Study On Noise Reduction Of The Optimization Design Of Natural Ventilation Acoustic Proof Window

Under the background of industrial economy is always with a thick steeltaste. There is a good example that both sides of the tall building on the street issuffering from serious pollution which comes from urban road traffic noise. Inorder to offer human a comfortable, healthy and green indoor soundenvironment, how to control urban traffic niose effectively is particularlyimportment. Solving this big problem, we use natural ventilation, soundinsulation and window insulation technique measures. The main researchcontents of this thesis are the following several aspects:First of all, the paper studies the background of the subject is summarized,it shows the necessity of natural ventilation and sound insulation window. It alsointroduces the purpose and significance of this topic, and carries on the simpleintroduction and analysis on it, then gives its importance. The related researchof sound insulation window at home and aboard guide their study on motivationand significance of natural ventilation and sound insulation window research, even including the new assumption on it. The paper introduces the contents andmethods of this research, and put forward the research framework of thedissertation.Secondly, by starting from the Taiyuan city road traffic noise, the fieldmeasurements and data collation and analysis, put forward high-rise buildingson both sides of the Taiyuan city road are suffering serious violations of trafficniose. At the same time we also make an analysis on three characteristics, whichincluding city traffic noise spectrum and transmission time, provides someinsulation design starting point for natural ventilation and sound insulationwindow. In addition, starting from the building envelope structure, there comesa conclusion that building outside the window is the weakest link of buildingenvelope insulation. In the meantime, it also presents roundedness of other antinoise measures for Street high-rise buildings, clarify the necessity of research onthe natural ventilation and sound insulation window.Thirdly, we mainly studies the related basic theory of the naturalventilation and sound insulation window, respectively, from three aspects thatthe sound insulation mechanism of double medium structure, attenuationmechanism of Resistance Muffler, and building natural ventilation mechanism.By the gradual research of these theories, providing the basis and support forthe natural ventilation and sound insulation window optimization design andanalysis. Finally, after the study of relevant sound insulation theory, it putsforward an optimization design of natural ventilation and sound insulationwindow, and has carried on the ventilation hole area determination and acousticanalysis and calculation. The result shows that the premise of this research, inthe realization of its good insulation performance, also can be very good to meetthe need of indoor natural ventilation, which is a kind of good, reasonable andeffective method for street high-rise building anti-noise, thereby creating ameaningful research on a comfortable indoor sound environment high risebuilding.