隔声

对虚拟仪器技术的含义、优势、发展概况及应用程度等作了介绍，并基于B&KPULSE系统，对虚拟仪器技术在水声材料隔声测试中的应用开展了实验研究。

In this paper , virtual instrument technology is introduced simply . Based on B & K PULSE system , sound insulation measurement for underwater acoustical material by virtual instrument technology is investigated detailedly .

以声学和隔声理论为基础，以计算机数值积分计算为手段，结合实验室测量，着重分析了夹芯为聚苯乙烯泡沫的CS墙板的隔音性能，同时，讨论了影响CS墙板隔音效果的各种因素。

Based on the theories of sound insulation , the sound insulation performance of CS wall slab with foamed polystyrene is analyzed by the qualitative way as well as the quantitative way with the numerical integration of computer .

用SEA法研究板及加筋板的隔声量

The Sound Transmission Loss of the Panel and the Ribbed Panel Studied Using SEA Method

PMMA塑料板在道路隔声屏障中的应用

An Application of the PMMA Plastic Board for Road Traffic Noise Barrier

最后研究了挤出成型法制备隔声复合材料的工艺参数，并实现了柔性PVC基隔声复合材料的连续化生产。

Through studying the parameters of extruding molding , the industrialization of flexible PVC-Composite sound insulation material was realized at last .

GRC轻质隔声复合墙板的施工及其隔声性能测试

Construction of GRC soundproof light composite wall sheet and its soundproofing performance test

MCE的A·β值与放射微球所测MBF高度一致和相关，缺血和梗塞区触发间隔声强度曲线与灌注MRI时间信号强度曲线表现一致。

The time intensity curves of MCE and perfusion MRI in ischemic and infarcted regions showed more consistency .

三维时域有限差分法计算金纳米粒子尺寸与SERS活性的关联用三维时域有限差分法研究随钻声波测井仪器隔声体的设计

Size Dependent SERS Activity of Gold Nanoparticles Studied by 3D-FDTD Simulation Designing Isolator of Logging-While-Drilling Acoustic Tools Using Three-dimensional Finite-difference Time-domain Method

根据声学原理设计了制作新型隔声材料的方法，以及据此制成以PVC和橡胶的共混物作为基料，掺入其它成份的功能性复合材料。

Base on the acoustic principle , a method of a new-type of sound-proof material has been designed and prepared by using PVC and rubber mixed material as base and other composite materials .

利用结构-声耦合分析法，预测了克莱斯勒Viper仪表板及凯迪拉克CTS仪表板在中低频范围内的隔声性能。

The sound insulation performance of Chrysler Viper dash and Cadillac CTS dash in low-mid frequency range were predicted with this method .

同时设计增加隔声预测设计、可调节外遮阳、CFD模拟优化、隔音窗、过度季节新风利用，删减措施地板辐射采暖、入住前加强通风。

At the same time , increase measures : the sound insulation design , adjustable sunshade , CFD simulation optimization , soundproof Windows , outside fresh air using excessive season , reduce measures : floor radiant heating , strengthen ventilated before check-in .

为研究材料的吸声效果和隔声效果，通过边界元法（BEM）对特定的吸声模型、隔声模型进行了声学分析，为实验提供了理论支持。

In order to review the functions of absorbent and insulation property of materials , models are built and acoustic results are analyzed with BEM ( Boundary Element Method ), thus the experiments for evaluating materials are supported .

QTC复合砌块是一种新型的墙体材料，具有隔声、防火、轻质墙吊挂力大、施工方便的特点。

The QTC compound building block is a new kind of wall material and has features such as sound isolation , fire protection , large lifting capability and easy construction and so on .

将聚氯乙烯与无机超细材料混合，研制了一种新型复合隔声材料，其平均隔声指数为20dB左右。

A new soundproof composite which is good in soundproof was made by blending polyvinyl chloride ( PVC ) and superfine inorganic material .

在此基础上，设计制作了全封闭型的实验性隔声罩，取得了25dB（A）的降噪效果。

On the basis of these , all-closed experimental acoustic hood has been developed and gained 25dB ( A ) effect of noise reduction .

