Baja tutor knowledge base for baja sae enthusiasts. Computational analysis for improved design of an sae baja. Body shape model car body shape or bodywork, including sheet metal, for potential later use in aerodynamics simulations cfd and build reference measurements chassisframe modeling model space frame tube chassis structure and mounting brackets for potential later testing in structural design simulations. The report being elaborated below involves the design, analysis and fabrication of a multitubular space frame. As in real work situations, these future engineers work together as a team to discover and resolve technical challenges in design, test, and manufacturing, as well as business.
Next step is to ask other departments what and how much space and members would be required at what place to support their parts or assembly. If they are parametric, part dimensions and properties can be adjusted using param. Introduction the society of automotive engineers sae holds international design competitions each year where universities design, build and compete against other universities. Tube choice also depended on the mounting required. The vehicle is divided into various subsystems including chassis, suspension, drive train, steering, and braking system. The chosen design is a triangulated space frame comprised of both round and rectangular tubing. The design and development methodology presented in this paper is useful in conceptualization of an atv for sae baja event. Design of an sae baja racing offroad vehicle powertrain. Baja sae is an intercollegiate competition organized by society of automotive engineers sae to design, build and race offroad vehicles. Design, analysis and optimization of suspension system for. Our team decided to go chassis first and now were either stuck with a 1. Basically we design and build an offroad vehicle with a 10 hp briggs and stratton engine. Sae international is the global leader in technical learning for the mobility industry. Formula sae chassis analysis part 5 boundary conditions and solving.
Design and development of single seat, four wheeled. Suspension design by rajeev mokashi 2 acknowledgements explanation of automotive suspension. Baja sae series that allow collegiate chapters to primarily concentrate on the design and manufacturing of the chassis, drivetrain and suspension to improve the vehicle as the engine is standard amongst all teams. First of all we as a team needed to gain all the knowledge of the mechanics and dynamics of a car to manufacture one of our own. The design discussed in the following report involves the incorporation of a. You need to validate your design by using analysis software like hyperworks, ansys,lsdyna,abacus etc. Cad modelling software packages and optimization package in ansys. Vehicles parts chassis frames roll cages 3d models. Consider all the other points dimensions all member were set and model of roll cage was prepared using catia v5 software. Engineering students are tasked to design and build an offroad vehicle that will survive the severe punishment of rough terrain. Gordon murray was chief designer for the very successful brabham and mclaren racing car teams in the 1970s and 1980s. Design of an sae baja racing offroad vehicle powertrain eric t. Design and development of roll cage for an allterrain vehicle.
Your feedback will be important as we plan further development of our repository. The roll cage is designed to incorporate all the automotive subsystems. To choose the optimal material we did an extensive study on the properties. The 2014 akron baja car zb14 uses a comet 780 series cvt. Im a junior in mechanical engineering, and partake in saes intercollegiate design competition known as sae baja. Design analysis and fabrication of roll cage of mbaja atv. The teams are challenged to design, build and test a recreational offroad vehicle that conforms to the limitations established by the baja sae rules 2012. The rollcage is fabricated by a material of same composition but different crosssections depending on the load.
The first year was a bust, but this year is looking up. Baja sae was established in fall of 2015 at the university of colorado at boulder. As seen in figure 19, the maximum stress on the frame is 155. Chassis is the basic structure holding all the components together. Each baja team dedicates special efforts in optimizing a chassisroll cage to understand its strength and area for weight reduction. Tubing varies throughout the chassis depending on structural needs of that area, as well as severity of possible failure modes. Structural optimization of sae baja car frame design.
The cage must be designed and fabricated to prevent any failure of the cages integrity. Bruin racing baja sae designs and fabricates a single seat offroad vehicle on a yearly basis and competes it in society of automotive engineers collegiate design events, which challenge the car in endurance, several performance metrics, marketability and design. Proof of design for two months the chassis was tested along with the other components of the car. Suspension design is one of the most complex systems on a baja sae vehicle.
Chassis design for sae baja 2017 allterrain vehicle using ug nx. Baja sae challenges engineering students to design and build an offroad vehicle that will survive the severe punishment of rough terrain and in some competitions, water. The main objective for the mini baja competition was to design and fabricate a oneman allterrain vehicle having more than two wheels that could compete with manufactured versions from the viewpoint of safety. Suspension design for this competition is one of the most varied items seen at race. What softwares are used in designing atv for baja sae india.
