noise equivalent power

noise equivalent power的基本解释

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噪声等效功率

与noise equivalent power相关的网络例句 [注：此内容来源于网络，仅供参考]

Noise can be reduced by about 2 dB by using oil-resistant rubber isolator to reduce solid-borne sound transmission; the setting-up of semienclosed noise barriers can not only reduce the work region's noise of workshop by 13 dB, but also adapt to the gas's characteristic involved with H2S, CO, and other poisonous components without supplied mandatory ventilation; locating the noise absorbers on the walls and ceiling of workshop can reduce noise by 8 dB; the exhaust silencer's elimination volume can reach above 30 dB which is designed in accordance with the exhaust noise spectrum characteristic of gas-combustion generator. By the combination of these measures, the noise of the gas- combustion generator will be under effective control, so that the gas power plant's noise pollution problems can be resolved.

通过选用耐油性好的橡胶隔振器减少固体传声，可降低噪声约2 dB；设置半封闭式机组隔声屏障可降低生产车间工作区域内的噪声达13 dB，并且适合瓦斯发电气源中含有H2S、CO等有毒有害气体的特点，不需增加强制通风措施；在生产车间四周墙壁和顶棚上敷设吸声体，最大可降低空间噪声8 dB；根据瓦斯发电机排烟噪声频谱特性设计的阻抗复合式消音器的消音量可以达到30 dB以上。

In recent years, the products sell well in all my works more than 20 provinces, cities more than 100 units. Since 2004 Zhejiang usha Hill Power Plant, Huaneng Shantou Power Plant, Power Plant Chiuchow, Jiangsu Taicang Power Plant, Sanmenxia Power Plant, Jiaxing Power Plant, Inner Mongolia Tuoketuo power plants, the first thermal power plant in Baotou, Beijing Thermal Power 1 Factory, Yimin Power Plant in Inner Mongolia, China Datang Group, Xiangtan Power Plant, Thermal Power Engineering Corporation, Guangdong door to power plants, Thermal Power Engineering Corporation, Guangdong branch in Zhuhai, Guangdong Thermal Engineering Corporation Huilai electricity branch, the People's Republic of Mongolia Ulan Bartok thermal engineering for more than 600,000 kilowatts generating units, as well as steam ha,, North pot, pot up, Wuxi Boiler Factory, Yantai Boiler plant 200MW-1000MW units provide high-pressure alloy pipe fittings and the main steam, reheat steam Factory of piping; for Qilu Petrochemical, Baling Petrochemical, Yanshan Petrochemical, Yangzi Petrochemical, Qingdao large oil refineries, the Shenhua coal-oil, Yangzi Petrochemical - BASF Ltd. 800,000 tons / year ethylene project in Cangzhou Refinery, Shijiazhuang Refining Plant, Jiuquan Satellite Launch Center on the 10th works, the United States Motorola, The Great Wall Aluminum Company, Tianjin Tiantie Metallurgical Group Co., Ltd., Jiaozuo of Electricity Group, Aerospace Group, products are also exported to Kazakhstan, Japan, Bangladesh, Philippines and Thailand country.

近几年来，我厂产品畅销全国20多个省、市100多个单位。04年以来为浙江乌沙山电厂、华能汕头电厂、潮洲电厂、江苏太仓电厂、三门峡电厂、嘉兴电厂、内蒙古托克托发电厂、包头第一热电厂、北京热电一厂、内蒙古伊敏发电厂、中国大唐集团湘潭电厂、广东火电工程总公司可门电厂、广东火电工程总公司珠海分公司、广东火电工程总公司惠来分公司、蒙古人民共和国乌兰巴托热电工程等60万千瓦以上发电机组、以及哈汽、武锅、北锅、上锅、无锡锅炉厂、烟台锅炉厂200MW-1000MW机组提供高压合金管件及主蒸汽、再热蒸汽工厂化配管；为齐鲁石化、巴陵石化、燕山石化、扬子石化、青岛大炼油、神华煤制油、扬子石化-巴斯夫有限公司80万吨/年乙稀工程、沧州炼油厂、石家庄炼油厂、酒泉卫星发射中心十号工程、美国摩托罗拉公司、长城铝业公司、天津天铁冶金集团有限公司、焦作化电集团、宇航集团，产品还出口到哈萨克斯坦、日本、孟加拉、菲律宾及泰国等国家。

Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.

本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施，在此基础上，结合SC7080A和SC6350B汽车的车外加速噪声水平及现状，综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法，对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案，针对SC7080A，主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器，抑制空气滤清器壳体表面和进气口两处的噪声辐射，根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器，并进行了工程化设计和试制；针对SC6360B，主要改善了排气消声器在高频段的消声性能，对罩壳类零件进行了结构改进，降低了其表面噪声的辐射，并对发动机舱进行了吸声、隔声处理，设计了发动机隔声罩。