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French to English translations [PRO] Tech/Engineering - Aerospace / Aviation / Space / Solenoid valve test proce
French term or phrase:charge linéique des joints
Here's the full phrase:
Ces joint C-ring en Inconel revêtus de PTFE ont été développés afin de réduire la charge linéique des joints et ainsi récupérer des marges pour le serrage des vis fixant les EV’s à la platine.
Would this be 'linear load' or something else?
TIA Chris.
It appears they are "spring energized", which I imagine they don't require a high force to compress them.
www.ameriseal.com/Products/C_Seals/
C-ring seals have much lower initial FLANGE LOAD requirements than O-rings. However, it is still high enough to provide effective smearing of the plating or coating ...
THE FLANGE LOAD: All gasket materials must have sufficient flange pressure to compress the gasket enough to insure that a tight, unbroken seal occurs. The flange pressure, or minimum seating stress, necessary to accomplish this is known as the "y" factor. This flange pressure must be applied uniformly across the entire seating area to achieve perfect sealing. However, in actual service, the distribution around the gasket is not uniform. The greatest force is exerted on the area directly surrounding the bolts. The lowest force occurs mid-way between two bolts. This factor must be taken into account by the flange designer. http://www.durlon.com/GskFundam.htm
I assume from the above that charge linéaire is the mean load along the periphery of a seal, i.e. the flange load (I think).
THE FLANGE LOAD: The total force compressing the gasket to create a seal, i.e., the EFFECTIVE PRESSURE resulting from the bolt loading. http://www.lamonsgasket.com/html/design.html
A bit of reading between the lines here, so only conf.3.
In this context I would avoid using the word linear since it is potentially ambiguous in describing the functional way in which the load is distributed. There again, "non-linear" has a very different and specific meaning in mathematics. "Load per unit length" is both descriptive and unambiguous in describing the load around the circumference (which may in fact not be uniform at all).
Re. "linear density": Doesn't make much sense in this context, where a seal face is being tightened up.
Linear density, linear mass density or linear mass is a measure of mass per unit of length, and it is a characteristic of strings or other one-dimensional objects. The SI unit of linear density is the kilogram per metre (kg/m). The linear density, μ (sometimes denoted by λ), of an object is defined as:
So 'linear density' and not 'linear load'?
Assuming these seals are circular, I'm guessing that the cross-section is in the form of a C which deforms plastically under load. Any irregularities in the mating surfaces would be ironed out, as it were, leading to a more uniform load around the circumference, ie the *load per unit length*.
It appears they are "spring energized", which I imagine they don't require a high force to compress them.
www.ameriseal.com/Products/C_Seals/
C-ring seals have much lower initial FLANGE LOAD requirements than O-rings. However, it is still high enough to provide effective smearing of the plating or coating ...
THE FLANGE LOAD: All gasket materials must have sufficient flange pressure to compress the gasket enough to insure that a tight, unbroken seal occurs. The flange pressure, or minimum seating stress, necessary to accomplish this is known as the "y" factor. This flange pressure must be applied uniformly across the entire seating area to achieve perfect sealing. However, in actual service, the distribution around the gasket is not uniform. The greatest force is exerted on the area directly surrounding the bolts. The lowest force occurs mid-way between two bolts. This factor must be taken into account by the flange designer. http://www.durlon.com/GskFundam.htm
I assume from the above that charge linéaire is the mean load along the periphery of a seal, i.e. the flange load (I think).
THE FLANGE LOAD: The total force compressing the gasket to create a seal, i.e., the EFFECTIVE PRESSURE resulting from the bolt loading. http://www.lamonsgasket.com/html/design.html
A bit of reading between the lines here, so only conf.3.
xxxBourth Local time: 17:51 Native speaker of: English PRO pts in category: 147
Reference information: Cours de mécanique : systèmes d'unités
physique.coursgratuits.net/.../systemes-d-unites.ph... - Translate this page
Remarque: Le passage d'une unité à une autre pour exprimer une même ... trigonométrie sphérique et géométrie plane dans la section de géométrie) n'a pas ..... épaisseur et une "charge linéique" (ou "densité linéique" de charge) pour des
-------------------------------------------------- Note added at 47 mins (2011-11-01 09:55:40 GMT) --------------------------------------------------
Glossary of Materials Testing and Force Measurement Terms www.chatillon.com/resources/glossary/index.aspx
Shear stress that acts on a overlapped joint. Linear Density Mass per unit length. Linear Portion Section of the stress / strain curve where increase in load is ...
liz askew United Kingdom Native speaker of: English PRO pts in category: 19
The translation workplace 
