Suspension linkage design software

Front and rear suspension analysis simulation software program. Like the front system, the vertical separation of the links resists the drive and braking torsion. Here we design a completely new shock linkage from the ground up. Suspension linkage conflict found another pair, but did not go further, you may know why these other faces are were not parallel, but not having built the model, you have a big head start on me. Linkage x3 is a powerful and easytouse but richfeatured 2d bike suspension analysis software for windows systems suspension analysis software for windows. Since very few people actually analyze suspension traits outside of the. Linkage mechanism designer and simulator tutorial 1 youtube. The opening motion is comparatively weak, but this is unimportant for normal feeding. This is a custom suspension linkage with a changed shock mount setup that i designed and manufactured for my own and later also for my sisters 2017 and 2018 yt tues dh bikes. By the way, this new suspension design by specialized is pretty impressive, with nice technical solutions. Typical rear suspension screen, here analyzing an angled 4 link rear suspension and driveshaft movement and u joint angles. As a result, they can make suspension softer at the beginning of the stroke for small bump sensitivity and then firmer toward the end of its travel. The geometric design of these systems relies on modern computer aided design software.

Watts linkage can also be used to prevent axle movement in the longitudinal direction of the car. If you press this button in edit mode its easy to compare the setup values of each model. Our goal is to provide customers with the most advanced suspension setups that maximize stability, comfort, and reliability, allowing them to enjoy their time riding or racing. The number of operations needed to add a link and get it. Feb 05, 2014 here we design a completely new shock linkage from the ground up. Wheel camber is zero irrespective if the vehicle is stationary or moving round a bend in the road. Funky 4 link design please note, this list is based on contributions by many people. Linkage personal is our suspension analysis software offered for the bikeenthusiasts seeking to compare different designs and get knowledge about bike suspensions or create own projects.

The study presents the main steeps and some results of a design, analysis and optimization process of a complex articulated mechanism required for a car suspension and steering. Through our research and development the performance advantages and disadvantages of each stock linkage model are established and many linkages are derived. Adams helps engineers to study the dynamics of moving parts, how loads and forces are distributed throughout mechanical systems, and to improve and optimize the performance of their products. A linkage with at least one link that moves in threedimensional space is called a spatial linkage. As used on the pre 84 chevrolet corvette with the drive shaft acting as upper lateral link and a leaf spring and bmw e36 with bespoke lateral links and coil springs trailing arm, upper and lower lateral links, toe control link rear as used on the honda integra type r. Adams is the most widely used multibody dynamics and motion analysis software in the world. Suspension linkage design from concept to reality youtube. They come with various simulations, component libraries, modeling tools, etc.

Upper lateral link, lower reversed aarm, twin trailing links rear the classis 60s sports and racing car rear suspension. I have chosen the position for the rear dumper, chosen the rear dumper but now i need the linkage designed. Chassis master software tim mcamis performance parts. Our allnew 4 link suspension simulation software is an amazing new setup tool for your program. It is a great timesaver compared to complex cad systems when it comes to refining the suspension, evaluating ideas or. Depending on the type of racing for race cars, the road surface and evolution of the vehicles, the suspension is designed to accommodate multiple requirements. In fact, the suspension s geometry needs to be checked with design analysis software. The classis 60s sports and racing car rear suspension.

Linkage design software to use to determine the kinematics and. Autodesk alias design, part of the autodesk solution for digital prototyping, is the base level alias 3d design software for industrial designers who control the creative product design process. Linkagedesigner is a mathematica application package for virtual prototyping of linkages. Previously i had begun this on another board and it got too large. Jun 27, 2018 a linkage driven single pivot design allows designers to manipulate leverage ratios. This paper proposes an optimal method for the air suspension linkages design, which takes multiple critical geometric dimensions of the linkage as design variables, takes the maximum stress of critical areas in certain parts and the total mass of the assembly as objective functions, normalizes those. Regardless of the type of vehicle you are building we have the products and free information that will save you time and money. Check out the design and flow of his rolling ball sculpture youtube. Over the years, our industry has seen free suspension design software come and go. If you are having problems with the download link try right clicking on the link and selecting save target as. Suspension linkage an overview sciencedirect topics. A computational design tool for compliant mechanisms.

A linkagedriven single pivot design still uses an uninterrupted swingarm. Andre from portugal is back with a new video about the new specialized demo, 2020 model. A variation on the radius arm suspension is the parallel four link, shown in the figure above. Abstract the paper explains design methodology and flow in a suspension is one of the most vital subsystems of an automobile.

