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This is a tool which shows how changing various geometries can affect things like bump steer, roll center, toe and caster angles. It also shows what you need to adjust in order to maintain or obtain desired toe and caster angles for a given car. This tool shows the correctly modelled suspension in real time as you make adjustments. It also saves your setup for future reference. This car is loos...

First glimpse of this WIP suspension/setup app. This allows users to visualize the effect setup changes have on various aspects of their car such as roll center, camber, caster, toe, bump steer, Ackerman etc This is all done in realtime on mobile devices and desktops. Graphs can be shown that help explain the shock spring force over the travel, you can also see how this is affected by shock pos...

The software now displays the measurements for various points as you adjust them. This makes it very intuitive and its clear to work out how you need to take measurements to get a chassis into the application to use it correctly. Again, everything is in real time so you can play with any compression of front/rear and see the effect on geometry. It will be possible to animate the bike with input...

I had a spare bit of time over the weekend due to rain etc so I added some controls to allow you to modify the geometry in a much simpler way than entering numbers. Here I imported a very low res image of the Yamaha M1 (circa 2006) and I replicate it by dragging the suspension components to fit. It generates the graphs etc, still all in realtime. Obviously this is using a very low resolution im...

Bit more work on the suspension/chassis design app. Improved rendering a bit, you can now drag/scale the bike with the mouse/mouse wheel. You can view it with the bike suspended in a fixed position or aligned with the floor. I have added some measurement displays. You can see live measurement data for wheelbase/trail here (with text but that is a little blurred on the video. Added sprockets/cha...

Version 2 is coming together nicely. This has much nicer controls and cleaner implementation of the maths. I will be making this available at some point. Currently has support for: Rear suspension types: Direct (mounted straight to frame and swingarm) Floating (typical dogbone/triangle setup like an R6) Floating with top shock mount on swingarm (like the Honda Pro-Link found on later fireblades...

So, as a bit of fun I added a sin wave terrain (low poly). Using a basic road setup here, its unwieldy :) Its quite a lot of fun though... Crash and burn at the end. Currently uses a 200bhp engine with 130NM torque, dry tarmac and slick tyre friction coefs so it is very lively.

Added a simulation mode you can "play". Uses the same calculations for suspension forces. This is on a flat terrain and shows the real time calculations and effects of anti-squat, wheel torque. It is a bit "grabby" as I am just using digital inputs :) i have another terrain with hills/jumps. Its hard :) I will upload a video of that as it does show more suspension movements. I will extend this ...

I have added the ability to run the bike on a "rolling road" to simulate it riding on a bumpy road. This shows any calculated information as you can see the trail markers, squat lines etc that move in relation to the bike configuration. Currently this simply follows a sin wave road. You can see the suspension systems working through its movements in rear time. Eventually I will expand this to g...

System now calculates the squat parameters. Takes into account sprockets which can be setup for various chain sizes (520,530 etc) and tooth counts.

Geometry sandbox for motorcycles. You can specify any dimensions for suspension components and have a second view where you modify them for analysis. This can output graphs for shock compressions, linkage ratios etc Shows paths of shock mounts. Save/Load bikes and separate modification files for track to track setups. Currently supports floating rocker (ie R1/GSX-R etc), fixed rocker (ie Ducati...

Showing the integrated workout editor. This is based off FTP percentages so they will adjust themselves as you improve or, dare I say, get worse.. The workout has a series of "segments" that you can set duration, desired FTP percentage for left, right and overall for the segment, add/remove segments, insert before/after existing segments etc. You can also directly enter values in the selected s...

Testing some effects for Spindrome. The trainer has various "motivation" segments which ask you to give additional wattage outputs to avoid penalties or gain speed. Here we are testing the lazer cannon run where your speed is reduced if you don't push out more than 350w (the wattage is based off your FTP). The road is populated with previous run ghosts and AI "pacers" you can latch onto.

Motorcycle Suspension Geometry

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