Gwon-Jong Yu

Papers

Total Citations

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About

Gwon-Jong Yu is a researcher specializing in ultrasonic motor (USM) technology, fuzzy control systems, and robotics actuation. His work focuses on the design and optimization of high-frequency resonant inverters and temperature compensation mechanisms for USMs, particularly in robotic joint applications. Yu's most cited paper (2002, 4 citations) introduces a fuzzy logic controller to regulate speed and phase difference in traveling wave USMs, addressing the elasticity and viscosity challenges in robot joints. A second influential study (2002, 3 citations) investigates the temperature-dependent behavior of USMs, demonstrating that while the motor operates normally between +20°C and +30°C, performance degrades at higher temperatures—a critical insight for practical actuator design. Though his citation counts are modest, Yu's contributions are notable for advancing the integration of intelligent control strategies into ultrasonic motor systems, bridging the gap between theoretical motor dynamics and real-world robotic actuation. His work remains relevant for researchers exploring precision motion control, smart materials, and adaptive robotics, offering foundational knowledge on how fuzzy logic can enhance motor efficiency and reliability under varying operational conditions.