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muffler
相关语句
  消声器
    A STUDY OF TRANSFER MATRICES OF TRACTOR REACTIVE MUFFLER CMPONENTS
    拖拉机抗性消声器声学子结构声传递矩阵研究
短句来源
    Study of the Sound Transfer Matrices of Internal Combustion Engine Exhaust Muffler
    内燃机排气消声器声传递矩阵的研究
短句来源
    Users Interface of Tractor Exhaust Muffler CAD
    拖拉机排气消声器CAD的用户界面设计
短句来源
    Model and Optimal Design for Muffler on Refrigerator Compressor
    电冰箱压缩机消声器建模与优化设计
短句来源
    DEVELOPMENT ON EVEN PRESSURE DIFFUSED MUFFLER FOR GJX TYPE BLAST FURNACE
    GJX型高炉均压放散消声器的研制
短句来源
更多       
  消音器
    Design of rotary muffler
    旋转式消音器的构想
短句来源
    Redesigning a suction muffler and drilling holes on the suction pipe resulted 2 dB(A) noise reduction on this kind of refrigerator,sound quality is also improved.
    在上述分析与试验的基础上 ,重新设计压缩机的吸气消音器 ,在吸气管壁钻孔 ,通过这些措施 ,使该冰箱的声功率降低了约 2dB (A) ,提高了冰箱的声质量
短句来源
  “muffler”译为未确定词的双语例句
    An Adaptive and Active Ear Muffler with Double Microphones
    自适应有源消声耳罩
短句来源
    THE CONSTRUCTION DESIGN AND THE FUNCTION TEST OF THE MUFFLER FOR PNEUMATIC ROCK DRILL
    气动凿岩机消声罩的结构设计及性能测试
短句来源
    Noise control of water cooling tower by appended muffler and insulation components
    追加隔声消声措施控制冷却塔噪声
短句来源
    A Study on Noise Control of Impedance Compound Muffler for Exhausting Cooking Oil-Smoke from Catering Trade
    排油烟通风复合消声技术的研究
短句来源
    A Study on the Structure of a New Kind of Muffler for the Mini-Engines
    用于小型发动机的新型排气消声结构
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  muffler
Given the geometric dimensions of the muffler as input, the muffler performance is obtained as the output.
      
This is combined with transfer matrices of other elements (upstream and downstream of this perforated element) to predict muffler performance like noise reduction, which is also measured.
      
This paper describes the authors' distributed parameter approach for derivation of closed-form expressions for the four-pole parameters of the perforated three-duct muffler components.
      
Noise reduction with perforated three-duct muffler components
      
Among the three cases of experimental condition, with a spring constant k=0.75, 0.70 and without muffler valve, the exhaust performance was high in case active muffler valve spring constant k=0.70.
      
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Based on the theory of the viscous damping of sound wave in tube, the acoustic transmission property of the perforated plate in vactive muffler is analyzed in the presence of airflow. The experimental results show that acoustic resistance of perforated plate is related to plate thickness, aperture diameter, numbers of aperture, acoustic frequency and airflow velocity.

本文利用声波在管中粘滞阻尼方面的理论,研究了存在气流时穿孔板结构的声传递特性。研究表明:穿孔板的声阻与孔板厚度、孔径、穿孔数目、声波频率和气流速度等因素有关。

Based on the evaluation methods of the acoustic properties of an exhaust muffler, the techniques in the development of a test bed of the acoustic are presented. Besides, some problems are enumerated meriting attention in its development.

在综合当前排气消声器声学特性评价方法的基础上,介绍了排气消声器声学特性试验台的研制技术,提出了研制过程中应注意的几个问题.

The transfer matrices of twelve basic tractor reactive muffler components with mean floware established,based on the acoustic transfer matrix theory. As a check,two examples arecalculated and good agreement exists between the calculated and measured results at most offrequencies. The better agreement will exist if the noise effect generated by air flow can betaken into consideration. Nevertheless,the acoustic silencers can be designed with these ma-trices successfully and conveniently in engineering practice....

The transfer matrices of twelve basic tractor reactive muffler components with mean floware established,based on the acoustic transfer matrix theory. As a check,two examples arecalculated and good agreement exists between the calculated and measured results at most offrequencies. The better agreement will exist if the noise effect generated by air flow can betaken into consideration. Nevertheless,the acoustic silencers can be designed with these ma-trices successfully and conveniently in engineering practice. The results studied in this papercreat a favourable condition for the optimum design of tractor reactive exhaust mufflers.

以消声器传递矩阵分析方法为基础,给出了12种拖拉机抗性消声器声学子结构的声传递矩阵。以传递损失为评价指标,实验验证了两个消声器的声学性能。本文研究结果,为进行拖拉机抗性消声器的优化设计创造了条件。

 
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