ga is stopping after 1 or 2 iterations only

Hello,

I am trying to create a flipping trajectory for a drone by using the ga solver. I set all my constraints and bounds for the problem.

The trajectory is separated into 3 different phases, and there are 9 parameters to be optimized in total:

1 - Height at the beginning of the trajectory.

2 - Height at the end of the first phase (the reaching phase).

3 - Height at the end of the second phase (the flipping phase).

4 - Height at the end of the third phase (the recovery phase).

5 - The roll angle at the beginning of the second phase (the flipping phase).

6 - The roll angle at the end of the second phase (the flipping phase).

7 - The time t1 required for the trajectory of the first phase (the reaching phase).

8 - The time t2 required for the trajectory of the second phase (the flipping phase).

9 - The time t3 required for the trajectory of the third phase (the recovery phase).

The objective function to be minimzed is the total time to do the trajectory (t1+t2+t3).

However, when ga tries to solve the problem, it just stops after 1 or 2 iterations and the output variable message is that no feasible solution was found.

Can someone help me? I am not sure what I am doing wrong.

The code is a bit large to post here so I will share a github link.

https://github.com/enhatem/flip_trajectory_generation/tree/main/genetic_algorithm

The main script is called ga_main.m

I also attached the code above in a zip file for your convenience.

Thanks in advance.

Answer 1

[Alex Alex]

may be more iterations?

[Elie Hatem]

Thank for your response. Yeah I tried it by setting iter = 50. So I solved the problem 50 times.

And, each time, the ga solver either stopped after 1 or 2 iterations.