核潜艇用G-39型隔声密封材料释放气体测定及卫生学评价

Measurement of Gases Released by Type G-39 Sound Isolating and Sealing Material Used aboard Submarines and Its Medical Evaluation

按照声号筒设计原理，研究设计了JQF型低噪声局部隔声罩风笛装置。

According to air horn design theory , JQF low noise air horn device with partial acoustical enclosure has been designed .

提出采用微穿孔板制作局部隔声罩用于降低NJI043DE汽车的噪声。

In this paper , a local sound insulation cover made of micro-perforated plate is used to reduce the noise of vehicle NJI043DE .

本文在分析S1A02燃气轮机噪声及频谱的基础上，给出了S1A02箱装体的相关隔声设计参数，并进行了隔声计算。

Based on the analysis of S1A 02 gas turbine noise and frequency spectra the authors have provided the related acoustic design parameters for the S1A 02 gas turbine package .

目的：评价G-39型隔声密封材料能否用于核潜艇舱室。

Purpose : The study was carried out to evaluate whether type G 39 sound insulating and sealing material can be used aboard submarines .

通过对实验和计算结果的对比分析，证明隔声去耦材料在200Hz以上能明显减小结构振动和降低辐射噪声。

After the experiment results and the calculation result analyzed and compared , it shows that the isolated sound and decoupled material can reduce the structural vibration and radiated noise clearly above 200 Hz .

根据对该降噪装置的技术要求，所设计制造完成的隔声房降噪量达32dB（A）。

According to technical requirements for the sets of suppressing the noise , sound insulation house is designed and made , whose value of suppressing the noise is 32dB ( A ) .

测试结果表明，在声频125～1600Hz的范围内，极化后的吸声性能增加，而隔声量在低频增加，在中高频（500Hz以上）降低。

The results show that in the frequency range of 125 ~ 1 600 Hz , the acoustic absorption performance improved , but the soundproof property improved at the low frequency and decreased beyond 500 Hz .

在控制工厂二层楼顶的风机群及冷却塔群的噪声工程中，复式隔声屏获18dB（A）的降噪效果。

The engineer controlled noise from fans and cooling towers set on the top of building 's second story within a factory . An complex screen of sound insulation acquired effect 18dB ( A ) .

文章重点介绍在机械通风和不影响建筑隔声实验室原有的实验功能与结构的前提下如何对建筑隔声实验室进行改造以获得背景噪声低于15dB（A）的混响场实验环境。

This paper shows how to redesign the building acoustic sound insulation lab without altering its function and structure to gain a reverberation environment of which the background noise level is lower than 15dB ( A ) when the ventilation system is working .

经消声、隔声等声学措施后，进风口和工人操作点的噪声强度分别降低33和10dB（A）以上，达到了预期的效果。

With the treatment of acoustic measures of noise elimination and sound insulation , the reducing of noise level at enter port and operating point exceeds 33dB ( A ) and 10 dB ( A ) respectively , this comes to the desired results .

研究结果还表明，耳塞对人体的不适感大于耳罩，但是在强噪声（80dB（A）以上）环境下，隔声量大的耳塞的佩带更有利于人体平衡的维持，有利于作业安全。

The experimental results indicated that using of ear plug was more discomfort than using ear muff , but in strong noise environment ( higher than 80dB ( A )) , ear plug had better effect on body balance .

在一个声学实验室内，对经过多种试验性改进的隔声机组上，进行了系统噪声试验和冷却空气吸入和排出系统等的试验，从此机组测得了70dB（A）的噪声值。

Systematic noise testing of an enclosed plant with various modifications based on in-situ experimental work , and tests on cooling air intake and exhaust systems , etc , in an acoustic laboratory , a noise level of 70 dB ( A ) was obtained for the plant .

通过采取消声、吸声、隔声等综合治理措施，使3排风塔噪声对周边环境的夜间影响由65.7dB（A）降为50.2dB（A）。

This paper introduces some synthesis control steps such as noise elimination , sound absorption and sound insulation and so on . And these steps have made the environmental influence of the 3 # wind tower reduce from 65.7dB ( A ) to 50.2dB ( A ) .

煤磨机局部式隔声罩的设计与应用

The Design and Application on the Noise Control of Coal Mill