A method and system for manufacturing a conical shaped acoustic structure. A sheet of acoustical material is cut to form individual pieces using a cutter system. Each individual piece in the individual pieces has a flat pattern for the conical shaped acoustic structure. An individual piece is positioned around a mandrel with a conical shape using an actuator system. Two edges of the individual piece are positioned for joining. The two edges of the individual piece positioned around the mandrel are joined to form the conical shaped acoustic structure.

Insulating materials which reduce heat loss are provided. The insulating materials include an air layer forming portion which forms a plurality of air layers, a lower cover portion which covers a lower side of the air layer forming portion, and an upper cover portion which covers an upper side of the air layer forming portion. Here, the lower cover portion and the upper cover portion insulate the air layers from the outside.

A layered insulation system comprising one or more layers. A variety of types of layers can be used in conjunction with one another to deliver a range of desired Low-E and/or Low-U insulation properties and/or venting choices. Some types of layers can be foam layers with foam that inhibits heat conjunction interspersed with microparticles and/or nanoparticles that reflect, scatter, abate, and/or negate infrared radiation (IR) wavelengths, including dampening Ideal Model Matrix vibrations to inhibit heat flux through an IR opaque system. Other layers can be Low-E layers, Low-U layers, primarily empty layers, and/or other types of layers.

Acoustic structures in which acoustic septa are located in the cells of a honeycomb for reducing the noise generated from a source The honeycomb used to form the acoustic structure has walls that contain convex and concave contours which make the honeycomb flexible. The acoustic septa are formed by inserting planar acoustic inserts into the honeycomb cells to form a septum cap which is friction-locked within the cell and then permanently bonded in place. The planar acoustic septum is configured to match the unique shape of the cell contours to provide desired friction-locking when inserted into the cells and desired acoustic properties after being permanently bonded in place.

A thermal insulation panel is provided for thermally insulating edifices. The thermal insulation panel contains at least one aerogel and is open to diffusion along the panel's main insulating direction.

Disclosed are a hollow pipe-sandwiching metal plate and applications thereof. The hollow pipe-sandwiching metal plate comprises a first panel, a second panel, and multiple hollow pipes between the first panel and the second panel; gaps are arranged among the hollow pipes, and the hollow pipes are connected to the first panel and the second panel by brazing. The present disclosure further includes the applications of the hollow pipe-sandwiching metal plate. The hollow pipe-sandwiching metal plate has advantages, such as light weight, high strength, low stress, high temperature resistance, pressure bearing, thermal insulation and vibration isolation. The metal plate will not deform due to thermal difference, thereby providing permanent service life of the metal plate.

An improved acoustic liner for turbine engines is disclosed. The acoustic liner may include a straight cell section including a plurality of cells with straight chambers. The acoustic liner may also include a bent cell section including one or more cells that are bent to extend chamber length without increasing the overall height of the acoustic liner by the entire chamber length. In some cases, holes are placed between cell chambers in addition to bending the cells, or instead of bending the cells.

A thermal insulation board (100) for use in thermal insulation of a structure, comprising a first face (100A) and a second face (100B) opposite to the first face (100A), the insulation board having a thickness of thermal insulation material between the first face and the second face defining the thermal insulation direction of the board (100). The thermal insulation board (100) comprises one or more gas channels (102, 104, 106) formed to the insulation material and extending between the first face (100A) and the second face (100B), and that the one or more gas channels are arranged at least partly to an angled orientation such that the first end (102A) of the channel (102) residing closer to the first face (100A) is vertically lower, in a usage position of the thermal insulation board (100), than the second end (102B) of the gas channel (102).

A thermal insulation panel is consist of an impermeable barrier and backing, a surface of low emissivity, an adhesive, a mixture of phononic cocrystals at both sides, and a support material in a honeycomb structure in between two sides. The panel reduces heat transfer and has an overall thermal conductivity in order of 10.sup.3 w/(m.Math.K), and a density of 20-100 kg/m.sup.3. The panel can be cut to any sizes to meet requirements for installation, and can be stacked or piled up to meet the requirements of thickness and thermal resistance in application.

A layered insulation system comprising one or more layers. A variety of types of layers can be used in conjunction with one another to deliver a range of desired Low-E and/or Low-U insulation properties and/or venting choices. Some types of layers can be foam layers with foam that inhibits heat conjunction interspersed with microparticles and/or nanoparticles that reflect, scatter, abate, and/or negate infrared radiation (IR) wavelengths, including dampening Ideal Model Matrix vibrations to inhibit heat flux through an IR opaque system. Other layers can be Low-E layers, Low-U layers, primarily empty layers, and/or other types of layers.