The purpose of the 201415 society of automotive engineers sae baja mqp was to design, develop, and manufacture a vehicle within the specifications of the sae baja competition in order to enter a future competition. Abstract the objective is to design and develop safe and rigid roll cage for all terrain vehicle which accommodates all baja sae rulebook. Design and analysis of chassis for sae baja vehicle 1 shiva krishna j, 2 ambesh shetye, 3 prabhudev m allapur 1,3 assistant professor,dept. The purpose of the roll cage is to provide a minimal three. Sae membership helps you grow both personally and professionally. Otoole, examination committee chair associate professor of mechanical engineering university of nevada, las vegas baja sae is an intercollegiate competition to design, fabricate, and race a. Aerodynamics analysis for optimization the design of a baja. Design of baja sae roll cage chassis using solidworks. Main thing is to keep the target in mind while designing to get the better result. How to design the chasis for sae baja, what should i keep in. Baja sae india suspension design linkedin slideshare. Sae baja design automotive suspension engineering engtips.
Later the design is tested against all modes of failure by. Although it sounds like a glorified go kart, we do try to engineer it to the best of our abilities. Adjust the front chassis design to allocate for the obtainable. The goal in baja sae racing is to design, build and race an offroad vehicle that. Baja sae frame design masuzi february 8, 2020 uncategorized 0 too much frame also wheelbase track width height of the vehicle should be decided so you can proceed with designing chassis in cad software new frame concept design 1st attempt. The society of automotive engineers sae mini baja was originated at the university of south carolina in 1976. The chassis inherited from the 2014 sae baja mqp was utilized as a framework that the new designs had to integrate within. Decide what rims and tires youll use, then design a suspension based on those. Cetys universidad baja sae design report msc software. So this professor of mine had a vision a few years ago to gather up a few mechanical engineering students and start a sae baja team. Sae baja is a collegiate program where each team builds an offroad race vehicle to a strict set of rules, and competes across the nation with other teams. The purpose of this post is to give an idea of how to design a tubular space frame for the baja or formula sae competitions. To analyze and design a baja chassis in solidworks which was light weight. This article aims to show the aerodynamic design process by cfd simulation of a baja sae vehicle chassis using ansys software, widely used for simulation of static charges, thermodynamics, fluid mechanics, multiphysics systems and vibrations and to provide information that can be validated experimentally in the future.
The competition is open for undergraduate and graduate engineering students. Material of the roll cage material selection of the chassis plays crucial part in providing the desired strength, endurance, safety and reliability to the vehicle. Suspension design notes baja saeindia 2011 workshop 23rd july 2010 by rajeev mokashi 2. That is why sae international and its collegiate design series program is so welcomed at this institution. Issn 2277 design and development of minibaja chassis. For sae baja, the chassis design process has been laid out for you fairly effectively by the sae organizers. Pdf design, analysis and optimization of a bajasae frame. Chassis design for sae baja 2017 allterrain vehicle using. This is a case study of the working methods of one particularly successful designer in a highly competitive design domain, formula one racing car design. Then go for assembly of parts in chassis and make necessary changes to optimize design. Whether you are an engineer or business professional looking to advance your career, or an educator in search of creative and effective ways. Baja sae india is an intercollegiate design competition organized by the society of automotive engineers sae.
The terrain that must be covered is extreme and the horsepower is limited. Frame design for sae baja 2018 fea analysis upcoming software. Design, analysis and optimization of a bajasae frame. Aerodynamics analysis for optimization the design of a. It is a basic design, acting primarily as an artifact to help further my academic.
History of mini baja east, the purpose of the mqp was to design and manufacture a baja sae vehicle utilizing. Fully parametrizable design of a baja sae chassis using matlab and solidworks erichaggarbajasaeparametrization. Design, analysis and optimization of suspension system for an. Figure 18 welded square nose model frame design the welded square nose design in figure 18 performed even better than the square nose model.
In the optimized design of cshaped blade, hatchetshaped blade and lshaped blade maximum equivalent stress, total deformation and mass was reduced as compared to initial design. Fully parametrizable design of a baja sae chassis using matlab and solidworks erichaggar baja sae parametrization. Download vehicles parts chassis frames roll cages 3d models for 3ds max, maya, cinema 4d, lightwave, softimage, blender and other 3d modeling and animation software. So, we have created a set of video tutorials help them get started with suspension design using various ansys products. Assignment to the task of chassis design to the start of construction. Chassis is an important part of the baja vehicle that. Solidworks mechanical design automation software is a feature based, parametric solid modeling design tool which takes advantage of. When designing the roll cage features around a driver. To design chassis for sae baja you first have to read the rule book thoroughly. This is the procedure that i have come up with after being involved in the design, construction and testing of frames for formula sae vehicles. Our collage team is participating in baja sae competation. Bhola patel design engineer at cetpa infotech abstract this paper acts as a mock design report describing the overall chassis design that i developed for the baja sae competition. According to sae international 2016 collegiate design series, baja sae rules.
