During an earthquake, friction is a key control on the initiation, propagation and termination of fault motion. Laboratory experiments that use variable slip rates suggest that friction evolves in a ...

Abstract: This letter proposes an online friction coefficient identification framework for legged robots on slippery terrain. The approach formulates the optimization problem to minimize the sum of ...

Abstract: With simple structure and control, impact inertial piezoelectric actuators are one promising type for precision positioning with large working stroke and high resolution. However, their ...

Before there were slide locks, liner locks and frame locks, there were friction folders. This type of knife has no lock at all. Instead, it has an extended tang that, when open, sinks between the ...