Race car suspension setup faster lap times through better suspension tuning and development see our new web site on suspension set up. Typical rear suspension screen, here analyzing an angled 4 link rear suspension and driveshaft movement and u joint angles. Calculate and compare the geometry setup of 5 motorcycles. First, lets start by looking at the suspension movement and the tools available to make your life easier. From creating an accurate model of the car and every nut and bolt in it in 3d, to the design and simulation of critical aspects such as the chassis and suspension, software programs have become commonplace to amateur car design. Jul 23, 2017 smitty describes the principles of suspension design. Bike design software enables creating bike designs with great ease. We also explain the major differences between our suspension tuning philosophy and design versus other suspension systems offered for the lexus rcf, isf, is, and rc models i.
It is also intended for a screen resolution of 1024x768 pixels or greater. This paper presents the procedure of design and analysis both kinematic and dynamic of the front double aarm pushrod suspension system for a formula student race car. The old model remains at the back of the drawing, you can use it as a guide when making adjustments to the layout or visually compare how the changes will perform when the suspension is in motion. The suspension design process is an important point in. Stop guessing and start winning learn the facts of rear suspension geometry with this informative cdrom computer software. Ease for the driver at 1 it must have shock absorbers. This page explains from a technical perspective our suspension performance and design principles that make this suspension the best suspension available for these cars. Stop guessing and start winning learn the facts of front suspension geometry with this informative cdrom computer software. Yes, the graphs dont work in internet explorer download firefox already, all four of you who still use ie. Suspension travel and spring stiffness, are totally interdependent. Initially the yamaha version was designed for motocross to extend wheel movement, and this led to a wide variety of alternative rear suspension systems by several manufacturers.
I used an older version of this software to design my formula sae cars suspension. Smitty describes the principles of suspension design. Lister storm lmp designer reveals his trade secrets for suspension design. Newer commercial software has kinematic features built in that simulate road conditions. For many applications, a 100% antidive front end may be a desirable starting point or default setting, especially if the 4link. Design, analysis, and verification of an openwheeled formulastyle race car suspension system.
Drag racing analyzer pro practice tree rotating inertia calculator drag race. If other settings are used it may still run but not at its optimum. These characteristics make the vehicle neutral and keep the power and suspension dynamics independent. Race car suspension setup smithees race car technologies. Track all chassis information including corner weights and center of gravity.
Now you can get all the racewise chassis school material in an easytouse software program for your home computer. Bendtech pro was introduced with our assembly interface which has taken the market by storm. This means that the software is easy to use with a practical. What is the best free cad software for racecar engineering. Jerry bickel race cars gives racers the technology to win. Not have sufficient suspension travel or free movement suspension must have no binding. Here are the software programs that are most appropriatefor the circle track racer. The suspension analyzer does a complete 3d suspension analysis, including bump steer, ackerman, caster gain, anti dive, tire scrub, camber gain and much more.
Design, analysis, and verification of an openwheeled. Suspension systems with 100% antisquat values will have no effect on the chassis under braking or acceleration. There are a number of software to design a suspension system. This program is provided free of charge for personal use in the assisting of suspension calculations. Analyze parameters that effect steering and handling of the motorcycle. Few are following 1 solid worksfor static design, can calculate the dimension of members a arms springs free length, joints positions and orientations. Stars pro provides a convenient way to record suspension jig lengths, adjustmentresult ratios one turn of the left front pushrod adjuster equals 5mm ride height change and 0. Calculates all possible instant center locations plus percentage of rise and squat. This paper aims at introducing the development of a new. Design of student formula race car chassis article pdf available in international journal of science and research ijsr 44. Software for auto racing and high performance cars data acquisition systems new and used engineering services and live seminars on performance and racing technology all types of tech info on racecar engines, chassis and suspension setup for road. Racewise rwfront front suspension geometry software. A racing kart has a solid suspension, but it does roll to a degree because of the tire spring rate. Let me preface this with saying im interested specifically in chassis suspension design so my comments are limited to that portion of the book.
