摘要:
A method of making a light weight component (28) is provided. The method including the steps of: forming a metallic foam core (11) into a desired configuration; applying an external metallic shell (20) to an exterior surface of the metallic foam core after it has been formed into the desired configuration; and attenuating the component to a desired frequency by forming a plurality of openings (34) in the external metallic shell.
摘要:
A multilayer sound absorbing sheet including a film layer having through-micro bores and apertures, and a fibrous material layer disposed on the film layer is provided. A method of absorbing sound including providing the multilayer sound absorbing sheet of the present disclosure and positioning the multilayer sound absorbing sheet between an acoustic source and a sound-reflecting surface is also provided.
摘要:
A pipe insulation system that serves as insulation for a length of pipe contains section of thermoplastic polymer foam that fit circumferentially around a length of pipe, rings of melt barrier material that fit circumferentially around the length of pipe and abut adjacent sections of thermoplastic foam, mesh around the sections of thermoplastic polymer foam and rings of melt barrier material, a metallic covering enclosing the thermoplastic polymer foam, melt barrier material and mesh, and a support band that fits circumferentially around the metallic covering and that holds the pipe insulation system against a length of pipe around which the pipe insulation resides. A ring of melt barrier material is present at the top and bottom of non-horizontal length of pipe and within any 250 centimeter distance along the length of pipe.
摘要:
The invention relates to a planking panel (B) for a structural component (1), said planking panel being designed as a sandwich component in the inner region (B1) thereof that extends in a planar manner and comprising a first skin section (11), a second skin section (12) and a core section (13) located between said two sections, wherein the core section (13) connects the first and second skin sections (11, 12) to one another in a planar manner. The planking panel is characterised in that, in order to determine damage in the core section (13), a plurality of monitoring lines (14) are arranged which extend over a planar section of the core section (13) to be monitored, wherein for applying a monitoring signal (UK) each of the monitoring lines has a first connection point (15) at a first end (14a) and a second connection point (16) at a second end (16a), wherein the monitoring lines (14) have a tear strength that ranges from 50% to 100% of the tear strength of the core section (13).
摘要:
A sandwich element for the sound-absorbing inner cladding of means of transport such as an aircraft. The sandwich element includes a three-dimensionally constructed core structure disposed between two cover layers that run substantially parallel to one another at a distance. A plurality of passages for sound transmission are incorporated in the core structure and/or in at least one cover layers, wherein at least one sound absorption layer is disposed in the area of at least one cover layer at least in parts.
摘要:
A sandwich element for the sound-absorbing inner cladding of means of transport such as an aircraft. The sandwich element includes a three-dimensionally constructed core structure disposed between two cover layers that run substantially parallel to one another at a distance. A plurality of passages for sound transmission are incorporated in the core structure and/or in at least one cover layers, wherein at least one sound absorption layer is disposed in the area of at least one cover layer at least in parts.
摘要:
The invention relates to a web-like or sheet-like semi-finished product capable of forming a polymeric foam composite material by heat treatment, which semi-finished product is formed by a web-like or sheet-like fibrous material and a mixture comprising curable resin and unexpanded thermoplastic particles of at least two different qualities with mutually different expansion temperature introduced into the fibrous material, wherein thermoplastic particles of at least one of said qualities remain unexpanded in the semi-finished product. The invention also relates to a polymeric foam composite material formed by such a semi-finished product. Furthermore, the invention relates to methods for producing such a semi-finished product and such a polymeric foam composite material.
摘要:
The present disclosure can provide an aerogel composite. The aerogel composite comprises at least one base layer having a top surface and a bottom surface, the base layer comprising a reinforced aerogel composition which comprises a reinforcement material and a monolithic aerogel framework, a first facing layer comprising a first facing material attached to the top surface of the base layer, and a second facing layer comprising a second facing material attached to the bottom surface of the base layer. At least a portion of the monolithic aerogel framework of the base layer extends into at least a portion of both the first facing layer and the second facing layer. The first facing material and the second facing material can each comprise or consist essentially of elastic fibers such as spandex, nylon, lycra, elastane, or combinations thereof.
摘要:
The invention relates to forming and dimensionally stabilising a hybrid composite (1) by a specific arrangement and a directed development of the composite characteristics, both directly between the hybrid composite components and also between the phase changes contained therein of complex hybrid composite components, by means of the specific placement/installation/aggregation of textile, micro-porous structural constituents in the interface-/ phase-change regions of hybrid composite components, in order to control the micro-structural dispersion of bonding or non-positively connecting composite-material and material portions for a simultaneously- and integrally-formed interlocking of the hybrid components.