08-22-2014, 04:16 PM | #155 | |
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https://docs.google.com/spreadsheet/...rive_web#gid=0 I've been thinking about applying to Optimum G (FSAE alumni here). Can't make up my mind
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08-22-2014, 11:47 PM | #156 | |
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It's not accurate. I started with the track width, then looked at alot of pictures of the geometry to get a rough estimate. Things like wheel/tire size and offset helped a bit for scaling. Using the rough estimates, I ran the kinematic model and made some minor tweaks to get the curves to look halfway normal. If anyone has better data, I've left the read/write access on that spreadsheet wide open for anyone to contribute.
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08-26-2014, 12:45 PM | #157 | |
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Yeah, I saw that and then read the rest of the post.
One of these days when I'm bored I'll jack the car up and measure points with string, chalk and the concrete floor with reference points for front and rear so that people can adjust for different ride heights, wheels and tires. Quote:
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09-07-2014, 12:39 AM | #158 |
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I just wanted to offer a word of caution with the suspension coordinates in the google document on the first page. It would be wise to double check the work .
Great ideas, a ton of excellent information and work in here! |
10-02-2014, 02:49 AM | #159 |
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ahhh cant wait until I can finally start using SolidWorks in class. Ill actually be able to participate in this discussion and know what Im talking about lol
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11-11-2014, 11:55 AM | #160 | |
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[ame="http://www.amazon.com/Race-Car-Vehicle-Dynamics-Experiments/dp/0768011272"]http://www.amazon.com/Race-Car-Vehicle-Dynamics-Experiments/dp/0768011272[/ame] and [ame="http://www.amazon.com/Fundamentals-Vehicle-Dynamics-Thomas-Gillespie/dp/1560911999/ref=sr_1_1?s=books&ie=UTF8&qid=1415724849&sr=1-1&keywords=vehicle+dynamics"]http://www.amazon.com/Fundamentals-Vehicle-Dynamics-Thomas-Gillespie/dp/1560911999/ref=sr_1_1?s=books&ie=UTF8&qid=1415724849&sr=1-1&keywords=vehicle+dynamics[/ame] and [ame="http://www.amazon.com/Vehicle-Dynamics-Application-Reza-Jazar/dp/0387742433/ref=sr_1_3?s=books&ie=UTF8&qid=1415724849&sr=1-3&keywords=vehicle+dynamics"]http://www.amazon.com/Vehicle-Dynamics-Application-Reza-Jazar/dp/0387742433/ref=sr_1_3?s=books&ie=UTF8&qid=1415724849&sr=1-3&keywords=vehicle+dynamics[/ame] These books teach you what equations and theory is needed to understand and implement a suspension model. SolidWorks can help you visualize the system, but without understanding of why points are where and what moving them does to your system, SolidWorks is useless. |
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11-11-2014, 12:21 PM | #161 | |
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Lol tell me how that goes. What school are you at? A basic solid works class teaches you nothing more than how to use the tools within solid works. It's still up to the user to understand wtf is going on. Sent from my iPhone using Tapatalk |
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11-11-2014, 12:48 PM | #162 |
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Not currently in my school yet, but solidworks was the only CAD program that came to mind lol
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11-14-2014, 06:17 PM | #163 |
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Developing a Proper Suspension Model
And so it begins....
I'm still waiting on the actual book to arrive Sent from my iPhone using Tapatalk |
The Following 4 Users Say Thank You to DuroSquad For This Useful Post: | plucas (11-16-2014), Racecomp Engineering (11-14-2014), solidONE (01-21-2015), SubiePig (12-04-2014) |
11-16-2014, 03:09 PM | #164 | |
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[ame="http://www.amazon.com/Chassis-Design-Principles-Analysis-R-206/dp/0768008263/ref=sr_1_1?ie=UTF8&qid=1416168491&sr=8-1&keywords=chassis+design"]Chassis Design: Principles and Analysis [R-206]: William F. Milliken, Douglas L. Milliken, Maurice Olley: 9780768008265: Amazon.com: Books[/ame] |
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12-04-2014, 04:26 AM | #165 |
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I was going to go to sleep two hours ago, but I started reading this thread. Curse my love of knowledge.
But otherwise, awesome stuff! |
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12-15-2014, 11:36 PM | #166 |
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Ive searched but couldn't find it. Has anyone measured and graphed front and rear camber curves and toe change.
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01-08-2015, 02:13 PM | #167 |
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01-09-2015, 10:35 AM | #168 |
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If anyone has those curves, it would be a huge service to the community for choosing the "optimal ride height." I use quotes because you can always set the static values of camber and toe... but if it changes quickly under the normal weight transfers of racing, we might have to tweak the geometry.
Some guy from the WRX world posted this up, but it comes with no context or guarantee. I assume that 1 and 2 inch are the levels of drop. 10, 20, 40 might be wheel spacers (or offsets).
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