Sudhendu Rai

Massachusetts Institute of Technology, Palo Alto Research Center

Papers

Total Citations

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About

Sudhendu Rai’s research lies at the intersection of robotics, structural dynamics, and control systems, with a focus on the integrated design of flexible robot arms. His pioneering work demonstrates that the performance of high-speed robots can be dramatically improved by simultaneously optimizing mechanical structure and control algorithms, rather than treating them as separate domains. In his most cited paper (45 citations), Rai introduces a control-configured flexible arm that relocates open-loop poles and zeros by systematically modifying the arm’s geometry and structure using finite-element modeling and inverse mapping. His 1995 paper (27 citations) extends this approach to time-optimal control, analyzing how link inertia and flexibility interact to limit speed and precision. Rai also developed a computer-aided design method based on singular value decomposition (12 citations) that enables engineers to modify mechanical structures of electromechanical systems—such as robots and positioning systems—to achieve desired pole-zero characteristics. His contributions are foundational to the field of mechatronic design, offering a systematic framework that reduces trial-and-error in prototyping and enhances the speed and accuracy of flexible robotic systems.