An acoustic mount is described for damping vibrations between a primary structure of a building and a secondary structure of a building and which has a vibration damper interposed in use between the primary and secondary structures. The vibration damper is resiliently compressible in the axial direction and has at least one resiliently compressible damper element which is elongated in the axial direction so that the axial length of the damper element is greater than half of a transverse width thereof. The damper element reduces in cross sectional area in the axial direction; has a convex outer surface in planes containing the axial direction; and possesses non-linear axial deflection or compression characteristics under a range of static loading conditions enabling effective vibration damping or vibration isolation for a substantial range of loadings of the acoustic mount in use. Damper elements have a continuous convexity of outer surface extending to a tip and the continuous convex outer surface in a plane containing the axial direction has a curved shape defined by a quadratic equation, including segments of ellipses, parabolas, hyperbolas.

An acoustical isolating device used to minimize or eliminate noise or vibrations between the walls/ceilings and building structures is contemplated. The contemplated device includes a specially designed/configured steel spring with unique structural elements, cylindrical grommets, and a washer releasably affixed to one of the grommets.

Described herein is a building panel and related building systems, the building panel having a first major surface opposite a second major surface, the building panel comprising a core comprising a first body comprising a first fibrous material; and a second body comprising a second fibrous material, a veneer facing layer coupled to the core, the veneer facing layer comprising a plurality of perforations.

The present disclosure relates to plaster boards and methods for making them. For example, one aspect of the disclosure is a plaster board comprising one or more continuous layers of material disposed within a body of hardened plaster material, the first side and second side of each continuous layer of material being substantially covered by the hardened plaster material. In certain such embodiments, each continuous layer of material includes a polymer (e.g., a damping polymer) disposed on a carrier sheet. Another aspect of the disclosure relates to a method for making a plaster board that involves drying a wet body of plaster material while a continuous layer of material or precursor therefor is disposed within it.

An acoustic absorber includes a chamber formed from walls with a resistive portion providing the only communication between the chamber volume and ambient air. In some examples chamber walls enable selection or adjustment of chamber volume or resistive area, thereby altering the acoustic absorption spectrum below 250 Hz. In some examples the chamber volume contains fibrous filler material exhibiting no airflow resistance or acoustic absorption. Density and heat capacity of the fibrous filler material results in the chamber volume exhibiting compressibility of air within the chamber, for at least acoustic frequencies up to about 50 Hz, that is larger than adiabatic compressibility of air. That larger compressibility results in an increased acoustic absorption coefficient, for at least acoustic frequencies up to about 50 Hz, 50% to 100% larger than that of an identical chamber entirely characterized by the adiabatic compressibility of air.

An acoustic panel is provided that includes a first skin, a second skin and a core structure. The core structure is connected to and forms a plurality of cavities between the first skin and the second skin. The cavities include a first cavity and a second cavity. The first cavity is fluidly coupled with one or more first perforations in the first skin. The second cavity is fluidly coupled with one or more second perforations in the second skin.

A circular multi-panel acoustic baffle assembly for suspending above an occupied space, the assembly including a plurality of baffle panel units each radiating away from a common center and generally lying in a vertical plane, upper edges of the baffle panel units lying in a common imaginary surface of revolution about the center, the baffle panel units being joined by common inner and outer arcuate ribs concentric with the center, radially inner ends and radially outer ends of the baffle panel units lying on imaginary circles concentric with the center.

An exemplary power plant construction is configured to accommodate an internal combustion engine and a generator driven by the internal combustion engine, and includes a front wall, a rear wall and side walls, at least the side walls being modular walls having at least two wall modules arranged one upon the other, the wall modules being self-supporting modules having a shape of a rectangular prism, wherein the wall modules arranged one upon the other form a self-supporting wall, and wherein the uppermost wall module of each side wall includes a beam that is parallel to the longitudinal direction of the side walls and configured to function as a runway beam of an overhead crane.

A device for preventing sound transmission through a spacer tube, an aperture or a duct (1) is realized by inserting a damping body (21) which can be cost-effectively mass-produced and can be inserted through the apertures in the wall (15) without any effort and with correspondingly low cost. This eliminates the need for laborious plugging with rock wool or liquid mortar.

A circular multi-panel acoustic baffle assembly for suspending above an occupied space, the assembly including a plurality of baffle panel units each radiating away from a common center and generally lying in a vertical plane, upper edges of the baffle panel units lying in a common imaginary surface of revolution about the center, the baffle panel units being joined by common inner and outer arcuate ribs concentric with the center, radially inner ends and radially outer ends of the baffle panel units lying on imaginary circles concentric with the center.