Floating floor air sound insulation detection method

Abstract

The invention relates to a floating floor air sound insulation detection method which comprises the following steps: step a, establishing a laboratory which comprises a sound source chamber and a receiving chamber that are communicated through a test hole and are respectively provided with sound insulation doors; step b, carrying out measuring point and sound source arrangement; to be specific, arranging a plurality of sound sources and a plurality of measuring points in the sound source chamber and the receiving chamber, determining coordinate positions of the sound sources and the measuringpoints, and installing test pieces at the positions of the measuring points; and step c, calculating an average sound reduction index of the test pieces. According to the sound insulation detection method, the sound insulation index of the floating floor is detected by arranging the plurality of sound sources and the plurality of measuring points in the sound source chamber and the receiving chamber, and the sound insulation index of the floating floor is obtained by calculating the average sound insulation index of the plurality of measuring points.

Description

technical field [0001] The invention relates to the field of floating floor processing and detection, in particular to a method for detecting airborne sound insulation of a floating floor. Background technique [0002] During the voyage of the ship, the larger vibration and noise from the bottom of the ship to the bottom of the cabin will have a great impact on the physiology and psychology of the people in the cabin. The ship has sailed in a humid marine climate for a long time, and the humidity in the cabin is usually high. Under the cabin air-conditioning operation and the influence of the environment, the gap between the sound-absorbing board or shock-absorbing board decorated on the deck and the steel enclosure is easy to flow into the air condensation water , There is a problem of water ingress and corrosion of shock absorbing panels and sound-absorbing panels, which affects their use. In order to prevent noise and vibration, necessary vibration reduction, sound insula...

AI Technical Summary

Problems solved by technology

The ship has sailed in a humid marine climate for a long time, and the humidity in the cabin is usually high. Under the cabin air-conditioning operation and the influence of the environment, the gap between the sound-absorbing board or shock-absorbing board decorated on the deck and the steel enclosure is easy to flow into the air condensation water , there is a problem of water ingress and corrosion of shock absorbing panels and sound-absorbing panels, which affects their use. In order to prevent noise and vibration, necessary vibration reduction, sound insulation and noise reduction measures must be taken

The traditional method is mainly to use shock absorbing boards and sound-absorbing boards to decorate on the deck. After the later reformation, the floating floor is mainly used for installation at present. The floating floor plays the role of noise reduction, insulation and fire prevention. In order to ensure the use effect of the floating floor and Quality, it is necessary to test the noise reduction and fire performance of the floating floor samples. Take the noise reduction performance test as an example. At present, when the floating floor samples are tested for noise reduction performance, it is mainly through the common The calibrator conducts sound insulation performance testing, but the detection efficiency is low and there is no complete monitoring method. This patent provides a systematic and complete sound insulation testing method for the sound insulation performance testing of floating floors.

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