It is determined that damping rings with oil content provide stability in vibration and noise reduction.
确认了含油阻尼环具有减振降噪的稳定特性。
The main researches are summarized as follows: (1) the optimal design for the most effective structure of vibration and noise reduction.
主要工作可总结为如下内容：(1)减振降噪效果最佳结构优化设计。
So how to take into account the complex factors to improve the design of the tuned mass damper is still the important issue of the automotive vibration and noise reduction.
因此如何综合考虑各种复杂因素，完善调谐质量阻尼器的设计，仍然是汽车减振降噪所面临的重要问题。
With the improvement of working and living conditions, and the implementation of stricter regulations, the reduction of engine vibration and noise has an important significance.
随着人们对工作和生活环境的要求日益提高，国家法规日益严格，控制发动机的振动和噪声具有重要意义。
Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内，达到抑制噪声和机械振动的目的。
The test and analysis about the vibration damping and noise reduction of the canned coolant pump are studied.
对核动力装置屏蔽式冷却剂泵的减振降噪进行了测试与分析。
For the washing machine noise and vibration reduction predecessors developed a series of mechanical damping Angle of approach, but there are limitations.
针对洗衣机的减振降噪前人开发了一系列机械角度的减振方法，但都存在种种限制。
Presents the design of air conditioning systems, noise reduction, vibration isolation and automatic control, Summaries the issues in design and construction.
介绍了该大楼的空调系统设计、消声减振、自动控制设计，对设计施工中的问题进行了总结。
According to the function mechanisms, polymeric noise reduction composites were classified as vibration damping, sound absorption and sound insulation materials.
降噪材料按降噪机理可分为阻尼减振材料、吸声材料和隔声材料。
According the theory analysis, the effective method is applied in actual site and noise reduction effect is obvious after vibration isolation.
依据理论分析结果，对实际现场采取了有效的隔振降噪方法，隔振后降噪效果明显。
The mechanism and methods of viscosity drag reduction are briefly discussed. Some of its applications for saving energy and materials, improving efficiency or reducing noise and vibration are given.
本文综述了几种粘性减阻方法及其减阻的机理，联系了其在水相、油相中节约能源、材料，提高速度和效率等方面的应用。
The present paper is a part of project "The technology of reduction for entire automobile vibration and noise" in Automobile Technical Institute of Hefei University of Technology.
本论文是合肥工业大学汽车技术研究院项目“汽车整车减振降噪技术”的一部分。
Based on experimental research of porous elastic road surface (PERS) in Japan, the noise reduction properties and mechanism are analyzed from porous absorption and damping vibration.
结合多孔弹性路面的试验研究，从多孔吸声和阻尼减振两个角度分析了其降噪机理和性能。
Presents the design methods of air conditioning water system, air distribution of rendition hall, air exhaust system, noise reduction, vibration isolation and automatic control.
分析了该音乐厅空调负荷的特点及其计算过程，介绍了空调水系统、演奏大厅气流组织、排风系统、空调系统消声和减振、空调自控的设计方法。
Aiming at the noise reduction of vibration signal of a rotor polluted by violent pulse noise and other stochastic noise simultaneously, the method of denoising the signal is studied.
对受强脉冲随机噪声干扰转子振动信号的滤波方法进行了研究。
Some measures of vibration damping and noise reduction are hereupon recommended.
在此基础上提出了对该机的减振降噪措施。
The outstanding repair features in a significant reduction in engine noise, vibration, wear and tear, and the number of maintenance;
超凡的修复功能显著降低发动机工作噪音、减少震动，修复磨损，减少维修次数；
Based on the analysis of vibration source, vibration transmission path and transmission characteristics, the methods of vibration isolation and noise reduction are decided.
通过分析振动的来源以及振动传递的路径和传递特性，确定了隔振降噪的方法。
Based on the analysis of vibration source, vibration transmission path and transmission characteristics, the methods of vibration isolation and noise reduction are decided.
通过分析振动的来源以及振动传递的路径和传递特性，确定了隔振降噪的方法。
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