通过调整复合板参数有效改善材料的吸声性能；
The acoustic properties of materials can be improved effectively by adjusting the parameters of composite plate;
因此多孔金属材料的吸声性能越来越受到人们的关注。
Therefore the porous sound-absorbing properties of metal materials is receiving increasing attention.
离心玻璃棉属于多孔吸声材料，具有良好的吸声性能。
Centrifugal glass cotton belongs to the porous sound-absorbing material, have good sound-absorbing performance.
本文通过试验探讨了四种覆面展对玻璃棉板吸声性能的影响。
This article presents the experimental results concerning the effects of four types of covering layers on the sound absorptive property of a fiber glass board.
并根据实验探讨了吸声末端的吸声性能对隔声量测试的影响。
The influence of the properties of the absorbent ending on the test results were discussed.
具有质轻、导热系数小、吸声性能好、不燃、化学稳定性好等特点。
With light, small coefficient of thermal conductivity, sound absorption performance is good, not burning, the chemical stability is good wait for a characteristic.
而在多孔金属材料一侧添加背衬是一种提高吸声性能的有效可行的方法。
Adding a back lining at one side of the porous metal material is an effective and workable way to improve its sound absorption properties.
结果表明，不同背衬对吸声覆盖层吸声性能的影响具有明显不同的特性。
The results show that the influences of various backings on the acoustic characteristics of anechoic coating are obviously different.
结果表明，对非均匀层进行分层后，结构在低频时的吸声性能有所提高。
When the non-homogenous layer is divided, the sound absorption performance of the structures is increased in low frequency.
采用前驱体微球法制备闭孔聚酰亚胺泡沫，并对其吸声性能进行了研究。
The closed cell polyimide foams were fabricated by foaming the precursor balloons, and the foams' acoustic absorption properties were tested.
应用有限元方法计算静水压力变化下几种橡胶吸声结构的形变和吸声性能。
We applied the finite element method to study the variation of sound absorption structure and performance of rubber material under variable hydraulic pressure.
应用有限元方法计算静水压力变化下几种橡胶吸声结构的形变和吸声性能。
The results show that the variation of static hydraulic pressure does not significantly affect the deformation and sound absorption performance of the structure with compound cavum.
通过分析影响多孔金属材料吸声性能的主要因素，推导出材料的最佳厚度范围；
This paper derives the best range of thickness of the materials by analyzing the main factors influencing the sound absorption properties of porous metal materials.
简要介绍了舰艇用新型阻尼吸声尖劈的材料配方、阻尼性能、尖劈结构、吸声性能。
This paper deals with a new type damping sound-absorption wedge for ship and its material formulations, damping properties, wedge structure, sound-absorption.
就不同蛭石粉含量对橡胶吸声件的力学性能、阻尼性能及吸声性能的影响进行了研究。
The effect of different vermiculite contents on mecanical, damping and sound-absorption properties of rubber sound-absorption structures was introduced.
本实用新型公开了一种容易加工的，遮覆性好的，吸声性能很好的微穿 孔吸声膜片。
The utility model discloses a micro-perforated sound absorption patch which is easy to process and has good covering ability and excellent sound absorption performance.
铝硅闭孔泡沫铝的孔隙率和厚度对其吸声性能影响显著：吸声系数随孔隙率增加而增加；
The porosity and thickness affect markedly on the sound absorption property of Al-Si closed-cell aluminum foam: the sound absorption coefficient increases along with increasing porosity;
着重讨论了岩棉含量、厚度、发泡时间和发泡温度等因素对吸声材料的吸声性能的影响。
The effects of thickness, the heating temperature, the heating time and so on were stressed.
还对乙丙橡胶用量、增塑剂用量、发泡剂用量和岩棉用量对材料吸声性能的影响做了研究。
In the present paper, the effects of EPR, blowing agent, plasticizer and rock-wool content on the sound absorption coefficient of the foamed materials were also studied and analysed...
还对乙丙橡胶用量、增塑剂用量、发泡剂用量和岩棉用量对材料吸声性能的影响做了研究。
In the present paper, the effects of EPR, blowing agent, plasticizer and rock-wool content on the sound absorption coefficient of the foamed materials were also studied and analysed. Optimum base...
介绍了泡沫铝的吸声特性，研究了泡沫铝的厚度、孔隙率、压缩率、空腔对其吸声性能的影响。
The sound absorption properties of foamed aluminum are introduced and the effects of thickness, porosity, compression ratio, air cavity depths on sound absorption property are studied.
结果表明：压缩率达4 0 %时，可获得最佳吸声效果，随密度的减小泡沫铝吸声性能增大。
The results show that the best sound absorbing property can be obtained at a critical compressive ratio 40%, The sound absorbing property increases with the decrease of density.
结果表明：梯度孔径多孔铝合金的吸声性能较现有多孔铝合金提高约55%，其宽频吸声性能优异。
The results show that the sound absorption property of gradual porous aluminium alloy is improved by about 55% compared with normal porous aluminium alloy.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
开发非织造吸声材料，可以替代目前正在使用的木质材料、无机纤维材料等等，得到吸声性能更优的产品。
The development of non-woven sound-absorbing materials, which have better sound absorption properties, can replace wooden materials, inorganic fiber materials currently in use.
采用二次发泡工艺制备出一种声学性能优良的聚氨酯多层复合泡沫吸声材料，并对其吸声性能进行了研究分析。
This research provided a new technique that two procedure foaming technique to produce composite Polyurethane foam, and made a research on its sound absorption property.
根据高分子材料中三维应力应变关系建立了三维传递矩阵数学模型，模拟梯度聚氨酯在不同入射角下的吸声性能。
A three-dimensional transfer matrix model was presented to simulate the sound absorption coefficients of the graded polyurethanes based on relation of stress and strain of polymers.
研究了多层高分子复合结构在斜入射声波作用下，各层材料动态力学性能参数和几何参数变化对其吸声性能的影响规律。
The aim is to study the effects of dynamic mechanics properties and geometrical parameters of each layer material on the sound absorption properties of the multilayered polymer composites.
研究了压缩率和密度对发泡法制备的泡沫铝样品吸声性能的影响，与报道的日本用发泡法制备的泡沫铝样品的研究结果进行了比较。
Influence of compressive ratio and density on sound absorbing property of foamed aluminum made by bubbling method has been studied and compared with that of Japanese sample.
采用驻波管法测定定向结构刨花板的吸声系数，分析比较了定向结构刨花板与砖、混凝土吸声性能的差异。结果表明，定向结构刨花板具有良好的吸声性能。
The sound absorption coefficiet of osb was tested by the stationary wave method. the results showed that the osb had good sound absorption property compared with brick and concrete.
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