G. Schenkel

Papers

Total Citations

709

H-Index

About

G. Schenkel is a pioneering researcher in the field of haptic interfaces and sampled-data control systems, whose work has fundamentally shaped how robots and force-reflecting human interfaces achieve stable, safe interaction. Schenkel’s primary contributions lie in establishing rigorous passivity conditions for systems that blend continuous-time physical plants with discrete-time controllers—a critical challenge in robotics and teleoperation. Their landmark 1997 paper, “Passivity of a class of sampled-data systems: Application to haptic interfaces,” has garnered over 490 citations, providing foundational necessary conditions for stability in force-feedback devices. A subsequent 2005 paper, with 219 citations, extended this work by deriving a necessary and sufficient condition for passivity, offering a complete theoretical framework. This research is essential for preventing unstable, unsafe behavior in haptic systems used in surgical robots, virtual reality, and remote manipulation. Schenkel’s work is widely recognized as a cornerstone of haptic control theory, enabling engineers to design interfaces that feel natural and remain robustly stable. Their contributions continue to influence modern robotics and human-machine interaction research.