Easy and effective virtual prototyping of vehicle suspensions. Of course, since the title is about suspension disign, thats pretty much the whole book. Software for suspension design automotive suspension. There is no comparison to any other 4link software available. Candidate for bachelor of science and renee crown university honors spring 2017. Today we are looking at onshape, what i consider to be the best free cad software available for designing engineering components. I used an older version of this software to design my formula sae car s suspension. Windows vista 32bit and 64bit, windows 7 32bit and 64bit, windows 8 and 8. What is best software for designing suspension systems. After some research, we found a good and reliable suspension calculator that provides 4 link including. Racewise provides the technical understanding of suspension and tire performance that racers must have in order to make no guesswork decisions. If you want to use this calculator ad free, enable unlimited private models, enable more reporting options and work offline using the android or ipad apps, please. We have the ability to gather the geometry from your car and do a complete analysis or perform analysis of a local area such as a wing or suspension system.
Autowares racing and performance tech site software for auto racing and high performance cars data acquisition systems new and used engineering services and live seminars on performance and racing technology all types of tech info on racecar engines, chassis and suspension setup for road. Easily and effectively create vehicle suspension designs, that can be used to help make design decisions at the initial concept stage up to and. We also have programs to help you with suspension setup and other components on your vehicles. Motorcycle setup software the modern era in suspension design was initiated when yamaha announced their cantilever system, and employed just one suspension unit monoshock. A good design of the main parameters, in terms of static and dynamic angles in bump and steer, is the basis of a successful racecar quite often. Motospec is software for tuning motorcycle suspension and chassis geometry. We spent countless hours observing and asking questions to our customers on how they would like to see pro work. There are 10 key factors to be considered when designing a suspension system, whether its for a single seater or sports prototype, and part of the skill of the designer lies in reconciling the conflicts between them. This is the fifth in the video series developed for ucis racecar engineering program. In fact it allows to analyze the geometry of the motorbike, from the calculation of the center of gravity to that of the most significant technical parameters, and quickly to study the changes to vary.
The calculations vary from motion ratios, to spring stiffness, to wheel loads. Links may be made to the site, but the product may not be redistributed in any way other than by direct download from. Complete graphs and reports are included, and several new features not found in other programs. This program has been designed to run on a pc running windows xp or a newer windowsbased operating system. You can also use this function to compare front and rear suspension although be careful as only the model at the front of the drawing is saved within.
Design and optimization of formula sae suspension system. We ship your design directly to you and you apply it to your car, vehicle, or trailer youself. Car design tools for chassis, suspension, aerodynamics. Susprog3d is a complete 3d software package for the design, setup, evaluation and visualization of race and road car suspension systems now with support for 30 different suspension types. Suspension design for other vehicles is similar, though the process may not be as well established. Apr 19, 2005 here are the software programs that are most appropriatefor the circle track racer. The classis 60s sports and racing car rear suspension. 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. Ultra4 started on a bet when rock crawlers met on a dry lake bed in 2007 to see if they could run all the hammers trails in johnson valley in a single day. The majority of our work has been in the drag racing industry but simulation covers all racing industries in particular aerodynamic cfd work. In the racecar design process the definition of suspension type and geometry is an important stage.
Drawing templates, 3d cad, fea, cfd, suspension geometry. The design teams in the many motorsport categories are constantly developing new solutions with one single goal in mind. The chassis movement control allows you to raise and lower the chassis and also rotate the chassis by moving the mouse or your finger side to side. Pdf 20020346 development of a new software for racecar.
Chassis master software leading drag racing chassis. Suspension design software is invaluable in car or truck design as it does the heavy lifting when it comes to the many iterations of manual calculation that are usually needed to find the ideal geometry. For windows 7, 8 and 10 with opengl see the faq for more details faq for more. Supact motorcycle geometry software is developed in a racing environment.
The onestop package of comprehensive fea and allround design capability make it an ideal tool for the race team to be used to develop components of the race car and thus the chassis. Our weight transfer worksheet is explained in detail. Weve got the most unique online racing graphics designer on the net. Motorbike design software to analyze and to design chassis.
