Matlab 2-D Simulation for TLI (Trans Lunar Injection) Basic Orbital Mechanics

[thundergod]

Matlab 2-D Simulation for TLI (Trans Lunar Injection) "Basic Orbital Mechanics"

Hi Everyone,

I have been assigned a project in which I am to program in MATLAB the solution to the 3-body problem, but in 2-D with a couple assumptions.

1) Earth and Moon are stationary.
2) Mass of spaceship is constant
3) Spaceship initially in circular orbit 20km above earth

Here is my problem, the school does not offer a class in MATLAB programming. So I looked all over for some sample codes I could modify.

I found one that seems to be a great start but I do not fully understand it. I was hoping someone on here could help.

I file 'orbit.m' call upon 'orbitode.m' which I believe is a standard example script for matlab. However I keep getting the error 'no default parameters set' as well as two others. Can someone please please help me figure this out.

If I could just get the file 'orbit.m' working I think I can get the rest. Also if anyone would like to briefly explain what is going on i.e. how MATLAB is working or what exactly it is doing that would be great!

Thanks in advance for all your help.

 

[meow44]

this is what i was looking for! thanks so much! helped a lot!

simulation rachat de credit

 

[oswaler]

Hello,

I am familiar with MATLAB and its capabilities in solving complex mathematical problems. It is great to see that you are using MATLAB to simulate the TLI (Trans Lunar Injection) and learn about basic orbital mechanics.

Firstly, let me address your concerns regarding the error messages you are receiving. The error 'no default parameters set' means that the code is expecting some parameters to be defined before it can run, but they have not been set. This could be due to missing input or incorrect syntax in your code. I would suggest going through the code line by line and checking for any errors or missing parameters.

As for the code itself, 'orbit.m' is the main script that calls upon the function 'orbitode.m'. This function is solving the ordinary differential equations (ODEs) that describe the motion of the spaceship in 2-D space. The ODEs are derived from the basic orbital mechanics equations, taking into account the assumptions you have listed.

In simple terms, MATLAB is solving these equations numerically and plotting the trajectory of the spaceship over time. This allows you to visualize and analyze its motion in a 2-D space. It is a powerful tool for simulating complex systems and understanding their behavior.

I would recommend going through some basic MATLAB tutorials to get a better understanding of the syntax and functions used in the code. This will also help you in modifying the code to suit your specific project requirements.

I hope this helps and good luck with your project!