Solidworks 2018 was used for the physical modeling of the suspension in a file su93001ba 16. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The chassis no longer meets the requirements for the fsae competition as the rules for the competition have changed since 2002. Pdf on oct 25, 2016, lucas iensen bortoluzzi and others published formula sae chassis design to improve suspension tuning find, read and cite all the research you need on researchgate. Fsae 2015 chassis and suspension final report fiu department. University of alberta f ormula sae on boarding package 20112012. The unequal aarm suspension was chosen by the suspension team as the design concept to be pursued during phase two. To design and build 2 sets of dampers 8 in total for a fsae racecar, that will perform better than any available offtheshelf piece, and run them at the fsae competition in may 2006. The optimization of a formula sae vehicles suspension. The follow images show the manufactured chassis with the suspension, steering wheel, pedal box, engine, fuel tank, and differential all mocked up. These cars are judged in a series of static and dynamic events.
Measuring the traction limits and suspension forces of. Fsae lincoln will likely see 80 international student teams while fsae michigan accepts 120, all vying for that first place trophy. Dec 29, 2011 adamscar and the baja and formula sae templates allow students to rapidly create a full dynamic model of their student competition vehicle and simulate complex dynamic events. Design of a suspension system for a formula student. This enables the drivers to have good control of the car. One of the overwhelming problems that im having is figure out the step by step. After analysis and optimization of the geometry the entire system is designed in solidworks. Figure 1 2001 uwam chassis converted to electric power using a conventional inboard engine. A basic description of each dynamic parameter is included in appendix a. Using the design and completed parts from the 2009 fsae racecar, the mqp group from this year completed the fsae racecar. Design of a carbon fiber suspension system for fsae applications. The suspension system is one of the most important systems to consider when designing a fsae car. Introduction to formula sae suspension and frame design edmund f. Based on the assumption that all of the cars dynamic properties act as continuous functions of many parameters, the goal is to tune the car to operate at both extremes of the desired performance.
Design of a formula student race car springdamper system. Pdf design of the wufr19 fsae suspension semantic scholar. This article deals with design of formula sae suspension by. According to the rules of fsae rule book 20172018, rule t6. Also required for assembly is the thrust washers and bearings, which can mostly be purchased as catalog items see the m021dhu general fact pdf file and the 012000 general fact pdf file, as well as journal pins, and drop pins. These forces have been calculated for all the links of a double wishbone suspension geometry. Optimization of suspension characteristic of a pushrod actuated suspension system of an fsae car 74 form the programming, the sampling points coordinates for the surface is collected as shown in fig 3. There has been a slight confusion on using the sae. Fsae is a students engineering competition where student teams from around the world design, build, test, and race a smallscale formula style racing car. Reducing weight while maintaining structural integrity is one of the key challenges formula sae teams face as they try and design the suspension of the formula car. The purpose of this paper is to present experimental data on designing and optimizing a carbon fiber suspension system for formula cars. Jan 12, 2019 fsae suspension design pdf hello forum. The main subject of this report is the design of a springdamper system for the ure06. Chapter 3 documents the findings of the 2008 vehicle analysis.
Fsae suspension free download as powerpoint presentation. Open the fsae front suspension assembly by clicking file openassembly. Design and optimization of a formula sae vehicle a major qualifying project submitted to the faculty of. Nov 21, 2011 a quick video of the mtsu fsae suspension setup that i designed. Using the special fsae database with adams car msc software. The formula sae series competitions challenge teams of university undergraduate and graduate students to conceive. Steering system and suspension design for 2005 formula. The unequal aarms with tierod on front and rear suspension are detailed.
Press question mark to learn the rest of the keyboard shortcuts. Msc simcompanion using the special fsae database with md. Scribd is the worlds largest social reading and publishing site. Formula sae interchangeable independent rear suspension. Formula sae and formula student are collegiate engineering competitions with over 500 participating schools that challenge teams of students press j to jump to the feed. How much thought goes into your suspension geometry. The pins can be manufactured elsewhere and cost outlined as per the sae competition rules. Redesign of an fsae race cars steering and suspension. First, the working principle of a suspension system is explained and a list. Fsae as defined by sae see link 7 in appendix a the formula sae competition is held annually in two locations within north america.
