Yoji Takeda
Papers
8
Total Citations
64
H-Index
5
About
Yoji Takeda is a researcher specializing in industrial motor drive systems and control engineering, with particular expertise in vibration suppression and advanced motor design. His most significant contributions center on addressing torsional vibration in resonant mechanical systems — a persistent challenge in industrial plants and robotics where elastic elements in torque transmission hinder rapid speed response and risk mechanical damage. Takeda's most impactful work applies H∞ control theory to two-degrees-of-freedom speed control of resonant mechanical systems, with his 1996 paper accumulating 20 citations and establishing a foundational approach to robust control in this domain. Complementing this, his earlier investigations into state feedback control and pole assignment for two-mass systems (1993) and disturbance observer-based designs (1995) helped build a systematic framework for vibration suppression across multiple control strategies. His comparative analysis of resonance ratio control versus H∞ control further demonstrates a rigorous, evaluative approach to the field. Beyond control systems, Takeda made notable contributions to electric machine design, investigating multilayer interior permanent magnet (IPM) synchronous motors and demonstrating through FEM simulation and prototype experiments how reluctance torque can be leveraged for optimum motor performance — work that remains relevant to modern inverter-driven motor applications.
Research Focus
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