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About

Zhaoyao Shi is a mechanical engineering researcher whose work sits at the intersection of precision transmission systems, robotics, and advanced manufacturing. His most significant contributions center on the performance analysis and measurement of precision reducers — particularly RV (rotate vector) reducers and cycloid pin-wheel systems — which serve as critical components in industrial robot joints. Shi's 2019 study on transmission performance in RV reducers, examining how profile modification and load influence torsional stiffness and transmission errors, has garnered 80 citations, establishing him as a leading voice in this specialized field. Complementing this, his dynamic measurement methodology for lost motion in precision reducers (39 citations) introduced rigorous approaches for determining optimal measurement speeds, directly informing quality evaluation standards for robotic components. His research extends into structural optimization, with lightweight leg design for bipedal humanoid robots, as well as advanced control systems for electro-mechanical actuators using active disturbance rejection control. More recent work explores hysteresis curve modeling for lost motion evaluation and innovative gear skiving methods for internal spiral bevel gears, reflecting a continuously evolving research agenda. Collectively, Shi's body of work has meaningfully advanced the precision, reliability, and performance standards of modern robotic transmission systems.