Uploaded October 2016 | Updated September 2026, 2 weeks ago
In this video, I will explain how to define the tire axis system, along with definitions for the forces and moments acting on a tire (or tyre) in this coordinate system.
After the definitions, I'll go through a little example of why it's important to understand sign convention when talking about how tires generate their forces and moments. The example goes through the relationship between lateral force (cornering force) and slip angle (which are topics for a few other videos that I'm currently making).
===== WHAT TO WATCH NEXT =====
→ Tire Slip Angle
goo.gl/9hyb9T
===== THUMBNAIL IMAGE =====
The picture in the thumbnail is someone's rendering of my SolidWorks model of a tire and wheel (from GrabCad). I picked this particular rendering (and not mine) because it was an isometric view so I could add the axes, and because I didn't feel like doing another rendering.
In this video, I will explain how to define the tire axis system, along with definitions for the forces and moments acting on a tire (or tyre) in this coordinate system.
After the definitions, I'll go through a little example of why it's important to understand sign convention when talking about how tires generate their forces and moments. The example goes through the relationship between lateral force (cornering force) and slip angle (which are topics for a few other videos that I'm currently making).
===== WHAT TO WATCH NEXT =====
→ Tire Slip Angle
goo.gl/9hyb9T
===== THUMBNAIL IMAGE =====
The picture in the thumbnail is someone's rendering of my SolidWorks model of a tire and wheel (from GrabCad). I picked this particular rendering (and not mine) because it was an isometric view so I could add the axes, and because I didn't feel like doing another rendering.
![Explained: Linspace [MATLAB]](https://i.ytimg.com/vi/PA4hJy48eJw/mqdefault.jpg "Explained: Linspace [MATLAB]
In this video I show you how to use the linspace function in MATLAB to easily create arrays.")
![Explained: NACA 4-Digit Airfoil MATLAB Code [Airplanes]](https://i.ytimg.com/vi/QezOan1pVgs/mqdefault.jpg "Explained: NACA 4-Digit Airfoil MATLAB Code [Airplanes]
This video goes through a step-by-step description of the coding of a program to calculate the coordinates of a NACA 4-digit airfoil.
If you would like to know where the equations come from, please see my previous video, located here:
http://goo.gl/FcufZh
To download a GUI I made from this code, visit my GitHub linked to here:
https://github.com/jte0419/NACA_4_Digit_Airfoil")
![Explained: How I Set Up MATLAB Scripts [MATLAB]](https://i.ytimg.com/vi/SJ7z7fHpxM8/mqdefault.jpg "Explained: How I Set Up MATLAB Scripts [MATLAB]
In this video I show how I personally set up a MATLAB script before I begin any coding. The title of the code can be more descriptive than the actual name of the file. I like to include who wrote the code. This isnt necessarily important if youre the only one accessing your code, but if you write code in a framework with other people, this helps indicate who actually started the file.
The started and updated dates are important, especially if you have multiple versions of the code (e.g. Code_v1.m and Code_v2.m) because it will help you keep track of changes. I have (dated) notebooks in which I derive the math behind some of my codes, so I can easily compare last update of the code with my notes from that day.
Commenting your code is extremely important! Dont neglect to comment just because you think youll remember what you did. If you write enough code, you WILL forget why you wrote something the way you did, and comments help tremendously.
Code folding and selective execution (using ctrl+enter) can be very convenient when you want to run just a single section of code. I forgot to mention this in the video, but you can also select the code you want to run with your mouse, and then press f9. Im a sucker for code folded sections though.")
![Explained: NACA 4-Digit GUI Part 3/10 [MATLAB]](https://i.ytimg.com/vi/SbW1NDuvdJQ/mqdefault.jpg "Explained: NACA 4-Digit GUI Part 3/10 [MATLAB]
This is the third video in my 10-video series on coding a program in MATLAB to compute, display, and save a NACA 4-digit airfoil.
IN THIS VIDEO:
We code the initialization of the code, which governs what happens before the GUI is made visible to the user.
IN THIS SERIES:
Part 1/10 : https://goo.gl/9UBgbo
Part 2/10 : https://goo.gl/jRRcYJ
Part 3/10 : https://goo.gl/rSVLHo
Part 4/10 : https://goo.gl/HwHB39
Part 5/10 : https://goo.gl/AlDne8
Part 6/10 : https://goo.gl/7n1QP7
Part 7/10 : https://goo.gl/nTGleR
Part 8/10 : https://goo.gl/ez247P
Part 9/10 : https://goo.gl/8mXYcc
Part 10/10: https://goo.gl/ovBlbW")