Fsae rules state that cclips may not be used as positive locking mechanisms in the bump suspension system 1. Suspension, steering and drivetrain components are designed to be easily replaceable on the track with only basic tools. At the end of the year the team was unable to complete the fabrication of the 2009 fsae racecar. For tires to have optimum grip even in any position, we focused on minimizing camber change in negative direction with bound and rebound4. Camber is the angle the wheel leans in the front view, and affects cornering dynamics by adding a trust vector inward our outward of the turn. Introduction to formula sae suspension and frame design. In 2009, the wpi fsae team designed and began manufacturing a racecar for the 2009 formula sae competition.
A flow chart of the feedback loop that guides the suspension point design iteration used to meet the performance requirements of the suspension system. Design and optimization of the steering system of a. Please let us know if you have any questions and we will be clear up any problemsconcerns. The suspension system must therefore keep the largest contact tire patch at all times. Change the units to inches, pounds mass, and pounds force by going to settingsunits. Competition points rules the design of the whole fsae car is regulated by the fsae rules that exists to maximize the safety of the vehicle not only for the driver but for the pedestrians as well. This is an official page of formula sae, a program of sae international. Formula u chassis and suspension university of utah. B if you have experience with adamscar, you may be able to follow these more concise steps.
Teams spend 812 months designing, building, and preparing their vehicles for a competition. Once a decision has been made about these basic parameters, the suspension must be modeled to obtain the desired effects. Mac pherson front suspension in this case, normally, positive camber angle is very low and. Design of a carbon fiber suspension system for fsae. The car currently features a solid rear axle, and the task of converting it to incorporate an interchangeable rear suspension has been undertaken in order to. After rules analysis, which limits the suspension a minimum travel and wheelbase, project targets were defined, than a benchmarking was made on top teams. Introduction the suspension system is one of the most important systems to consider when designing a fsae car. In past years, the team has implemented two different types of steering systems, both with little success.
Values specific to the 2006 mracing fsae vehicle have been excluded from this report to protect the competitive interests of the team. There may be significant differences in dynamic tuning parameters for different fsae packages. Steering system design for an fsae car illinois institute of technology 9 2016 endurance event 300 fuel economy event 100 total 1,000 table 1. The washer between the nut and the bearing is therefore enlarged to act as a positive locking mechanism. Redesign of an fsae race cars steering and suspension system. The load paths and fbd have been drawn and axial stress in the all the linkages. Through baseline testing and component evaluations, systems of the car were identified as areas that reduced performance and prohibited predictable vehicle dynamics. Part list for an fsae suspension and steering system. How to design suspension mounting points for formula sae car. Pdf in this work, we presented in detail the design procedure of the front double aarm push rod suspension system for a formula student race.
Double wishbone front suspension in such suspension, camber is positive and about 1 degree. The default units for the fsae model are millimeter, kilogram, and newtons. This paper proposes a procedure which involves kinematic and dynamic analysis followed by vibration analysis for the design of a double aarm pushrod suspension system. Msc simcompanion using the special fsae database with adams car.
A thorough analysis of 2004 usq racer car has been included in order to. Redesign of an fsae race car s steering and suspension system. Design braking, steering and suspension systems for a formula sae competition that will provide effective vehicle control. Introduction he steering system of a formula sae car is of the utmost importance as it has to have a good reaction to all turns and corners at the event. Bajafsae templates half car models user guide introduction multibody dynamics is a powerful tool that can be used in the development of the vehicle systems like the suspensions, steering systems and the brake systems. Once files have been uploaded to our system, change the order of your pdf documents. Cite this article anshul dhakar and rishav ranjan, force calculation in. The suspension dynamics and stiffness can be tuned through. The goal for this project was to design a steering system for the 2006 fsae car to address all the shortcomings of previous designs, yet retain the low cost, manufacturability, and low weight. One effective strategy for tuning a formula sae racecar is the continuous function approach.
