Invited Talks

Andy Ruina
Cornell University

Biography: Andy Ruina got three degrees from Brown University in Engineering. He has been at Cornell since 1980, originally in Theoretical and Applied Mechanics and now in Mechanical Engineering. He has worked on friction, fracture, collisions, bicycles and the mechanics of walking.

Balance: brooms, standing, walking and biking

There are open loop or uncontrolled ways to keep all of these things from falling over. These are interesting in themselves and interesting to compare to the means by which they can be balanced using control. How do things balance themselves and does this matter for controlled stability? Does passive stability depend on dissipation? Are there necessary tradeoffs between passive stability, efficiency and maneuverability?