The suspension analyzer does a complete 3d suspension analysis, including bump steer, ackerman, caster gain, anti dive, tire scrub, camber gain and much more. New suspension options like watts link instead of a panhard bar, and solid axle with leaf springs. It is designed to analyze, synthesize and simulate linkages with serial chain, tree and graph structures. Software for suspension analysis automotive suspension. Linkage mechanism designer by using linkage software duration. Upper lateral link, lower parallel links, twin trailing link rear a variation of the reversed lower aarm style. Linkage mechanism designer and simulator daves blog. The modern era in suspension design was initiated when yamaha announced their cantilever system, and employed just one suspension unit monoshock. Here is one of those questions that i wish i had a nickel for every time someone asked about it.

Due to the high swingarm pivot i had to have an idler pulley to align the chain pull force to get a proper amount of antisquat. They allow changing colors, frame size, designing pcbs, and much more functionalities. Design, analysis and optimization of suspension system for. When building a 4 link suspension, the lengths of the links, their positioning, and the angles at which they are mounted, will all determine how the suspension affects the vehicle chassis under acceleration, braking, and cornering. The full installation zipped folder is a zipped folder, which has to be unzipped and installed. Design, analysis and optimization of suspension system for an off road car. Articles and illustrations on motorcycles and racing in general. In fact, most offroad community forums share links to calculators that do not work or redirect you to an undesired webpage. Fast and reliable solver successfully validated against leading cad software packages and test data collected at automotive labs. Enter the dimensions of your 4 link system and it will automatically calculate wheelbase change, suspension cage index angle, and shock length throughout the suspension travel. The file for the tension link bike has been uploaded to the linkage database so people can download it and modify it as they wish all of the critical frame dimensions and suspension design parameters can be viewed in the linkage program. Just lkike snowboarding, you have to learn on the bunny slope before you ride extreme slopes, and you must learn the basics of linkage design before you attempt to zoom from the top.

Linkage is a computer aided design program used for quick prototyping of mechanical linkages. With a normal full suspension bike the back wheel moves in a very tight arc shape. The calculations vary from motion ratios, to spring stiffness, to wheel loads. We have a trial version of our mechanism generator 2. Mechgen 2 reads five task positions of a moving part in solidworks and generates a set of linkages that approximate the positions within specified tolerances. Fortunately, for us mere mortal linkage designers, there is powerful linkage design software that seemlessly links to many solid modelling programs. This application involves two watts linkages on each side of the axle, mounted parallel to the driving direction, but just a single 4bar linkage is more common in racing suspension systems. Jan 04, 2012 the computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The basics of antisquat, antidive, and roll center.

This software is specifically designed with a userfriendly interface that makes the process of computer aided suspension design and analysis much faster and more convenient. Leverage and linkages once upon a time in the distant past about 1973, motorcycle rear suspensions were quite similar to the front. Lower lateral link, upper reversed aarm, twin trailing links rear. The linkage fits for all sizes of the 2015 to 2018 tues al. Ive used algodoo for very occasional linkage design. The four link rear suspension shown in figure 4 three link front left and four link rear right uses four primary links and no secondary links. Interactive 3d visualizations inspecting and modifying suspension design is easy. This major version number has been around since 20 but the software is always improving, so now you have almost all the bike suspension systems available including special rail systems or variations of the macpherson strut and as complex as 6bar suspension systems. Hygear suspension specializes in the performance and handling of recreational vehicle suspension systems. I would now have a pile of nickels, at least enough to buy a gallon of gas. Mechanical all wheel steering with linkage software duration. The last option, and most commonly used, is a link controlled beam axle suspension design such as the one shown in figure 1 typical rock crawling obstacle. The application is designed primaly to support the design of multybody mechanisms. Motochassis is for those interested in motorcycle handling and chassis.

As such, it appears on your registry and it is accessed via the start menu. Because internet explorers maximum url length is shorter than other browsers, your project cannot be saved properly in this browser. Is any standalone 2d program able to simulate mechanisms motion. Motochassis introduction motochassis by tony foale. The 5bar linkage is an adapted mechanical linkage used on bicycles. The shock linkage on this design is very easy to modify to change the suspension characteristics. The skeletons of robotic systems are examples of spatial linkages.

Optimumkinematics developed by optimumg engineers is a suspension and design analysis software. Hey all id like to do a motion study with this linkage design. Have you ever wondered what kind of mechanism causes the wind shield wiper on the front widow of car to oscillate figure 51a. A linkagedriven single pivot design allows designers to manipulate leverage ratios. Lower lateral link, upper reversed aarm, twin trailing links rear a variation on the above. Track all chassis information including corner weights and center of gravity. The program will work you through a stepbystep process of picking key. The drive axle, steering linkage, shock, and spring all fight to occupy the same small space. Linkage kinematics basics of antisquat and pedal kickback. The optimized values of spring stiffness, damping coefficient of sprung and unsprung masses are coupled with the geometry design and is analyzed in lotus suspension analyser to get various values of the suspension geometry. To achieve this, they use a fourbar linkage in their jaws to enable the muscle force to obtain a significant mechanical advantage when the jaws are closing, as shown below.