Below is a breakdown of what each website is for and the information that is required on each. Design of the wufr19 fsae suspension semantic scholar. As a result a close to ultimate set up could be achieved for the front suspension given cost, rule and time constraints. In this report, the overall design process for a formula sae. Salinas university of missouri rolla abstract this paper is an introduction to formula sae fsae suspension and frame design based on the experience of the design team at umrolla. Formula sae challenges students to conceive, design, fabricate, and compete with small formulastyle racing cars. The car is evaluated in automotive design and performance through a series of static and dynamic events which focus on safety, manufacturability and of. The price you see is the price per each titanium stud. Suspension for suspension design, we used double wishbone system that has low camber change for front and rear side. Fsae spec files current news rcv performance products specializes in industry leading quality parts for countless motorsports applications from ultra4 race cars, desert cars, pro4 trucks, to jeeps, toyotas, utvs, and rock bouncers. The cars are judged, by industry specialists, on a number of criteria in different typologies of events, both statics and dynamics. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Once you merge pdfs, you can send them directly to your email or download the file to our computer and view. Freebody diagram of the tire forces green and suspension member forces orange.
Pdf formula sae chassis design to improve suspension tuning. Design of suspension system for formula student race car. Before the modeling can begin, the ball joint locations, inner control arm pivot points, and track width must be known. Analysis of wishbones, upright, fsae, tiredata, etc. Pdf merge combine pdf files free tool to merge pdf online. The images following fig 5 and fig 6 illustrate the front end suspension packaging. The rear frame that holds the powertrain, drivetrain and suspension will be shortened to reduce total mass and yaw inertia of the car. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users.
The car must be equipped with a fully operational suspension system with shock absorbers. Not only was a great deal of fea testing done, but a test stand was developed to apply a constant cyclical load to verify fatigue would not be a problem over the life of an fsae car. Optimization of double wishbone suspension system with. Adamscar and the baja and formula sae templates allow students to rapidly create a full dynamic model of their student competition vehicle and. The engine was paired with a custom pneumatic shift transmission to allow an automatic shift mode. This steering system had to also comply with all aspects section 3.
The suspension solutions design team has completely designed built and tested an independent rear suspension system for the 2008 fsae car. Our suspension geometry was a huge project with design spanning the better part of august to february or more add some summer sessions, late tweaking well into march april. Index terms steering, fsae, ackermann, lotus shark, solidworks i. Pdf on oct 25, 2016, lucas iensen bortoluzzi and others published formula sae chassis design to improve suspension tuning find, read and cite all the. It started with optimization of the track and wheelbase based on previous autox courses at michigan. The 2002 lawrence technological universities formula sae car will be used as an example throughout this paper.
Fsae steering system 2 abstract executive summary the uc davis formula sae team has designed a car to compete in the 2006 formula sae west competition on june 14th. Suspension and steering design are driven by several key factors, such as camber, kingpin inclination, castor, scrub radius, and wheel offset, and mechanical trail. The reason carbon fiber suspensions are favored over the current steel suspensions is because of they can reduce the weight of the suspension by 50%. Our groups work on the powertrain for the 201011 fsae car was divided into 3 major project aspects, with some additional breakdowns under them. Also shown on this diagram are the angles of the front wheels required to. These systems were the cars rear suspension, component. Cooling the wiring harness for the 201011 car will be taken on by william jay kistler as an honors. The final tyre selection was a compromise of several factors due to the unique nature of the formula sae vehicle. All accelerations, either lateral or longitudinal, must be put to the ground through the tires, which are held in contact with the ground by the suspension system. Measuring the traction limits and suspension forces of a formula sae.
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