Project-Based Learning プロジェクト ベースト ラーニング

What is PBL?

Project-Based Learning (PBL)

Project-based learning is offered in the “Flying Robot Project”, a part of “Creative Engineering Projects”. Junior and senior undergraduate students, as well as graduate students are welcome to join the project. An important goal of the project is to offer a chance to students to put in practice the knowledge they have gained in lectures to build and test their own aircraft. Following a PDCA (plan-do-check-act) cycle, the students analyze and solve an assignment, and validate their answer. During the aircraft building and flight test phases, the students work in teams, where discussions about the progress of each task helps the students develop their leadership, management and organizational skills.


Creative Engineering Projects (Undergraduate)

Creative Engineering Projects (Graduate)








Activities Reportactivities "Project-Based Learning" Report

  • May 22, 2019

    2019 Spring Semester Flying Robot Project Team E Article 3

    Hi, I would like to talk about team E’s Progress. Our plane S.K.H.Q. has a twisted thin wing with reversing camber. Therefore S.K.H.Q. has good stability even though it has no vertical tail wing. But this is ideal (only design based) performance. Through making drawing of the wing parts, I realized S.K.H.Q. had some delicate area and that was difficult to make by hand.
    I tried to balance the ideal and the reality. In this time, I constructed rib’s (cross section of the wing) spars (wing longitudinal parts) mounting hole for wing twisting but it caused difficulty of mounting wing front and back edge part.
    I also omitted some reverse camber.
    I learned many things about wing structure from drawing of wing parts.
    Picture shows S.K.H.Q.’s wing frame (ribs and spars).
    Don’t you think it will fly very well?
    Although it is a bit uneasy, I think such trial and error is also a fun part of this course.
    The drawings of the parts were closed, so next is making and test flight!

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  • May 22, 2019

    2019 Spring Semester Flying Robot Project Team C Article 3

    I modified a part of the three-dimensional structure created last week. We discussed how to create our airplane and decided to create a prototype first. In order to make a prototype quickly, the material of the prototype was decided to be styrene boards that are easy to process. Now, we have some concerns about prototypes. Styrene boards are heavy, so we doubt whether prototypes will fly. We are also worried that the center of gravity of the prototype is likely to be too far back.
    At the end of this class, I went through the process of purchasing styrene board and carbon sticks, which are materials that will be needed next week.
    From next week onwards, we plan to manufacture the prototype of the aircraft. I hope that the prototype plane will fly safely.

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  • May 22, 2019

    2019 Spring Semester Flying Robot Project Team D Article 3

    Today, we continued soldering of connectors and the design of the drone body. The connector was made from one cord from the battery to four cords connected to four ESC. So, we made this type of cord and soldered the connector to each of the end. About two connections which we have to solder was left, so we would like to do them in next week. When soldering them, the heat shrinking tube shrinks due to the heat of the solder, so we had to reconnect them.
    Another thing we soldered is the part that connects the ESC and the motor. When soldering this part, we had to care about the direction of the connection. This is because, the motor in the diagonal position must turn in the same direction and the adjacent motor must turn in a different direction to balance the drone. So, 2 out of 4 connector’s GRD and the power supply cord should be changed when we connect to the ESC and motor.
    We thought the design of the drone part by reference to the previous hybrid airplane. The main framework is to be made of a thin and strong pole, and the motor connected part is to be made of plywood which is designed by CAD(computer-aided design ) and processed by the laser cutter. We made the design using CAD and selected the framework body, so we want to try creating the body of our drone.
    In next week, we would like to start cutting out which is designed by CAD , and start making the drone body part. In addition, we should solder of the remaining connector for connecting the battery and ESC. We also want to test if the motor works properly if we have time after soldering.

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  • May 22, 2019

    2019 Spring Semester Flying Robot Project Team E Article 3

    This week, we began to cut out the parts and build the plane, from the plans and concept designs. Blended wing body wings` accuracy of the shape is extremely important, due to the lack of the horizontal tail wing to stabilize and adjust the attitude, so a special platform was decided to be built to achieve the exact angle of attacks for the each rib, and the camber shapes. The jig consists of accurately sized supports cut out from plywood plates via laser cutters, placed on graph paper with markings, on where the each supports and ribs should be placed. The wing will be assembled on the supports of the jig as shown in the picture. The airfoil ribs are made out of balsa wood, and the main spar will be constructed into a sandwich structure with balsa and plywood. The bonding of the parts were done by using instant glue. Our goal is to complete the main structure of the wing and begin placing the electronic parts such as the motor, receivers and servos, plus begin cutting out the parts to put these together on the plane … all during the next week !
    Still lots to be done………..

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  • May 15, 2019

    2019 Spring Semester Flying Robot Project Team D Article 2

    This day was the first day we started actual construction work for making our flying robot. The concept of our flying robot is the hybrid of a quadcopter and a fixed wing airplane. The robot will be move by the 4 motors of the quadcopter part and the wings of the airplane part will be used for hovering and turning. Because of this, we thought that the quadcopter part should be made and checked for operational use as soon as possible so we started working on circuits of the quadcopter.
    We had prepared pixhawk, the main controller of our robots, brushless motors, Electronic speed controllers and propellers already. Firstly, we connected pixhawk and PC, and checked how to use and calibrate sensors by a software, QGroundControl. It worked correctly, and the connection between pixhawk and proportional radio controller was also confirmed. Secondly, we made some cords by a soldering iron. Some connectors were not prepared, so we couldn’t make all the cords we need.
    Next week, we will start making the body of the quadcopter part, and finish making cords. We need to prepare connectors and CAD data of our flying robot by the next class.

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