Sae mini baja project southeastern louisiana university. Chassis baja sae cad chassis buggy cross frame cad chassis chevrolet caprice 1986 cad. To create this chassis, i used the 3dmodelling software called solidworks. According to the data we start design on the software. Sep 04, 2012 the purpose of this post is to give an idea of how to design a tubular space frame for the baja or formula sae competitions. Software for creating models of your car concept or detailed design.
Baja sae is an annual intercollegiate competition in which teams race a once seat. This is the procedure that i have come up with after being involved in the design, construction and testing of frames for formula sae. Design any chassis, it need to study the laws and researches done on the race car chassis. What to do if your frame precheck documentsdrawings were rejected 947 published 01192015. Aim is to make sure that chassis have enough strength to withstand all possible impact loads. This is tutorial video on roll cage design in catia. Pdf design and analysis of chassis for sae baja vehicle. In which the atv is first designed and simulation is been carried out and then manufacturing is been done. This paper will describe the design process and performance of the rear suspension of the 20 bearcat baja vehicle. The baja sae series is a competition sponsored by the society of automotive engineers sae which gathers students from universities all around the world. Make the steering axis go through the center of the tire contact patch. Members on chassis team must do analysis in ansys explicit dynamics to simulate crash scenarios and therefore help validate chassis geometry.
Sep 20, 2017 this is tutorial video on roll cage design in catia. More videos will be on suspension design, brake design, steering design, tyre design and mini baja assembly. The university of akron 2015 sae zips baja offroad racing. I designed this chassis in fusion 360 for our collage team. Baja sae design report university of colorado boulder. Baja sae, the atv design event provides a platform for the undergraduate students to apply the principles of engineering science to expose their proficiency in the automotive world. Specialty events rock crawl, mud bog, and suspension and endurance. How to design the chasis for sae baja, what should i keep. Chassis design for sae baja 2017 allterrain vehicle using ug. Sep 20, 2019 formula sae chassis analysis part 5 boundary conditions and solving.
Computational analysis for improved design of an sae baja frame structure by nagurbabu noorbhasha dr. The university of akron 2015 sae zips baja offroad racing team 2015 suspension system design ryan w. The main motive of the roll cage is to ensure the structural safety and comfort of. Baja sae 20162017 page 4 of 125 abstract the purpose of the society of automotive engineers sae baja major qualifying project mqp was to analyze the preexisting baja sae bsae vehicles to determine flaws and design a new chassis that improved upon the previous designs. For setting dimensions reference of sae inida baja 2016 rule book was taken. Effect of aerodynamic load during cornering and front impact test will be carried out. Ride and handling of baja buggies off road suspension design book 1 english edition history of mini baja 19762000 look into past sae papers 2. Jan 17, 2017 roll cage design for sae baja competition 2017.
It belongs to the class of programs known as computer aided design. Sep 26, 2015 chassis design for baja sae cetpa infotech pvt. The roll cage has been designed by taking baja sae 2019 rulebook into consideration. The teams intent is design and fabrication of a rugged and marketable offroad vehicle. As the main structural component of the car, the chassis team works with all other technical teams in order to seamlessly integrate each system into a completed baja sae vehicle.
The design complies with the rules mentioned in the baja sae india 20 rule book. Sae baja originated in 1976 at the university of south carolina, where the first competition took place. Chassis is an important part of baja atv, hence it increases the responsibility on the chassis designer. The paper deals with one such design model of baja sae chassis as per the guidelines of baja sae. Material for the roll cage is selected based on strength, cost and availability. Ride and handling of baja buggies off road suspension design book 1 english edition history of minibaja 19762000 look into past sae papers 2. Design considerations aside, the driving factor behind chassis material selection were the sae competition vehicle regulations. To ensure a minimum factor of safety of the chassis during collisions by performing simulations in ansys. The most important part of your baja design and fabrication is to ensure the every member cut and attached to the chassis is within the specified rules and. The final design was obtained after several stages of.
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