Abstract:
A grid stiffened structure which includes a wall which extends in a direction transverse relative to a plane and an elongated rib connected along an elongated dimension of the rib to the wall such that the elongated rib extends along the wall and forms an angle with an axis which extends in a direction perpendicular to the plane. The elongated rib defines a free sidewall which extends from the wall positioned on a first side of the elongated rib and extends in a direction about the elongated rib and transverse to the elongated dimension to the wall positioned on a second side of the elongated rib. The wall and the elongated rib are constructed of a plurality of layers of material which extend in a direction transverse to the axis.
Abstract:
The invention relates to a compressed gas container (1) having a casing (2) that surrounds a storage volume, said casing comprising a matrix and reinforcing fibers (6, 6a, 6b). The compressed gas container according to the invention is characterized in that the composition of the matrix between the region of the casing (2) facing the storage volume and the region of the casing (2) facing the surroundings of the casing (2) changes at least once. The invention further relates to a method for producing a compressed gas container (1).
Abstract:
The present invention discloses apparatuses, systems, and methods for controlling liquid impact pressure in liquid impact systems. The liquid impact systems include at least one gas and a liquid, the gas having a density ( PG ) and a polytropic index (κ) and the liquid having a density ( PL ). The methods include the step of calculating a liquid impact load of the liquid on the object by determining a parameter Ψ for the system, wherein Ψ is defined as ( PG/PL )(κ-1)/κ. The systems are also configured to utilize the parameter Ψ. The parameter Ψ may be adjusted to increase or reduce the liquid impact load on the system. Automatic, computer-implemented systems and methods may be used or implemented. These methods and systems may be useful in applications such as LNG shipping and loading/off-loading, fuel tank operation, manufacturing processes, vehicles dynamics, and combustion processes, among others.
Abstract:
The present invention discloses a bellows (5) for use in a fluid container (1) , wherein the fluid container (1) is arranged so as to contain a first fluid comprising a liquid phase (7') and a gas phase (7' ') , and wherein the bellows (5) is arranged so as to separate said first fluid (7', 7' ') from a second fluid (9) transported into the bellows (5) from the exterior of the container (1) . In a preferred embodiment, the bellows (5) , when filled, is arranged so as to occupy a volume portion of the second fluid (9) and, when emptied, is arranged so as to contain substantially no volume portion of said second fluid (9) . The invention also concerns a method related to transport and/or discharging of a container (1) , wherein the volume of said first fluid (7', I1') of the container (1) is replaced by a second fluid (9) filled into the bellows (5).
Abstract:
The present invention discloses a bellows (5) for use in a fluid container (1) , wherein the fluid container (1) is arranged so as to contain a first fluid comprising a liquid phase (7') and a gas phase (7' ') , and wherein the bellows (5) is arranged so as to separate said first fluid (7', 7' ') from a second fluid (9) transported into the bellows (5) from the exterior of the container (1) . In a preferred embodiment, the bellows (5) , when filled, is arranged so as to occupy a volume portion of the second fluid (9) and, when emptied, is arranged so as to contain substantially no volume portion of said second fluid (9) . The invention also concerns a method related to transport and/or discharging of a container (1) , wherein the volume of said first fluid (7', I1') of the container (1) is replaced by a second fluid (9) filled into the bellows (5).
Abstract:
La plate-forme structurelle (11) du véhicule comporte deux réservoir (T1) et (T2) pour le stockage sur un véhicule de fluides sous pression. Chaque réservoir comporte au moins un réseau de cellules (2) connectées entre elles via des orifices (3), les orifices étant conformés de façon à ce que le flux de fluide engendré par la consommation de fluide nécessaire à l'utilisation du véhicule ne présente que des pertes de charge n'affectant pas ladite utilisation, et étant conformés de façon à ce que, en cas de rupture d'une ou de quelques cellules (2), le flux de fuite provoque des pertes de charge suffisamment importantes pour en limiter le débit.
Abstract:
The invention can be used for the pressurised storage of gases. The aim of the invention is to provide a pressurised container consisting of fibre-reinforced plastic with flat or practically flat lids. To achieve this, wound axially aligned reinforcement structures run through the interior of the body and absorb the major part of the required forces on their plane of alignment. The invention is characterised in that fibre strands are distributed uniformly over the cross-sectional surface of the cylindrical pressurised container, are aligned axially and fixed to flat or practically flat lids. In one advantageous embodiment of the invention, a container is formed by the spiral winding of an essentially unidirectional fibre-layer, which is thicker at its edges. Reinforcement layers, which are arranged in a circumferential direction and exert a radial action, cover the reinforcement strands or the spirally wound unidirectional fibre-layer, said layers forming the casing of the pressurised container.
Abstract:
The present invention relates to a vessel for dispensing and recovering of technical and medical gases and system for delivery and recovery of technical and medical gases.