四月は君の嘘(Your Lie in April)

I highly recommend the anime 「四月は君の嘘」, translated in English as “Your Lie in April”. It’s a real masterpiece! What a wonderful story: deep characters, soft and poetic sceneries, beautiful soundtracks, and breathtaking graphics. This anime tells the story of a piano prodigy, Kosei Arima (有馬 公生), who lost his acoustic ability after his mother’s death. One day, he miraculously meets with a girl, Kaori Miyazono (宮園 かをり), who plays the melodica with children to attract the pigeons. Kaori will change the entire fate of Kosei.

Official website: https://www.kimiuso.jp/

Postdoc at the University of Michigan

Hi there! Happy new year 2019! Here’s a little update. I graduated from the University of Brussels on December 11, 2018. I am now working as a postdoctoral fellow in the Department of Aerospace Engineering, at the University of Michigan, Ann Arbor, US, under the supervision of Prof. Ilya V. Kolmanovsky and Prof. Dennis S. Bernstein. You’ll find a gallery below of the department’s building, Francois-Xavier Bagnoud (FXB).

SAAS – Fall 2018

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The SAAS group as of Fall 2018.

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From left to right: Prof. Emanuele Garone, Ali Roshanbin, Prof. Michel Kinnaert, Dr. Mehdi Hosseinzadeh, Robin Wilmart, Pascale Lathouwers, Christophe Labar, Sandra Vasquez, Johnny Leung, Alejandro Goldar, Tam W. Nguyen, Dr. Christophe Mertens, Andres Cotorruelo, Nicolas Bono, Luis Daniel Couto, Kainan Wang, Dr. Alberto Romero, Laurent Catoire.

OpenModelica: Torque Transmission

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This video shows torque transmission behaviors through an arm and a thruster articulated by revolute joints. The simulations are carried out according to 7 cases:

  1. The torque is applied on the base, and the center of mass (CoM) of the thruster coincides with the joint;
  2. The torque is applied on the base, and the CoM of the thruster is not at the joint postion;
  3. The torque is applied on the thruster’s joint, and the CoM of the thruster coincides with the joint position;
  4. The torque is applied on the thruster’s joint, and the CoM is not positioned at the joint;
  5. The joint of the thruster is locked in the z direction, and a torque is applied on the thruster;
  6. Gravity is applied on the system with the CoM of the thruster at the joint position;
  7. Gravity is applied with the CoM not positioned at the joint.

The simulations are carried out using the software OpenModelica. The authors would like to acknowledge Dr. Alberto Romero who helped us get our hands on the software.

The source code can be downloaded here.

 

Subnautica…

Subnautica… what an amazing game! It tells the story of an exploration spaceship sent by the Alterra Corporation, which accidentally crashed on an infested Alien planet. This game exploits your anxiety/fear of depth, but also arouses your curiosity and courage to explore the unknown. Subnautica has created such an amazing universe based on advanced marine and engineering science, Alien civilization, mystery, crafting, and so much more. I am really speechless… the developers had so much imagination! They could create a well-thought, inspiring, but yet terrifying world, while providing the gamers a very captivating gameplay. I am still puzzled about this ancient albeit advanced civilization that lived on this planet… what happened…?

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Terrifying Leviathan class organism in deep waters…

MED Conference 2018 (Zadar)

The MED 2018 conference took place in Zadar (Croatia). What I appreciated the most was the Croatian people. They are very kind, warm hearted, and help you with open heart. All in all, I enjoyed the local people, the food, and the sun. I have also met four wonderful PhD students there. I hope we can meet again soon.

Simulations of “A Geodesic Approach for the Control of Tethered Quadrotors”

This video presents the results of the simulations for our paper “A Geodesic Approach for the Control of Tethered Quadrotors”. The system is composed of a UAV tethered to the ground by a cable. The objective is to move the UAV to the desired position while maintaining a minimum required tension in the cable. Four simulations are carried out:

  1.  A step reference is applied to the system;
  2. The RG is added to the stabilizing scheme;
  3. The ERG is added instead of the RG;
  4. A “figure of 8” is tracked by the UAV.

Continuation of the UGV Project

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Here is a quick update of the UGV project carried out by Laurent and Tigran (see here). Laurent succeeded to establish a wireless communication between a computer and the UGV and reliably send PWMs to the motors. Tigran has also good theoretical results on obstacle avoidance (using navigation functions and saddle point avoidance algorithms), and could investigate the problem of model uncertainties and disturbances on the ERG. Their report can be found in Master Projects/Theses and the video of Laurent is provided below. The new project (still in collaboration with Dr. Hosseinzadeh and Prof. Garone) has been freshly proposed and can be found here.

 

Benelux Meeting 2018 (Soesterberg)

The SAAS group at the Benelux Meeting 2018 in Soesterberg, Netherlands. Excellent conference as usual with the lovable SAAS group. The “all you can tea” was really memorable as well as attending Prof. Murat Arcak‘s plenary sessions on Dissipativity.

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From left to right, back to front: Alberto Romero, Andres Cotoruello, Alejandro Goldar, Johnny Leung, Sajad Azizi, Tam Nguyen, Satoshi Nakano, Nicolas Bono, and Christophe Labar.