介绍了油田泵房电机消声器结构、工作原理和特点。
The structure, operating principle and characteristics of motor muffler for pump room of oilfield have been introduced.
作者应用不稳定流动计算机模拟方法，不仅能估算排气消声器特性，还能模拟不同消声器结构对发动机性能的影响。
With the computer simulation of exhaust mufflers and IC engines, the influence of mufflers on engine performance as well as exhaust noise can be predicted.
利用此方法对多级降压消声器的结构尺寸进行优化设计。
This method is applied to designing the structure size of Multi Stage Decompression Muffler.
试验结果与仿真结果能较好吻合，表明排气消声器的仿真模型很好地反映了实际结构的声学特性。
Simulation results quite coincide with test ones, showing that the simulation model well reflects the acoustic characteristics of the real structure of exhaust muffler.
通过实验证明，蜂窝陶瓷是阻抗复合性结构，用它制成的消声器对车辆排气噪声可有效抑制。
Experiments demonstrate that the honeycomb-like ceramics has an impedance compound structure, the silencer made of which can effectively control vehicle exhaust noise.
针对抗性消声器中扩张结构和尾管引起的射流噪声问题，建立了低马赫数射流噪声有限元分析模型。
Aimed at the jet noise which is induced by the expand structure and tail tube in the resistant muffler, a finite element model at low Mach number was developed.
通过结构分析、理论计算，为S195柴油机开发了一种新型消声器。
A new muffler has been developed for S195 diesel engine based on structure analysis and theoretical calculation.
船用排气消声器的结构和气动性能是柴油机装船技术研究的一个重要组成部分。
The structure and the aerodynamics performance of marine exhaust muffler is one of the important aspects when the diesel engine is installed on the ship.
研究结果表明，三维声学边界元模型是抗性结构消声器声场分析的有效方法并具有较高精度。
The research shows that the three-dimensional acoustic boundary clement model is an efficient and highly accurate method of sound field analysis of reactive mufflers.
实验结果说明，运用双目标模糊优化技术，会使水消声器的结构设计更合理。
In experiment, the results show that double-objectives fuzzy optimization technology can be adopted with the structure design of water muffle more reliable.
随后对不同结构水消声器的阻力损失特性进行了分析。
Then the resistance loss characteristics is analyzed for the different configurations of water silencers.
对于较长或具有复杂形状的管道及消声器，提出了子结构边界元——传递关系矩阵法。
The substructure boundary element-transfer matrix method is presented for duct system of greater length or mufflers with complex geometry.
本文用消声器动态传递矩阵分析方法，以最大消声量为目标函数，对消声器的总体结构参数进行了优化。
The maximum level of muffling being taken as object function, the parameters of muffler's whole structures have been optimized by using the method of dynamic transfer matrix analysis.
按照所确定的结构制作了几何比为1：2 . 5的实验模型，模型实验结果表明，本文的数值模拟方案具有令人满意的精度，对于船用排气消声器阻力特性预估是非常有效的。
The scale of experiment model is 1 to 2.5. Model experimental results show that numerical simulation is very effective for forecast of resistance characteristics of Marine exhaust mufflers.
将子结构法和双倒易边界元法联合应用于预测具有三维复杂流存在时管道和消声器的四极参数与传递损失，阐述其基本原理与数值过程。
A substructure method and a dual reciprocity boundary element method (DRBEM) are applied to calculate four-pole parameters and transmission loss of ducts and silencers with complex flow.
内燃机排气消声器的实际消声性能既与消声器本身结构有关，又与排气噪声源性质有关。
The performance of an exhaust muffler of internal combustion engine is related not only to the construction of itself, but also to the characters of the exhaust noise source.
结构合理，组合方便，制作简单，便于安装，是一种大风量阻性蜂窝式系列消声器。
The structure is reasonable, the easy combination, the manufacture is simple, is advantageous for the installment, is one kind of great amount of wind resistive honeycomb type series silencer.
在声学方面改进了传递损失的计算方法，着重分析了穿孔结构参数对消声器声学性能影响。
In acoustics aspect, the paper improves the method of calculating transmission loss and analyses emphatically the influence of structure parameters of perforated structure to acoustic performance.
内插管结构能改善消声器的声学性能，拓宽消声频率范围，但设计它的具体长度需要根据排气频谱来选择。
Intubation structure can improve the acoustic performance of mufflers and widen the frequency range of mufflers, but its length must be designed according to the exhaust spectrum.
介绍了AFP、AXP、XXP型锅炉排汽消声器的结构原理和设计特点。
The paper describes the structure and design features of AFP, AXP and XXP type boiler blow off silencers.
这种消声器降噪效果好，且结构简单、能够改善发动机排放。
And it has good noise reducing effect, simple in structure and able to improve gas exhaust of the engine.
根据声源的频谱特性在其前后配置合理的管道式消声器、金属外壳式消声器、结构式消声器作为消声降噪的措施。
According to the spectral characteristic of the noise source, the tube-type muffler, metal-enclosure muffler, structural-type muffler can be equipped before and after the noise reduction devices.
利用此种矩阵，计算了两种结构的消声器的传递损失，并在双传声器随机激励消声器试验台上进行了试验验证。
The sound tranfer loss of 2 kind of muffler structures are calculated, then tested and verified on the double sound transferrer random exciting exhaust muffler testing rig.
在利用三维有限元法研究简单结构的消声器的声学消声性能基础上，对于复杂结构的消声器进行了声学性能预测。
The noise attenuation characteristics of complex muffler are investigated by 3D finite element analysis based on the study on simple muffler.
在利用三维有限元法研究简单结构的消声器的声学消声性能基础上，对于复杂结构的消声器进行了声学性能预测。
The noise attenuation characteristics of complex muffler are investigated by 3D finite element analysis based on the study on simple muffler.
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