The effect of normal force on fretting wear behavior zirconium alloy tube mated with grid dimple in simulated primary water pressurized reactor nuclear power plant was investigated. Results showed that the maximum depth, volume and coefficient Zr at 315 °C gradually increased increasing force, while friction decreased. Fretting process could be divided into four stages according to variation du...

The Faculty of Engineering at Victoria University of Wellington, in Collaboration with the New Zealand School of Music, has constructed a four-stringed modular robotic bass guitar, MechBass. This paper presents a systems overview of the instrument, focusing on the fretting mechanism, picking mechanism, actuator control electronics, and control software. Upon evaluation and testing, MechBass has...