Also shown on this diagram are the angles of the front wheels. Design of a suspension system for a formula student. 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. At the end of the year the team was unable to complete the fabrication of the 2009 fsae racecar. A formula student race car is a simplified version of formula one race car designed and. Higher frequencies make less suspension go for a given track, permitting lower ride statures, and. Technical note on design of suspension parameters for fsae. Testing and tuning a formula sae racecar this paper presents a framework for testing and tuning a formula sae racecar.
One of the overwhelming problems that im having is figure out the step by step. However, note that the service is only free if youre dealing with 5mb or under, which is comparably low. Combining the standard impact attenuator peak load of 95 kn with the. Therefore, the papers prime focus is to design and optimize a. Design of suspension system for formula student race car core. Design and optimization of formula sae suspension system. This is an official page of formula sae, a program of sae international. 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. The suspension system must therefore keep the largest contact tire patch at all times. Formula sae interchangeable independent rear suspension. The track and center of gravity of the vehicle must combine to provide adequate. Fsae suspension and frame design based on the experience of the design team at umrolla. Check the fsae online website to verify the current version. Please furnish your ad as a pdf file high resolutioncmyk flattendedembed all fonts.
The suspension system is one of the most important systems to consider when designing a fsae car. Fsae design event scoring some insight into the process the first thing to understand is that the design events are scored according to the criteria. Baja fsae 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. Open up pdf merge, and youll see a simple window with bars for dragging and dropping several pdf files. Report of student formula project shigenori hashida tohoku university formula team abstract in 20, tohoku university took part in student formula japan for the first time and entered the electric car class, which is established this year. These systems were the cars rear suspension, component packagingergonomics, continuously variable transmission cvt, air intake, and exhaust. Introduction to formula sae suspension and frame design edmund f. Design and optimization of the steering system of a. This must to include oneinch travel in ounce and onej inch travel in rebound with the driver seated.
The suspension on a fsae car is two springmassdamper systems in series see figure 1. 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. Design of formula sae suspension theory in practice. Values specific to the 2006 mracing fsae vehicle have been excluded from this report to protect the competitive interests of the team. Combining 10 team members from electrical, mechanical and. Optimization of double wishbone suspension system with. 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. Design of the wufr19 fsae suspension semantic scholar. Technical note on design of suspension parameters for fsae vehicle o. First thing is that i got the cad modeling of the torsen model that is sold to fsae teams and i have verified that the large gears attached to the semiaxles are helical gears about 48 mm diameter with 15 teeth.
Suchomel culs prague, technical faculty, department of vehicles and ground transport, prague, czech republic b. The suspension on a fsae car is two springmassdamper systems. Perpendicular distance between tk and the line joining uk and lk dp. 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. Pdf cornell design anal testing fsae sagar jadhav academia.
The suspension solutions design team has completely designed built and tested an independent rear suspension system for the 2008 fsae car. Generally, in race a car, double wishbone suspension with either pullrod or. 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 car. The software provides a simple merge files option to combine them. To help with this process, multiple programs and methods will be used. Ruzicka university of technology brno, faculty of mechanical engineering, institute of machine and industrial design, brno, czech republic. The load paths and fbd have been drawn and axial stress in the all the linkages. The stability of the frame is quintessential for the vehicles optimum performance. Through a decade of race engineering, dartmouth formula racing has found that effective testing and tuning is essential for achieving peak vehicle performance. The suspension geometry of a standard fsae race car has been used for the calculation of the forces. Fsae cars, parts designed to withstand both individual and combined 3. Full vehicle dynamics model of a formula sae racecar using adamscar.
This paper is an introduction to formula sae fsae suspension and frame design based on the experience of the design team at umrolla. But in the past we have encountered design reports and onsite explanat ion that seems to be unaware of this. In this episode, i summarize the design of the suspension. Combining the standard impact attenuator peak load of 95 kn with the failure load for. Design and optimization of a fsae vehicle a major qualifying project report.
A guide from jim kasprzak introduction i believe dampers are the most misunderstood components on a race car. In 2009, the wpi fsae team designed and began manufacturing a racecar for the 2009 formula sae competition. This article deals with design of formula sae suspension by considering various loads and. Part list for an fsae suspension and steering system. Pdf formula sae chassis design to improve suspension tuning. To check to see if the 5 hz frequency is springs suspension springs and torsion springs. The 20 fsae mqp team performed baseline testing and evaluation of the 2012 vehicle to. Index terms steering, fsae, ackermann, lotus shark, solidworks i. Formula sae challenges students to conceive, design, fabricate, and compete with small formulastyle racing cars. Employing research and designs from previous years cars, the suspension will be designed using the iterative design process. The autocross course will combine the performance features of acceleration. Analysis of wishbones, upright, fsae, tiredata, etc.
After analysis and optimization of the geometry the entire system is designed in solidworks. The geometry of the front suspension was mostly determined by the requirements on roll centre location, track width and steering geometry. Problem statement suspension components on any racecar must maintain a balance between weight, stiffness, strength, cost and manufacturability. Combining raised roll centres with lower chassis pickup points produces the same results as. Formula sae fsae is a competition organized by the society of. Tire data has been used to find out the friction coefficient at the contact patch which varies to the normal. I am designing a differential for my universitys fsae vehicle and have some doubts. The car uses a lot of parts from an old vw beetle which puts a limit on how good the vehicle dynamics may be in.
In order to reach this purpose, in this paper, a passive double wishbone suspension system with variable camber angle is. The following report from reid olsen, eric melchiori and andrew bookholt of composite suspension solutions shows how that comparison was conducted and its results. Redesign of an fsae race cars steering and suspension system. After rules analysis, which limits the suspension a minimum travel and wheelbase, project targets were defined, than a benchmarking was made on top teams. Using the special fsae database with adams car msc software. Introduction to formula sae suspension and frame design. 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. Redesign of an fsae race cars steering and suspension. Design of a suspension for a formula student race car. Fsae is the sole society of association executives in the state of florida.
Design, analysis and testing of a formula sae car chassis. There are various geometries that suspension systems can take in formula one cars. Pdf fsae suspension finalpresentation mohamed ashraf. Cite this article anshul dhakar and rishav ranjan, force calculation in upright of a fsae race car. After i rode his 2011 honda 450, i knew i was missing out. In other words, its a line joining the upper and the lower ball joint of. I had heard about merge racing technologies from my good buddy, jimmy albertson. Pdf design of suspension system for formula student race car. The target values for concerning and braking have been set according to the tracks present in the fsae international events. 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. The unequal aarms with tierod on front and rear suspension are detailed. The fsae competition is two oppositely opposed corners of the car. These forces have been calculated for all the links of a double wishbone suspension geometry.