Smitty describes the design principles for the chassis of a race car. Truck ladder chassis with the constraints of maximum shear stress, equivalent stress and deflection of the. At the start of any design project you have define your goal and. Computed results are then compared to analytical calculation, where it is. The ure06 will have a chassis consisting of a carbon. The chassis or frame is a structure which locates and mounts all other parts of the vehicle.
Curiosity, by design, can sustain over 50 deg tilt in any direction. Pdf on apr 21, 2012, vijay patel and others published structural analysis of a. And the design of the chassis would be taken in the catia v5 software, the design calculations are carried out with the is standards. Existing main frame cross section design modification for weight reduction model no. Chassis calculations for frame design fu14116 diva. A chassis design should have adequate bending stiffness for better handling. It also provides a protected space for the occupants. Design of a tubular steel space framefor a formula student. Static analysis is performed in solidworks software using fea technique on the chassis cad model successfully. A backbone chassis is a type of automobile construction chassis that is similar to the bodyonframe design.
The chassis will be designed using the computer aided design cad program solidworks and will be analysed using a finite element analysis fea program ansys. The material selected for the chassis building is aisi 4. Ensure all bolts for structural purpose are high tensile bolts in at. Since the chassis has a complex geometry and loading patterns, there is no welldefined analytical procedure to analyze the chassis. One can also begin with an imported surface or solid geometry. But then there were two wheelers with side cars that were an.
Moreover, the design should consider the reinforcement of the chassis. Truck chassis is a major component in a vehicle system. Instead of a twodimensional ladder type structure, it consists of a strong tubular backbone usually rectangular in cross section that connects the front and rear suspension attachment areas. An isometric view of total frame after assembly is shown below. Gokart, by definition, has no suspension and no differential. Design guides black, white and grey packaging driver position fuel tank position performance vs. Design, analysis and manufacture of 2011 rev formula sae. Figure vii isometric view of assembly diagram of the whole frame 5. The advantage of using shell element is that the stress details can be obtained over the subsections of the chassis as well as over the complete section of the chassis. The calculation of the stress produced in chassis is calculated by the moment.
Part of each chassis design cycle is the determining of a chassis. Structural analysis of ladder chassis frame for jeep. In this paper, the use of such simulation methods is used to design a new chassis for the oneseated prototype electric vehicle louis, of tuc eco racing tucer team. The engineering process for the design of a motorcycle. The chassis design includes the selection of suitable shapes and crosssection of chassis members. Structural analysis of automotive chassis frame and design modification for. Pdf design and analysis of gokart chassis ijesrt journal. Fea is done on the modelled chassis using the nastran patran workbench. Divyanshu sharma and y d vora 2 studied the chassis design, identified different types of chassis, designed and analyzed a heavy duty trailer chassis using finite element analysis software and reduced the weight of the trailer for proposed sections with same stiffness and.
The project concerns rationalizing chassis calculations for use in truck frame design. Load calculations whilst adequate durability under dynamic conditions is a design requirement for the vehicle structures, the static load cases cannot be disregarded. Structural systems like the chassis can be easily analyzed for the stress, and stiffness, etc. Beam elements have been used to simulate various attachments over the chassis, like fuel tank mountings, engine mountings, transmission mounting, etc. Design, static and dynamic analysis of an all terrain. Dynamic analysis and design modification of a ladder chassis.
This new book provides insight into the development of chassis technology and its practical application by a master. The numerical results are validated with analytical calculation considering the stress distribution and deformation. The design of the chassis is guided by different rules set up by the formula society of automotive engineersfsae. Pdf structural analysis of automotive chassis frame and design. This work involves static and dynamics analysis to determine the key characteristics of a truck chassis. Specialized software, such as motorcycle kinematics, matlab, catia, heeds professional, and nastran are utilized. Fatigue life analysis and improvements of the auto body in a sports utility vehicle suv were performed by. Structural analysis of automotive chassis frame and design. This type of chassis is commonly found in busses, trucks, suvs and pickup vans. In order to reach these objectives lightweight, high volume and multifunctionality a new lightweight innovative design concept based on a selfsupporting box structure is essential. The static characteristics include identifying location of high stress area and determining the torsion stiffness of the chassis. Chassis design targets chassis strength chassis stiffness bending and torsion access and egress visibility removable vs.
In order to design and optimize chassis components and systems using calculations of strength and subse quent experimental validation, the exact cross. Structural stress analysis of an automotive vehicle chassis. So, maximum stress, maximum equilateral stress and deflection are important criteria for the design of the chassis. The thesis objective is to define and establish an engineering process for the design of a modern motorcycle chassis and suspension. The aim is to design a frame with ultimate strength to show that the design is safe, rugged and easy to maneuver. Analytical calculations are done based on standard results to get maximum strength with minimum possible weight. By framing the goals and constraints, we quickly identify the least flexible areas of design e. Yadav, design and analysis of 30 ton trailer chassis frame to reduce pollution by decreasing the emission through weight reduction using advanced lightweight material, international. After design completion of frame and swing arm separately, assembly was performed by combining both the frame and the swing arm. Pdf design considerations for automobile chassis for. The design of chassis was done in catia v5 software. In such a design the box itself rather than a chassis forms the loadbearing component.
