Study Of Sound Insulation And Structural Optimization Of Light Composite Wall Sheet

At industrial plants, public buildings and high-level architecture, the choice of the wall and the space separating materials, as a result of the traditional clay brick wall of their self-important, the total area occupied by many, the construction of long cycle and high prices, inconvenience disassembly, re-use of low flow disadvantage of poor, more and more new type of lightweight composite wall has been replaced. However, noise performance and light weight wall panels of the acoustic properties of clay brick wall compared to the larger gap, as far as the literature shows that in general the average 24cm of brick wall at 40 dB sound insulation around noodle density 20kg / m~* m of The average noise volume of the wall of light is only 30 dB. How to effectively improve the sound insulation wall light has become a question of light composite wallboard constraints to further promote the use of the main factors, while light acoustic performance of wall panels has also become necessary to resolve technical problems.In this paper, the actual project - Jinan Iron and Steel Gas-fired power plants in two gas compressor room noise against the background of the comprehensive management of the project to plant the wall of light as the research object to how to improve the acoustic performance of lightweight panel title for the purpose of legislation to study. Its main tasks are:1, Analysis of the infinite elastic body and visco-elastic wave propagation theory in the application of acoustic advantages and disadvantages, application methods and theory of wave propagation transfer matrix method for light wallboard made a theoretical analysis.2,Using the national standard reverberation chamber method and the standing-wave-tube method , make the light panel on the experimental specimen.3, Through the above-mentioned theoretical and experimental validation to identify weak links in acoustic structure, working conditions for different wall panels made of light structural optimization design.4, According to acoustic theory, the pressure on coal plant room noise analysis, the adoption of measures to improve light panels to the engine room noise in the coal comprehensive management of pressure to be cost-effective engineering applications.