Sethu K. Madhavan

Papers

Total Citations

H-Index

About

Sethu K. Madhavan is a control systems researcher whose career has been defined by pioneering contributions to the dynamics and control of flexible robotic manipulators — a challenging domain where structural elasticity introduces significant complexity into trajectory planning and stabilization. His most influential work, "Inverse Trajectory Control and Zero Dynamics Sensitivity of an Elastic Manipulator" (1991), garnered 51 citations and laid important theoretical groundwork by developing a control law based on input-output map inversion for two-link flexible robotic arms, elegantly addressing the delicate balance between joint angle control and tip elastic deformation. Recognizing that direct tip position control produces unstable zero dynamics, Madhavan pioneered the strategy of targeting points in the neighborhood of the tip — a pragmatic and mathematically rigorous solution that informed his subsequent research. His 1993 paper on variable structure trajectory control, with 20 citations, extended this framework using sliding mode principles, while his 2005 study refined these techniques further. Collectively, his body of work represents a sustained and coherent investigation into making flexible robotic arms practically controllable, offering foundational insights that remain relevant to researchers working on lightweight, high-speed robotic systems today.