Most road bikes have about mm rear wheel travel, so to get that with different average ratios you need shocks with different amount of shaft travel. When duplicate and compare is active this button switches the order of the front and rear models. The ultimate guide to mountain bike rear suspension systems. This system is used for its superior ability to articulate without having components bind, and its relative ease of design and manufacture. Welcome to this is the source for tech tips, blue prints, drawings and plans for the do it yourself automotive hobbyist. Using the symbolic calculation capabilities of mathematica, it supports fully parametrized linkage. Linkage professional is our fullfeatured 2d suspension analysis software emphasizing on mountain bike simulation but also usable for motorbike suspension simulation or arbitrary linkage simulation, ranging from single swingarm to 6bar linkages. Complete graphs and reports are included, and several new. Both versions of the software provide the same features.

Design, analysis and optimization of suspension system for an. Suspension geometry an overview sciencedirect topics. 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 the url. Vsusp no longer supports any version of internet explorer. A beginners guide to mountain bike suspension design. I have used few of these programs in anger, but had a play with many of them. Archimedes applied geometry to the study of the lever. It is the prime source for the book motorcycle handling and chassis design by tony foale and software packages for motorcycle suspension setup and analysis. Computer program to simulate and analyze rear suspension 4 link setups for instant center, pinion angle and driveshaft angle change, antisquat %, and more for drag racing. There are dozens of variations of suspension types used on race and passenger vehicles. How your bikes suspension design affects its performance on.

Design, motion, and analysis so you can work faster and smarter. There is no comparison to any other 4 link software available. The software may also help you making decisions before buying your new bike or components. However, thanks to the constant technological advancements, the multi link suspension has. The rg3 linkage is ready to install with all necessary bearings and seals. When aarm suspension first appeared, it offered a new challenge to aftermarket suspension companies because there were no simple ways to lift the vehicle more than an inch or two.

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. They provide the best user interface to perform bike design smoothly and efficiently. I discuss all of the added benefits to this linkage and why it should work better than our old linkages. The 4 link calculator lets you input, view, save, analyze and compare your 4 link rear suspension geometry. Nov 11, 2018 antonio osunas excellent blog where he compares and discusses various rear suspension linkage designs, the leverage curves, antirise, anti squat, pedal kickback and forces data associated with them and their characeristics in depth over many bikes and suspension designs.

Used by many of the best teams in drag racing, chassis master is easy to set up and input information. If one wheel moves over a hump or dip in the road then the axle will tilt causing both wheels to become cambered. Aftermarket manufacturers make kits that retrofit an existing radius arm suspension to a parallel four link design and use coil springs and a track bar to center the axle. The mechanism, shown in figure 51b, transforms the rotary motion of the motor into an oscillating motion of the windshield wiper. Creating a custom long travel suspension by steven olsewski september 15, 2016 a good suspension system is key in any type of. The triangular layout of the top links resists sideways motion, and the lower links resist thrust. Basically i know nothing about the rear suspension linkage.

If we cant improve on a stock linkage model we dont develop it. Like the singlepivot design, the rear axle is connected to the main pivot with a solid swingarm, but in this case, a linkage is added between the swingarm and the shock allowing the leverageratio curve to be adjusted. Of course, different linkage designs will have different degrees of. Bike design software enables creating bike designs with great ease. Design of three and four link suspensions for off road use. Looking for downloadable 3d printing models, designs, and cad files. Calculates all possible instant center locations plus percentage of rise and squat. You enter heights above the ground and distance ahead of the front axle for up to 6 holes for all 4 brackets for your car, or any number of cars. Intuitive userfriendly layout features three sections. Five link coil spring leading and trailing arm watt linkage and panhard rod nondrive axle rear suspension figure 10. Nov 04, 20 horst link four bar suspension is a fully independent design which features a chainstay pivot located in front of the rear wheel dropout the horst link, a pivot just behind the bottom bracket, and one at the top of the seat stay which is connected to a leveraged shock linkage. Optimization study of a car suspensionsteering linkage. Suspension geometry characteristics of a live axle are as follows 1.

Amazing mechanical linkages and the software to design them. Producing quality computer tools for racers and engine builders since 1986. Horst link four bar suspension is a fully independent design which features a chainstay pivot located in front of the rear wheel dropout the horst link, a pivot just behind the bottom bracket, and one at the top of the seat stay which is connected to a leveraged shock linkage. Jan 26, 2018 46 thoughts on amazing mechanical linkages and the software to design. 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. Linkage mechanism designer and simulator tutorial 1 david rector.