結構噪聲 的英文怎麼說
中文拼音 [jiēgòuzàoshēng]
結構噪聲
英文
structural noise-
Abstract : this paper describes the classical mathematic model of bolometer, the effect of thermal isolation and noise on detector performance are also discussed
文摘:總結了非製冷測輻射熱計的經典數學模型,並分析了探測器熱絕緣結構和噪聲對性能的影響,指出了性能改進和優化的基本途徑。Fractal statistics, noisy chaos, and the fmh
分形結構,噪聲混沌,和fmh 。Chapter 6, according to the certain motorcycle, it describes structural radiation yawp, rolling bearing, piston whack, yawp of matching gas of valve cam, gear mesh yawp, burning yawp and the yawp of exhaust and inhaust in details
第六章介紹了對具體摩托車的結構輻射噪聲、滾動軸承、活塞敲擊、氣門凸輪配氣機構噪聲、齒輪嚙合噪聲、燃燒噪聲、進、排氣噪聲進行了全面分析。The submarine noise detected by sonar consists of two parts : propeller - generated hydro - dynamical noise, which can be greatly reduced by improving the submarine rear shape ; radiated noise from the submarine structure excited by the centrifugal forces ( moments ) of rotatory machine, which is more complicated and influenced by many factors
聲納所探測的潛艇噪聲包括兩部分,一是螺旋槳運轉帶來的水動力噪聲,二是潛艇主機工作時產生的不平衡力和力矩引起潛艇結構振動,帶動流場振動從而輻射噪聲。通過改進潛艇尾部線型設計,已將水動力噪聲降到比較低的程度,而結構噪聲則復雜得多,與許多因素有關。Comparative study on traffic noise between high way and city way
轎車車身結構噪聲性能分析與優化研究And concerning boundary conditions along piping system are properly set. futhermore, vertex sound is discussed in this paper. effect of the noise reduction about the mufflers is analysed, and a lot of trials is used to testify exist of valve noise and influence to pipe system. there kinds of mufflers are proved that they can reduce the fluid niose of pipe system by a large number of experimentation
對噪聲的抑制裝置? ?消聲器的降噪效果進行了分析,並結合實際工作建立了模擬海水管路試驗臺架,通過一系列試驗,說明閥門噪聲的存在,及其對管路流噪聲的影響,證明設計的三種結構消聲器對管路流噪聲的良好消減效果。The general research situation of underwater noise caused by ship structure is reviewed from aspects of calculation, experiment and control
摘要從船舶水下結構噪聲的計算、實驗及其控制方面,回顧了艦船水下結構噪聲的研究概況。The mute rocker arm, less noise
靜音搖臂支撐結構,噪聲更低。Structure - borne noise calculation radiation by out door cabinet of air conditioning using fem bem
法計算空調機室外機箱結構噪聲輻射Determination of airborne noise emitted by machines by, measurement of structure borne noise ; basic requirements
機器空氣噪聲的測量.結構噪聲的測量.基本要求Tests in building acoustics - measurements of structure - borne sound produced by technical appliances in buildings
建築聲學試驗.建築物內技術裝備產生的結構噪聲的測量Nuclear facilities - operational monitoring - part 1 : monitoring of structure - borne sound for loose parts detection
核設施.操作監控.第1部分:松動部件檢測用結構噪聲監We advanced a general valid method to reduce the structure radiant noise of rotary machines based on the analysis results
基於分析結果提出降低旋轉機械結構噪聲的普遍有效方法。Reciprocating internal combustion engines - test code for the measurement of structure - borne noise emitted from high - speed and medium - speed reciprocating internal combustion engines measured at the engine feet
往復式內燃機.在發動機底座處測量由高速和中速往復式內燃機產生的結構噪聲的試驗規程The noise of such structures root in the shell vibration that drove by the inner engine, when coupled with the liquid medium, the noise will affect the performance of the vessels badly
這些航行器的結構噪聲來源於內部機械激勵殼體振動,並帶動周圍流體介質振動產生聲輻射,它嚴重影響了水下航行器的整體性能。The low frequency noise of the ring - stiffened cylinder with double shell is depressed by increasing structure stiffness, the numerical simulation is adopted to evaluate the acoustics performance, find that the vibration and acoustic radiation of the structure could be depressed by increasing the structure stiffness within the discontinuous range of the low frequency
摘要通過增大雙層加肋圓柱殼的剛度降低低頻噪聲,使用數值模擬技術,評價結構的聲學性能,發現增大雙層加肋圓柱殼結構剛度,可在低頻段有限頻率范圍降低結構的振動與聲輻射。But subway can produce serious vibration and noise in its operation, and bring out sub - structural noise and vibration of building along the line. this is a kind of serious pollution to urban environment, and sometimes affects the people ’ s working and living condition nearby. this has aroused more and more publics and relevant departments to pay attention on it
但在運營過程中會產生很嚴重的振動和噪聲,並誘發沿線臨近建築物的振動和二次結構噪聲,這對于城市環境是一種嚴重的交通污染,給沿線人們的工作和生活造成了嚴重的影響,已經引起了越來越多的公眾和有關部門的重視。The frame radiated noise is one of the major noise resources of rotary machines, especially for gear case which has close shell and vibrating screen which works in vibrating ways, the frame radiated noise energy account for more than 90 % of total sound energy. so if we could not successfully resolve the problem, the noise of rotary machines would never be effectively controlled
結構噪聲是旋轉機械的主要噪聲源之一,尤其是對于如齒輪箱這類具有封閉殼體的機械和如振動篩這類以振動為主要工作方式的機械,結構振動輻射聲能占總聲能的比例甚至可以達到90 95 ,因此不解決結構噪聲問題旋轉機械噪聲就不能得到有效的控制。In view of this case, the paper mainly studied sound radiation properties of structure, sound source identification methods, main factors affecting frame radiated noise and the common way to control the noise radiated by rotary machines. the detail research shows as fellows : ( 1 ) study on sound radiation properties of box - shape structure
根據這種情況,本文以旋轉機械結構噪聲為主要對象,比較系統地對結構聲輻射的性質、聲源識別方法、結構聲的主要影響因素以及旋轉機械結構噪聲控制的普遍方法進行了研究,具體研究內容如下: ( 1 )箱形結構聲輻射性質的研究。( 3 ) study on the control mechanism of structure noise radiated from rotary machines, we build a common model of rotary machine structure noise analysis relied on the general characters of rotary machines. based on this model, we analyzed various influence factors to structure radiant noise using the union of revolution and numerical calculation method. we found that the joint stiffness between the rotor and the frame is the most sensitive parameter of structure radiant noise by calculating and analyzing
在旋轉機械結構噪聲控制方面,根據旋轉機械的基本特徵,建立了旋轉機械結構噪聲分析的簡化模型,基於該模型利用解析與數值計算相結合的方法對結構噪聲的各種影響因素進行了分析,通過計算分析發現,轉子與機體的連接剛度是機體結構聲的最敏感參數,同時各參數對結構噪聲的影響具有互補性。分享友人