- Devices meant to dampen the dragging action of helicopters’ rotor blades. They are fitted between the rotor blades and part of the hub on all rotor systems in which dragging takes place. For damping, a hydraulic or friction system is usually employed at the root of the helicopter main rotor blade.
Aviation dictionary. 2014.
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drag — i. That component of aerodynamic forces acting on the wing or the airfoil section, which is parallel and opposite to the relative airflow. The sources of drag are the pressure distribution patterns over the airfoil, called induced drag; the skin… … Aviation dictionary
drag — Synonyms and related words: adduct, adduction, affinity, aggravation, allurement, amble, annoyance, arrest, artery, attract, attractance, attraction, attractiveness, attractivity, avenue, bad news, bag, bale, barge, be magnetic, be prolonged,… … Moby Thesaurus
damper — Synonyms and related words: acoustic tile, andiron, antiknock, arrest, baffler, bearing rein, bit, brake, chain, check, checkrein, chill, chock, clog, coal tongs, cold water, countercheck, crane, crepehanger, crook, curb, curb bit, cushion, damp … Moby Thesaurus
damper — n 1. barrier, obstacle, stumbling block, impediment, hindrance, stay, stop, difficulty; snag, hitch, knot, check, discouragement; load, drag; pall, cold water. 2. wet blanket, Sl. party pooper, kill joy, Sl. crape hanger … A Note on the Style of the synonym finder
Fiscal Drag — is an economics term referring to a situation where a government s net fiscal position (equal to its spending less any taxation) does not meet the net savings goals of the private economy. This can result in deflationary pressure attributed to… … Investment dictionary
blade damper A device — installed on the vertical (lead lag or drag) hinge to diminish or dampen blade oscillation or hunting around this hinge … Aviation dictionary
lead-lag motion — An angular oscillation of a rotor blade in the plane of rotation about a substantially vertical axis. The fore and aft movement of the tip of a helicopter rotor blade in its plane of rotation. Lead lag motion is the freedom given to each blade of … Aviation dictionary
dragging — The freedom given to each blade of a rotor to allow it to move in the plane of rotation independently of other blades. It is basically the angular oscillation of a rotor blade in the plane of rotation about a substantially vertical axis. This is… … Aviation dictionary
Damping — Classical mechanics Newton s Second Law History of classical mechanics … Wikipedia
Bicycle and motorcycle dynamics — A computer generated, simplified model of bike and rider demonstrating an uncontrolled right turn. An … Wikipedia