[Researcher of the Month] The Faster, Simpler, Easier, the Better!
Professor Hong Jung-pyo (Automotive Engineering)
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Today, we live in the world where everything is becoming mechanized, meaning the field of electronics and mechanics are infinitely evolving. Conspicuous or not, there are small and big changes around us that make our lives more convenient and more efficient in various ways. Professor Hong Jung-pyo (Department of Automotive Engineering), in his paper, “Simple size determination of permanent-magnet synchronous machines” has established a milestone in the field of both electronics and mechanics, by proposing a means of simplifying the process of designing and developing machines.
When designing and producing an instrument, engineers go through trials of experiments, trying to pick the best formula by observing the results of each experiment. Such a process demands laborious amounts of time and cost, which under certain circumstances can be unaffordable. A perfect, well-constructed device or motor has been made through stages of trial-and-error so far, being tested on their performance in each stage. However, with Hong’s proposal of simulation experiment, this entire step could be greatly reduced, simply by executing the experiment with the simulator.
When working on a motor, it is important to harmoniously combine the techniques of both the electrician and the engineer. However, what is more important is, the two fields should not be seen separately. The two perspectives commingled as one will bring the best result, whereas if they are regarded separately, failures can arise, and it would be difficult to figure out where the problem originated from. The simulator Hong proposed in his paper acts not only as a catalyst in making the process of developing machines faster, simpler, and easier by exempting the trial-and-error step but also allows to preview an outcome of integrated viewpoint.
“For a better understanding, imagine this picture. There is a device I’m trying to make, and I want to equip this circle-shaped part. After doing so, I still think I can improve the final product somehow, so I will try dismantling the part I just added and equip this oval-shaped part. When doing so, I have to carefully remove the circle-shaped part and re-equip the oval-shaped one and then compare the two results to see what the best combination is.” This process of trial-and-error and comparison, which is time-consuming, is what Hong wanted to resolve with his research. With the simulator, engineers can simply enter the input and compare the different outcomes and go for what is the best much more conveniently.
Everything that moves, including cars, elevators, and airplanes, are all powered by electric motors. In the future, the range of usages will increase infinitely which means there will be experiments after experiments for the development of motor-based objects. In each case, Hong’s research can greatly reduce the development process and offer the direction of choices for better outcomes. His future research goal is to create a unified solution of electronics and mechanics, which will boost the usability of the machine itself.
Jeon Chae-yun email@example.com
Photos by Park Young-min, Kim Youn-soo
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