring by using fea. Design and experimental analysis of leaf spring using. A single leaf with variable thickness and width for constant cross sectional area of unidirectional glass fiber reinforced plastic gfrp with similar mechanical and geometrical properties to.
A leaf spring takes the form of a slender arcshaped. Title include security classification manufacturing process for production of composite leaf springs for 5ton truck. When a structure is subjected to any type of load then it has to deform periodically and in any project of mechanical engineering, the same phenomenon takes place. You can also observe from the picture of the leaf spring that the thickness of the whole spring is maximum at the centre and is gradually decreases towards the ends. Explore independent wheel vehicle suspension with free download of seminar report and ppt in pdf and doc format. The leaf spring is based upon the theory of a beam of uniform strength. Without fea analysis, any project does not hold perfect. Leaf spring is the simplest form of spring used in the suspension system of vehicle. Eglassepoxy composite leaf spring can be suggested for replacing the steel leaf spring both from stiffness and stress point of view. The global composite spring is a niche market but possesses significant growth potential during the forecast period of 2016 to 2021.
The dimensions of existing conventional steel leaf springs of a light commercial vehicle are taken and are verified by design calculations. The weight of leaf spring may perhaps be reduced by using strength. Number of steps increases the spring absorbing capability. Keywords composite material, steel leaf spring, proe. Design and manufacture of an adaptive suspension system a major qualifying project report submitted to the faculty of worcester polytechnic institute this report represents the work of wpi undergraduate students submitted to the faculty as evidence of completion of a degree requirement. Suspension system nonlinear asymmetrical shock absorber. It comes in two models, stm for helical coil springs and fst for leaf springs. All these literature report that the cost of composite. Also explore the seminar topics paper on design, analysis, fabrication and testing of a composite leaf spring with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical. Static analysis of 2d model of conventional leaf spring is also performed using ansys 7. Pdf leaf spring is the simplest type of suspension spring commonly used.
Program project task work unit warren, michigan 48090 element no. Design and analysis of composite leaf spring idc technologies. Manufacturing process for production of composite leaf springs for. Design and analysis of composite leaf spring international journal of mechanical and industrial engineering ijmie, issn no. Design and analysis of leaf spring by using composite material for light vehicles syambabu nutalapati b. Tiger leafsprings has been the only manufacturer in the philippines to make the full range of leaf springs. Spring design objectives identify, describe, and understand principles of several types of springs including helical compression springs, helical extension springs, torsion tubes, and leaf spring systems. Manufacturing of engine parts, piston, pin, piston ring. Mallikarjun and venkata ramesh mamilla 4 gave design and analysis of automobile multi leaf spring using composite material. Suspension system nonlinear asymmetrical shock absorber vehicle dynamics term project advisor. For heavy vehicles multi leaf spring are used while light vehicle mono leaf spring can be used. A single or mono leaf spring is usually tapered to produce a variable spring rate.
Introduction leaf springs are mainly used in suspension systems to absorb shock loads in automobiles like light motor vehicles, heavy duty. Usually, leaf spring is assembly of several leaf springs which is made of steel. Project implementation will take a period of 8 months from the date of approval of the project. At the same time, we should take care that there has been no compromise made with quality. Use of leaf springs is increasing in replacement of broken spring. Due to manufacturing ease, a composite leaf spring with. At present, leaf spring assembly is mostly applied on commercial vehicles. For example, composite leaf spring is five times more durable than that of similar sized steel leaf springs at just 17 th the weight of a steel leaf spring. Now that the part exists, define a library of the necessary materials that compose the object or project being modeled. Design and analyze helical compression springs, including compatibility with allowable stresses. A variable rate can be accomplished with a leaf spring suspension by providing contacts on the mount that effectively. Static and modal analysis of leaf spring using fea meghavath. Design and fabrication of the leaf jig mechanical project abstract this project is based on the need for the work holding devices. Composite leaf spring mechanical engineering project.
