flat panel building settlement pulse sound (options) and panel for use in a flat u043fu0430u043du0435u043bu044cu043du043eu043c u0438u0437u043bu0443u0447u0430u0442u0435u043bu0435 sound

摘要

a flat panel building settlement radiate sound with an audio characteristic.the sound has a panel, which is the causative agent for the transfer of the traditional mechanical energy fluctuations of audible frequencies.the panel has a cellular core made of kraft paper, which is flexible, has a low noise and high noise characteristics u0434u0435u043cu043fu0444u0438u0440u043eu0432u0430u043du0438u044f own as well.the core is placed between the u043eu0431u043bu0438u0446u043eu0432u043eu0447u043du044bu043cu0438 coatings made from a material with a high module cabin boy, big u0442u0430u043du0433u0435u043du0441u043eu043c delta, high durability at u0440u0430u0441u0442u044fu0436u0435 we own and low noise.preferably, this material was u0430u0440u0430u043cu0438u0434u043du044bu043c u043fu043eu043bu0438u0430u043cu0438u0434u043eu043c, such as kevlar, Nomex, Conexu0438u043bu0438 Technora, each of which has these properties.facing cover attached to the core with glue, which is flexible and has high performance and high shock like acoustic u0434u0435u043cu043fu0444u0438u0440u043eu0432u0430u043du0438u044f the possibility of such as rubber adhesives.silicone adhesives and acrylic adhesives are water-based.the result of a combination of these materials with the properties of flat panel building settlement is the soundwhich shows the signal / noise ratio more than 40 db for an input signal of 85 db within the key range of sound frequencies, and it is 20 db or higheras for the flat panel sound radiator from the level of technology.in addition, dramatically improves the frequency response of the frequency band and increases the maximum permissible levels of sound pressure.