MS student Myeongbaek Youn from SNU Dept. of Mechanical and Aerospace Engineering System Health and Risk Management Lab (Advisor: Prof. Byeng Dong Youn) received Best Student Paper Award from the Korean Society of Mechanical Engineers 2018 Annual Conference for his research titled “Vibration-Based Fault Diagnostics of Planetary Gears Under Non-stationary Conditions.”

The title is “Performance Evaluation of Planetary Gearbox Fault Detection Algorithm at Variable Speed Conditions based on Time-Frequency Analysis.” The research performed a comparative analysis of fault diagnosis of planetary gears under variable conditions where speed changes with time, using Short-time Fourier Transform, wavelet transform and Wigno-Ville distribution, and examined the characteristics of various time-frequency analyses.