Tag

Rotors

All articles tagged with #rotors

space-and-astronomy15 days ago•5 min saved

NASA tests Mars rotors at Mach 1.08 to power next-gen SkyFall helicopters

NASA and AeroVironment tested two Mars-bound rotor systems in JPL’s Mars simulator, reaching rotor tip speeds up to Mach 1.08 (about 3,750 rpm) under simulated Martian conditions—surpassing Mars’ speed of sound and signaling feasibility for larger SkyFall rotorcraft that could carry bigger instruments and longer missions, building on Ingenuity’s historic Mars flights.

via Yahoo Tech|

#ingenuity #mars #nasa

science1 month ago•7 min saved

Gears Without Teeth: Fluid Flows Spin Rotors in a Noncontact Engine

NYU researchers demonstrate fluid-driven gear-like coupling: two submerged rotors in a glycerol–water mix generate motion in a passive rotor via controlled liquid flows. By adjusting distance and rotation speed, the system can mimic interlocking gears (opposite directions) or belt-and-pulley systems (same direction), offering a tunable, noncontact alternative to traditional gears. Published in Physical Review Letters with NSF support.

via SciTechDaily|

#fluid-dynamics #mechanical-engineering #noncontact-gearing