Kamal Youcef-Toumi

Learn More
The human ankle provides a significant amount of net positive work during the stance period of walking, especially at moderate to fast walking speeds. On the contrary, conventional ankle-foot prostheses are completely passive during stance, and consequently, cannot provide net positive work. Clinical studies indicate that transtibial amputees using(More)
This paper addresses the issues of energy efficiency in mechanisms for underwater locomotion and its accomplishment using a more robust class of mechanical structures. We present a design methodology for fabricating a continuous mechanical fish body such that its kinematic behavior matches parametric models of fish swimming with minimum energy cost. It is(More)
The self-propelled swimming performance of two prototypes designed to mimic the kinematics of real fish swimming at high Reynolds numbers is presented. The design methodology uses structural compliance instead of discrete assemblies to achieve desired kinematics. Experiments took place at Reynolds numbers between 15×103 and 90×103. A prototype(More)