Spring coil springs leaf springs damper shock absorber need for damper. This deigned leaf spring is built up of several plates with steel material, but the steel leaf spring has an excessive weight. Therefore, sophisticated machines and modern techniques have to be constantly developed and implemented for economical manufacturing of products. In addition to shock absorbing multi leaf spring carries s lateral loads, brake torque, driving torque leaf spring are being used from very long time in.
This is fords first leaf spring project with composites in series worldwide. A leaf spring is a simple type of suspension spring commonly used in heavy duty vehicles. While the conventional spring damper design would require. Design, analysis, fabrication and testing of a composite. The serial application is supported by a onetoone compatibility with standard steel springs. Single leaf steel springs, called mono leaf, are used on some vehicles. Oem standard replacement and heavy duty leaf springs for trucks, vans and suvs. This blade is called main or master leaf, the remaining blades. In fact they are made blunt or even made straight to increase the load bearing capacity. E machine design andhra university, andhra pradesh, india abstract reducing weight while increasing or maintaining strength of products is getting to be highly important research issue in this modern world. Also explore the seminar topics paper on independent wheel vehicle suspension with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019.
Types leaf springs multi leaf spring mono leaf spring parabolic single leaf spring fiberglass leaf spring more than 1 leaf assembled using center bolt and clips only 1 leaf constant width and thickness lighter spring rate one main leaf with tapered thickness lighter than multi leaf springs made of a mixture of plastic. In comparison to conventional leaf springs, the innovative composite leaf spring weighs about 50 percent less while offering increased security standards. Leaf springs are all but dead as a technology in the car world. Design and manufacture of an adaptive suspension system. For those of us who like to disassemble things and scavenge the parts, i thought you might like to know the different kinds of common springs and what they do. Independent wheel vehicle suspension seminar report, ppt. Ijsart design, analysis and fabrication of a composite. Our project is mainly composed of design and fabrication of the leaf jig.
A engineer is always focused towards challenges of bringing ideas and concepts to life. The leaf spring was modeled in proe and the analysis was done using ansys metaphysics software. Sgl carbon produces composite leaf springs for ford. Leaf spring, ask latest information, abstract, report, presentation pdf,doc,ppt, leaf spring technology discussion, leaf spring paper presentation details, leaf spring. Pdf design development and performance analysis of leaf. This design and fabrication which will enable the operation like drilling, reaming, tapping process easier even the job profile are angular. Project leaf spring suspension vehicle screw scribd. Explore design, analysis, fabrication and testing of a composite leaf spring with free download of seminar report and ppt in pdf and doc format. In analysis part the finite element of leaf spring is created using solid tetrahedron elements. This report covers the work performed under phase i and phase ii of. Leaf springs need to be replaced for multiple reasons as over time they sag, crack, break and lean so your best solution is to replace them with what best fits your needs. The leaf spring testing machine model fst is used to test wide range of leaf laminated springs for load rate as per is 1. Forthcoming programme tender notic training calender progress report msmed act, 2006 r t i public grievance schemes of mo msme rosters schemes of dcmsme entrepreneurs memorandum subcontract vendor facility services technical resource project profile lean activity status reimbursement scheme nsicgpp scheme status other services office.
This project describes design and experimental analysis of composite leaf spring made of glass fiber reinforced polymer. Leaf springs design, calculation and testing requirements. Totally it is found that the composite leaf spring. Design and construction of a spring stiffness testing machine. Originally called a laminated or carriage spring, and sometimes referred to as a semielliptical spring or cart spring, it is one of the oldest forms of springing, dating back to semimedieval times. As shown in the picture, the leaf spring or laminated leaf spring consists of a couple of fulllength leaf and a number of graduated leaves. The code samples and example application in this tutorial make use of spring 4. The leaf spring was modeled in autocad 2012 and the analysis was done using ansys 9. Our project is mainly composed of design and fabrication of the leaf. Breakup of activities with timeperiod for each activity is shown below.579 1302 68 1280 999 1584 860 1329 692 477 1392 843 1631 794 1060 1059 782 1658 594 1249 240 346 1515 496 793 724 1406 649 1344 746 808 383 1294 700 437 320 1443 1089