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. The best chassis shop for drag racing books and drag racing software to help with your race car setup and suspension tunning. Elmer is a free open source multiphysical simulation software. Development of a new software for racecar suspension. Aug 29, 2007 bottom line, suspension kinetic and kinematic design exist to control the distribution of load through the 4 wheels, minimize load variation, and control the wheels position in 5 degrees of freedom. Drag racing formula 1 racing indy car racing land speed record racing nostalgia drag racing race car insurance race tracks safety equipment speed equipment directory sports racing cars sprint car racing. For windows 7, 8 and 10 with opengl see the faq for more details faq for more details. Fullyfunctional free trial and chassis dimensions for most racing and motocross motorcycles. Useful suspension analysis can be done from a bottom up approach, in which individual parts of the suspension mechanism are defined, and then loads are applied, or top down, in which the suspension is abstracted out to an overall axle performance for a given load and slip ratio, or anywhere in between these two extremes. Some suspension design software packages provide 3d visualization of suspension geometry and movement, and enable the designer to change pickup points and other points in space before reanalyzing the design. Bottom line, suspension kinetic and kinematic design exist to control the distribution of load through the 4 wheels, minimize load variation, and control the wheels position in 5 degrees of freedom.
Both are really good, with the latter being very, very useful for designing your own race sports car suspension. A capstone project submitted in partial fulfillment of the requirements of the renee crown university honors program at syracuse university. If you purchase a new race car, or a car from another race team, the car will not be set up. Design of suspension system for formula student race car. Design, analysis, and verification of an openwheeled formula. Motorbike design is a software studied to help technicians and riders to analyze and to design the motorbike balance and the features of the rear suspension. Brenthel may have his mind made up as to what the best four wheel drive suspension design is but the debate rages on in the ultra4 racing series. The suspension calculator aims to help people who are building race cars perform suspension related calculations. Some software includes kinematic capabilities that simulate vehicle dynamics using the designed suspension. They allow changing colors, frame size, designing pcbs, and much more functionalities. Upper lateral link, lower parallel links, twin trailing link rear a variation of the reversed lower aarm style. The process entails selecting appropriate vehicle level targets. Nov 02, 2010 advanced race car chassis technology hp1562. It offers all the features of programs like solidworks, but is completely free of charge and can run in your browser, so no installation issues.
Complete graphs and reports are included, and several new. For the amateur car designer, there are many tools available today that make designing a car easier. Software for suspension analysis automotive suspension. Used by many of the best teams in drag racing, chassis master is easy to set up and input information. No part of the program or code shall be reproduced for commercial use. This is a webbased version slightly simplified of the excel spreadsheet i designed and used to work out all the various calculations needed to properly set up the car.
Over the years, our industry has seen free suspension design software come and go. Autocross to win dgs autocross secrets dynamics calculator. Lower lateral link, upper reversed aarm, twin trailing links rear a variation on the above. See all 15 photos roll center calculatorthis is a simple twodimensional front suspension layout program. We provide you with the online tools to create your own decals and vinyl wraps. And dont forget about engine analyzer our engine design. Free tools and software for race car, sports car and offroad vehicle design. Oct 06, 2014 race car design is one of the most fascinating and yet one of the most complex aspects of the racing world.
They come with various simulations, component libraries, modeling tools, etc. Todays racer and enthusiasts alike rely on the latest racing computer software for chassis setup, dyno simulations, race simulation, updating electronic systems and more. Suspension adjustments stars pro provides a convenient way to record suspension jig lengths, adjustmentresult ratios one turn of the left front pushrod adjuster equals 5mm ride height change and 0. Chassis design is a very black art, but most sources ive found still seem to suggest the following some maybe fact, some myth. Autowares racing and performance tech site software for auto racing and high performance cars data acquisition systems new and used engineering services and live seminars on performance and racing technology all types of tech info on racecar engines, chassis and suspension setup for road racing, oval track and drag racing, and general automotive technology. They provide the best user interface to perform bike design smoothly and efficiently. Autoware autoware inc front suspension geometry software. Automotive suspension design is an aspect of automotive engineering, concerned with designing the suspension for cars and trucks. Suspension key performance indicators kpi suspension. You can get a long way without knowing specific tire data, and design a suspension that wont screw ya, and is going to be tunable enough to get. Full vehicle version also includes push rod and pull rod springs for double a.
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