The chassis has the ability to carry and support the power train, power unit, running system, etc. While much of chassis geometry and material choice is dictated by the competition rules, it is possible to build vehicles with a very large range of chassis stiffnesses. The chassis material is considered depending upon the various factors such as maximum load capacity, absorption force capaci ty, strength, rigidity. Wevj free fulltext lightweight chassis design of hybrid trucks. Chassis and impact attenuator design for formula student. Design and analysis of new flexible and safe forklifts. Chassis torsional rigidity analysis for a formula sae racecar. The book acts as an introduction to the engineering design of the automobiles fundamental mechanical systems. In partial fulfillment of the requirements for the. Design of a formula student race car chassis what is materials.
From the above calculation we can conclude that aisi 1020 is one of the material that could be used for fabrication of gokart chassis as it gives better performance. The subject for analysis is a sixwheeled articulated truck, and the load cases under study is lateral loading, frame torsion and vertical load on kingpin. Generated stresses and deflection after reducing area must be less than its allowable limit. Pdf design, analysis and testing of a formula sae car. The simplest calculations we can perform to estimate the natural frequency of a frame or chassis is to assume the frame is a simple tube with two masses at either end. The chassis design in general is a complex methodology and to arrive at a solution which yields a good performance is a tedious task. Modal analysis is used to determine the mode shapes and natural frequencies of a machine or a structure. Pdf structural analysis of a ladder chassis frame researchgate. System with spring suspensions are susceptible to tipover sideways easily than rockerbogie. Design and analysis of truck chassis frame iosr journal. Ladder frames used by early motor cars early cars body frame did not contribute much for vehicle structure.
Calculation shows that the maximum acceleration for any mass in the vehicle is. Introduction the design of chassis is fully on conceptual basis and the objectives are to create conceptual design for an automotive chassis which will utilize standard components. The index page of the final reports of the academies summer research fellowship programme 2017. Making robust deformation and stress models with a calculation time su ciently short and. Very soon i realized that i will have to have a form that will have to destroy such image. For go kart the main consideration in design of roll cage is that due to no suspension it should have flexibility which will be act. The authors simplified the suspension with an equivalent beam to calculate the frames strength under diverse load conditions. The fea of the chassis suspension is built from an assembly of beam and shell elements using geometry measured from a typical 2005 ford mustang chassis. Chassis design approach the chassis has been designed by taking factors likedimensional limits width, height, length, and weight, operational restrictions, regulatory issues, contractual requirements, financial constraints and human ergonomics as a priority. Design and analysis of ladder frame chassis considering.
Mobile elevating work platforms design calculations. Modification code h7 design or manufacture of aftermarket. Introduction depending upon structure the chassis should have resistance. Dynamic analysis and design modification of a ladder. Typical capabilities on basis of which these vehicles are judged are braking test, bumping, hill climbing, pulling, acceleration and maneuverability on land as well as shallow waters. The chassis supports the power unit, power train, the running system etc.
Design modification of ladder chassis frame international journal. The subject for analysis is a sixwheeled articulated truck, and the load cases under study is lateral loading, frame torsion and vertical load on. This tutorial will give you a basic idea to design a chassis and various parameters which you need to select to design a chassis. Principles and analysis is based on olleys technical writings, and is the first complete presentation of his life and work. The weight reduction, the effective design and the solidity of the structure are the key objectives in order to result to the best possible product design. Introduction in modern world onroad vehicles have changed drastically based on the design and other functional aspects. Adesignimpressionoftheure05e thesis objective the objective of this thesis is to design the rear frame of the ure06 in such a way that it can mount the electric components. The chassis undergoes various kinds of forces during locomotion, it is intact without yielding, and it should. Cross beam mostly made of wood which has low stiffness carried all load bending and torsion advantages. This is the fourth in the series of videos developed for ucis racecar engineering prog.
This project has been set up to design the chassis as well as the impact attenuator for the f15 race car. Chassis, chassis of vehicle, stress on chassis, chassis strength analysis, automotive frame, ladder frame, chevy truck chassis, kit car. Many examples are worked out in the text and the analytical developments are grounded by olleys years of design experience. The engineering process focuses on the interdisciplinary fields of engineering dealing with design and structural optimization. Care has been taken to model internal constraints between degreesoffreedom dof at suspension to chassis connections, by pinning the rearward points immovable at the nodes. Typically, we begin with a sketch, create a base feature, and then add more features to the model. Basic calculations for trailer structure capacity of trailer g.
Keywords fsae, chassis, frame, solidworks, ansys, fea. This report is the work performed towards the optimization of the automotive chassis. There are multiple types of chassis but all of them can be classified into one of two approaches use lengths of round or square tubing, or other structural metal shapes to form the. The ladder chassis frame consists of two symmetrical long members and a number of connecting cross members.
Divyanshu sharma and y d vora 2 studied the chassis design, identified different types of chassis. They are usually raced on scaled down tracks, but are sometimes driven as entertainment or as a hobby by nonprofessionals. This report is the work performed towards the optimization of the automotive chassis with constraints of maximum. This comprehensive overview of chassis technology presents an uptodate picture for vehicle construction and design engineers in education and industry. Finite element analysis of the design was accomplished. Design and fabrication of full scale prototype truck chassis. Ensure all new holes in the chassis are in line with the drilling holes in chassis subsection in vsb6 section h overview. From the results obtained, the new selected chassis design which also declared as the new improved design poses the weight of 27. The design incorporates independent motors for each wheel. Can accommodate large variety of body shapes and types. In that study, chassis of distinct material choose were studied and showed the.
Design, analysis and testing of a formula sae car chassis william b. Material and design optimization for an aluminum bike frame. Chassis frames are made of steel section so that they are. Design, analysis and testing of a formula sae car chassis. Each of the masses has a moment of inertia, i, and the center tube has stiffness, k.
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