David Evan Zlotnik

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About

David Evan Zlotnik is a researcher whose work lies at the intersection of robotics, control theory, and nonlinear dynamics. His most cited contribution, "Saturated proportional derivative control of flexible-joint manipulators" (2014), addresses a fundamental challenge in robotics: maintaining stability and performance in systems with inherent flexibility, such as robotic arms with elastic joints. By developing a saturated PD control strategy, Zlotnik provided a practical solution that prevents actuator saturation while ensuring robust tracking—a critical advance for industrial and surgical robots operating in constrained environments. With over 20 citations, this work has influenced subsequent research in compliant actuation and safe human-robot interaction. Zlotnik’s broader research portfolio explores the control of underactuated systems and the application of geometric mechanics to robotic locomotion, bridging theoretical rigor with real-world implementation. His contributions are particularly valuable for students and engineers seeking to understand how to design controllers that balance precision, safety, and energy efficiency in next-generation robotic systems.