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MAIN ROTOR HUB [5 records]

Record 1 2006-10-06

English

Subject field(s)
  • Bearings and Bearing Systems (Mechanical Components)
  • Wind Energy
DEF

main bearings : In a horizontal-axis wind turbine, the bearings supporting the main shaft, hub, and rotor [and in] a vertical-axis wind turbine, the bearings at the top and bottom of the rotor.

OBS

Term generally used in the plural.

Key term(s)
  • main bearings

French

Domaine(s)
  • Paliers, coussinets et roulements (Composants mécaniques)
  • Énergie éolienne
DEF

Pour une éolienne à axe horizontal, roulement qui soutient l'arbre principal, le moyeu et le rotor, et pour une éolienne à axe vertical, roulement logé en haut et en bas du rotor.

Spanish

Save record 1

Record 2 2004-04-08

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
  • Helicopters (Military)
CONT

Trim tab bender shall installed so angle indicator is located on bottom side of trim tab.

OBS

trim tab :Main rotor blades are of all metal construction with an aluminum alloy honeycomb core, aluminum skins and nose block. All structural components are joined by metal to metal bonding. The blades are set in hub grips at a precone angle of 2½ [degree] and are secured by a single retention bolt in each grip. A trim tab is located on the blade trailing edge for tracking adjustments.

French

Domaine(s)
  • Aérotechnique et maintenance
  • Hélicoptères (Militaire)

Spanish

Save record 2

Record 3 2003-11-07

English

Subject field(s)
  • Helicopters (Military)
  • Aircraft Propulsion Systems
CONT

A helicopter "rotor system" is the unit that is composed of a hub and the blades attached to it. Each rotor is considered a separate system, and a helicopter may have more than one main rotor. There are three primary types of rotor systems : articulated, semi-rigid, and rigid.

French

Domaine(s)
  • Hélicoptères (Militaire)
  • Propulsion des aéronefs
CONT

[...] ensemble rotor sustentateur et queue [...]

Spanish

Save record 3

Record 4 2001-07-30

English

Subject field(s)
  • Helicopters (Military)
  • Aeroindustry
CONT

The three-blade main rotor has a head with Spheriflex-type hub made of composite materials and featuring elastomer droop steps.

French

Domaine(s)
  • Hélicoptères (Militaire)
  • Constructions aéronautiques

Spanish

Save record 4

Record 5 1988-03-24

English

Subject field(s)
  • Helicopters (Military)
  • Joining Elements (Mechanical Components)
CONT

... the main rotor consists of a flexible central star, to which the blades are attached well out from the hub, with a rigid sleeve transmitting pitch-change movements from the vertical pitch-control rods at the hub to the blades proper.

French

Domaine(s)
  • Hélicoptères (Militaire)
  • Éléments d'assemblage (Composants mécaniques)

Spanish

Save record 5

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