Active Aerodynamics Design and Destruction
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- เผยแพร่เมื่อ 8 ก.ค. 2020
- This video details the design, build and test of the active aerodynamics I built for my Traxxas Rustler. It was to be used in conjunction with my speed run wheelie bar to keep the front end from lifting at higher speeds and heavy throttle. The wing is self stabilizing based on Gyro Feedback and a front mounted servo. #traxxas #aerodynamics
- วิทยาศาสตร์และเทคโนโลยี
The way you slapped the car off the table in the beginning had me dying🤣🤣🤣
Haha adding to this...I did a horrible job painting that car so tons of tiny little flakes of green paint were all over my office.
Most sincere engineering channel🙏❤️ transparency and details of design process is really valuable btw. If you wouldn't put your source on car aerodynamics, it would be a mystery for all your viewers. But now thanks to you, I know what to do, roughly. I appreciate all your efforts sir🙏 thanks for being in this world😀
At least I'm not the only one who has an RC car that will seek out curbs and make a colorful display of broken parts.
Add a rear wing like a f1 car good job on the video really good content
This is so great! Both the video and the channel! You need WAY more attention. Also you really should try a servo driven tail as well, so you can get down force for speed and then suddenly "up force" for a "jump". Great work!
Thanks for the kind words! I love the idea of using it to catch more air on jumps!
Great vid, funny too! The explanation of the tire radius changing at high speeds was great, especially with the demonstration, who knew! Would love to see that thing in production someday!
Leaving a comment for the TH-cam algorithm god's. This channel is criminally underviewed.
Haha thanks! Hopefully it'll get us favor
I caught that AVE sticker shoutout. 😉🤙
I really enjoy your channel! hope you keep making videos!
5:10 looks like a Kevin Talbot experiment result.. 😂
A pretty neat project, but have you tried playing with shock damping and anti squat?
Well the shocks are already damped so im assuming you mean outside of that. Can you explain what you mean a little more?
Hey, interesting project! I don't know if you want advice on how to make this work, or just want to do it your way, but there are simpler options on how to setup the car for speed runs. Get some foam tires, Contact 1/10 foams, 30mm wide, they wont balloon. They are only 65mm, so you lose some in your final drive, but its a trade off for stability. Secondly, add a rear wing, it will help keep the back planted, however, don't use anything too aggressive, since it will cause it to wheelie when you get over 60 or 70. If you look at a lot of 100mph cars, the rear wing is just a flat piece, with large vertical uprights for straight line stability. For the front, add a splitter to limit the amount of air getting under the car. Since you have a 3d printer, add some air dams. Make it as low to the ground as possible. Add some droop screws to the a arms and lower everything, but make sure to rake the car forwards, with the rear sitting higher than the front. You can limit your shocks by stiffen them up with the spring collars, and adding thicker oil. You don't want a whole lot of suspension travel. I use shock limiters, to prevent it from bottoming out. Anyways, these are just a few things I've picked up over my short speed running phase. Good luck!
That's all really good data for anyone looking to do it the typical way and are primarily focused on speed runs.
The intent here was to over engineer so I can demonstrate active aero with gyro stabilization and wing design. Wings like this are very "draggy" so I'd never put them on a true top speed car. Wings are more useful for lateral Gs.
i have a race car and mine keeps flipping id love one of these best invention ever
One thing that you could do is band the tires with fishing line. This would stop the ballooning and would solve a few of your issues
You should look into belted tires if you're trying to do speed runs.
Definitely a good idea
In the 60s, sportscar racers were tying active wings to the suspension arms. Banned very quickly.... I think as soon as someone overdid it and put a giant active wing on top of the car. Maybe chapperal was first? They did it, too.
I'm glad the algorithm gods gave your channel a recom.
Haha...im glad about that as well. Thanks for the comments!
Great Video!
5:29 Hilarious sign is hilarious.
Love the AVE sticker!
Really cool idea, but it the Car drives downhill, the Front Wing now produces uplift
Is the gyro unit a atore bought unit or home brew? I need something like this for a boat project and prefer not to re-invent the wheel. I dont think a standard car gyro is going to work.
Give a shot to a different suspension design 😉
Soooo... can I use the electronics from this to control a front splitter on a custom race car?
Eextremy cool! but... how the motor of front wing understand the gyroscopic? Arduino?
It was an old product designed for camera pan tilt. It uses a gyro and automatically sends a servo signal for control.
How did you get the speedo meter on the video display, great videos 👍🏼
Through the gopro app with a hero 7 black. As long as you have a gopro with a GPS built in, you should be able to add them.
Why don't you lower the car add diffuser and things like that? I have no experience in speed runs so I'm just wondering why not try the same things that full scale cars use to some degree.
Honestly this was just to see if I could get active aero to work. I do want to do a build more along the lines of what you mention though.
Have or will you try taping the tires so they won't ballon?
The new version has belted tires (hoons). I'm hoping to wrap up editing this week. My work schedule has been wild!
What if you mounted the wings to the uprights in the suspension like early chaparral race cars.
Like unsprung aero?
@@EngineeringAfterHours Yes exactly!.
Get yourself some belted tires 🍻
Why don’t you use belted tires?
Belted tires are actually in the rebuild. Dboot Hoons to be exact. Im hoping to get some testing done in a week or 2
Oh Thanks those are great tires
The point of a wheelie bar is to wheelie
It’s rocket league time
Your servo is responding way to slow. You should start by making a bump on the road of known size that you want to try and correct. Then work out the average time the car has airtime and how long it takes for it to peak. Then you know how fast your servo needs to respond, at which point I am sure you will see it is not responding as fast as it should.
On another note you could try using two drone motors on the side of the car at the center of gravity that angle to creat down force. You could angle it in such a way so that the props give you thrust as well. Then still using the accelerometer sensor to adjust the angle of the props to minimise airtime. I think on such a small car with such low speeds, this would be a better option.
The wing isn't intended to correct bumps. It's actually for wheelies when i hit full throttle in the 40mph+ region.
There's no way this system could ever correct for bumps as you've pointed out...its much too slow.
@@EngineeringAfterHours oh ok then maybe I misunderstood. I thought the point was to keep the RC flat on the ground.