17 Mar

FORAY - Find a good way to manufacture balloon

Zhaoliang Zheng

Last week, I tried different ways of manufacturing balloon. And it turned out the soldering iron way is the best way for one person to do that in the lab. Last Friday, I successfully manufactured one in the lab, as shown in the following figures. And the following figure is what happened afte...

15 Mar

FORAY - Crazyflie Yaw Rate PID Control Modification

Ethan Uetrecht

After setting up the crazyflie as a blimp and performing various tests, one primary issue was noticed when attempting to control the blimp. This issue was in the yaw control; I noticed that for large yaw inputs, the blimp would not turn left or right. Instead, the left and right motors would alterna...

15 Mar

Create Project: End-to-end Test

Zida Wu

The source code of this project is https://git.uclalemur.com/zhz03/DARPA_CREATE_Code/-/tree/master/

11 Mar

FORAY - DIY custom mylar balloon

Zhaoliang Zheng

This week, I tried three different ways to DIY custom mylar foil balloon: Multipurpose Adhesive + super glue to seal the mylar foil Soldering iron to seal the foil Soldering iron to seal first and then multipurpose adhesive to double seal It turns out all these method have s...

04 Mar

FORAY - Flying test case: vertical flying test

Zhaoliang Zheng

This week, we conducted lots of flying test under Opti-track system. Here we showed one example of vertical flying test. After data has been processed: position plot: velocity plot:

04 Mar

Quick Notes of the Code of Create Project

Zida Wu

This notes are quick notes after I have tested all Create code in practice. It contains the terms which easy to make people puzzled and somethings left to do. I marked this note in case to forget before I continue to finish the left parts. Important terms in code: binary_1d: u (event) is binary...

03 Mar

ICRA accepted & IROS submitted

Chang Liu

IROS Submitted I am happy to have our IROS paper submitted. Here is our paper on arXiv. Here you can find the demo video. Here you can find all document (e.g. designs, codes, drawings). Here are all videos. Thank you everyone for your support! ICRA Accepted Congratulations to Wenz...

25 Feb

FORAY - Bata test of Crazyflie setup on a saucer-shape blimp

Zhaoliang Zheng

The crazyflie test setup is shown in the figure: Fly test on crazyflie: I found some bugs on this design and I'm trying to fix that right now.

23 Feb

FORAY - CFD analysis and drag coefficient of saucer shape balloon using Ansys fluent

Zhaoliang Zheng

This week, I sucessfully used Ansys fluent software to get the CFD analysis of specified saucer-shape balloon as shown in the following figures.

19 Feb

FORAY - Ansys fluent example learning

Zhaoliang Zheng

It took me quite amount of time to finish calculating the drag coefficient of this example(plane) in analysis fluent. Drag coefficient calculation: Fluid relative velocity plot:

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