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HOLLOW SPAR [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-07-21

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
Al2SiO5
formula, see observation
DEF

A brown, yellow, green, red, or gray orthorhombic mineral [which] is trimorphous with kyanite and sillimanite.

CONT

Andalusite occurs in thick, nearly square prisms in schists, gneisses, and hornfelses; it forms at medium temperatures and pressures of a regionally metamorphosed sequence and is characteristic of contact-metamorphosed argillaceous rocks.

OBS

Chemical formula: Al2SiO5

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
Al2SiO5
formula, see observation
DEF

Minéral du système orthorhombique constitué d'un nésosilicate d'alumine, se présentant en cristaux gris clair ou rosés.

CONT

L'andalousite s'altère difficilement et est fréquente dans les roches très métamorphisées. Ainsi au contact d'un granite, un schiste peut contenir ce type d'aluminosilicate.

OBS

Étymologie : d'Andalousie (Espagne).

OBS

Formule chimique : Al2SiO5

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
Al2SiO5
formula, see observation
DEF

Una de las tres formas que puede adoptar el silicato anhidro de aluminio [...], propio de las rocas aluminíferas y arcillosas que han sido metamorfizadas al contacto con magmas de fusión.

OBS

Fórmula química: Al2SiO5

Save record 1

Record 2 2011-06-08

English

Subject field(s)
  • Aircraft Airframe
CONT

A wing spar, sometimes called a wing beam, is a principal spanwise member of the wing structure.

CONT

Spars are the principal structural members of the wing. They correspond to the longerons of the fuselage. They run parallel to the lateral axis, or toward the tip of the wing, and are usually attached to the fuselage by wing fittings, plain beams, or a truss system.

CONT

During flight, applied loads which are imposed on the wing structure are primarily on the skin. From the skin they are transmitted to the ribs and from the ribs to the spars. The spars support all distributed loads as well as concentrated weights, such as fuselage, landing gear, and, on multi-engine aircraft, the nacelles or pylons.

PHR

Auxiliary, center, front, hollow, internally routed, laminated, main, rear, rectangular spar.

French

Domaine(s)
  • Cellule d'aéronefs
CONT

Les longerons d'une aile sont le plus souvent au nombre de deux; lorsqu'ils sont réunis par des panneaux matérialisant l'extrados et l'intrados du profil, ils constituent un longeron-caisson, très résistant en torsion et qui permet de loger directement le carburant dans des réservoirs dits structuraux. Hormis ce cas, les longerons d'une aile sont réunis par les nervures, qui déterminent son profil; ceux du fuselage sont réunis par les couples [...]

CONT

Les longerons [...] constituent les éléments longitudinaux de la voilure (sens de l'envergure) et ils supportent les efforts de flexion verticale. [Les] semelles travaillent surtout en traction et compression; [...] les âmes travaillent surtout au cisaillement. [...] Les longerons ont une section décroissante de l'emplanture à l'extrémité de l'aile en raison de la variation des efforts supportés.

OBS

Contrairement aux longerons d'ailes (spar) les longerons du fuselage ne sont pas de véritables poutres.

OBS

longeron; longeron d'aile : termes uniformisés par les Comités d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et Maintenance.

PHR

Longeron arrière, auxiliaire, avant, central, creux, médian, principal, rectangulaire, secondaire, stratifié.

Spanish

Save record 2

Record 3 2011-05-17

English

Subject field(s)
  • Aircraft Airframe
DEF

A wood spar in the form of a box or a square.

CONT

Spars are the principal structural members of the wing. They correspond to the longerons of the fuselage. They run parallel to the lateral axis, or toward the tip of the wing, and are usually attached to the fuselage by wing fittings, plain beams, or a truss system. Wooden spars can be generally classified into four different types by their cross sectional configuration.... they may be partly hollow, in the shape of a box, solid or laminated, rectangular in shape, or in the form of an I-beam.... A box spar... is built up from plywood and solid spruce.

OBS

box spar: term standardized by ISO.

Key term(s)
  • double web spar

French

Domaine(s)
  • Cellule d'aéronefs
DEF

Longeron en bois ayant la forme d'une boîte ou d'un carré.

OBS

longeron-caisson : terme normalisé par l'ISO.

OBS

longeron caisson; longeron en caisson : termes uniformisés par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance.

Spanish

Save record 3

Record 4 1997-09-08

English

Subject field(s)
  • Aeronautical Engineering and Maintenance

French

Domaine(s)
  • Aérotechnique et maintenance
OBS

Terme uniformisé par le CUTA Maintenance.

Spanish

Save record 4

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