sound damping 中文意思是什麼
sound damping
解釋
隔音的-
Sound damping coefficient
聲阻尼系數 -
In order to deal with effect of the high damping, focusing probe with focused sound field is used in testing. the image device of ultrasonic c - scanning, which has functions of ultrasonic testing, pc - based control, data collection, data storage, data processing and image displaying together, is applied in testing for the sake of visual testing result
為了克服高阻尼影響，採用了具有聲束聚焦性能的聚焦換能器對不同形狀的該種復合材料工件進行檢測；為了得到直觀的檢測結果，運用了將超聲檢測與微機控制和微機進行數據採集、存貯、處理、圖像顯示集合在一起的超聲c掃描成像技術，並得到了工件內部缺陷的橫截面圖。 -
Matlab procedure is coded to compute the far - field sound pressure levels of the shell excited by radial point force. the influences of modal truncation, stringers, bulkheads and damping on the shell ' s far - field sound pressure are analyzed, laying down the basis for accurate analysis of the sound radiation from fluid - loaded reinforced double cylindrical shells
本文用matlab編製程序求解了單層殼在徑向激勵力作用下的遠場聲壓級，分析了模態截斷數、縱骨、艙壁板、結構阻尼等因素對殼體遠場輻射聲壓的影響，為準確計算加筋雙層殼在水下振動和聲輻射特性奠定了基礎。 -
The analytical mode is based on the theory of sound propagation in layered media. the concept of equivalent parameters is established. the absorption of sound energy by damping layer ' s is represented by use of complex sound impedance
解析模型以分層介質中的波動理論為基礎，建立了等效參數的概念，並運用聲阻抗的復數表示法把阻尼層對介質層聲能吸收的影響都考慮進去，通過比較敷設消聲覆蓋層前後多層傳遞損失的差異來獲得消聲層的效率。 -
However, few people actually understand precisely what the term means, what the consequences of a particular damping factor rating might be for the ultimate desired result ( sound reproduction
然而，只有很少人真正能夠理解這個術語的準確含義，了解某一特定的阻尼因子量度如何能對最終聲音重放的結果產生影響，或者有那些因素和系統或阻尼因子有關。 -
( 3 ) introducing the proportional damping, the finite element formula of structural - acoustic coupled system lined with sound absorbing materials is obtained. mode - superposition technique for modal frequency response analysis of coupled structure - acoustic systems is also used to deal with the sensitivities of the eigenvalues and eigenvectors of coupled systems for the purpose of reducing cavity interior noise in theory
討論了阻尼降噪問題，建立了有阻尼聲振耦合系統的有限元模型，採用振型疊加法，將系統位移轉換到以固有振型為基向量，進行結構壁面有吸聲材料的聲振耦合系統響應的有限元分析與靈敏度分析，推導了比例阻尼條件的靈敏度計算公式。 -
Xu m b, zhang x m. structural power flow in a floating raft isolation system consisted of constrained damping beam. j. of sound and vibration, 1997 ( 1 )
金咸定.船舶動力響應和控制進展.第五屆船舶力學委員會全體會議專集，綿陽， 2002 -
A new type of wavelet - exponential damping wavelet is constructed to detect the knocking sound caused by mechanical faults in an engine, experimental results show that by this wavelet effective features of those faults can be extracted from noise signal
為了識別發動機噪聲信號中表徵故障的間歇性撞擊聲，本文構造的一種新型的小波指數衰減型小波函數，它能有效地識別出間歇性撞擊聲。 -
Nowadays, in many fields such as automobile, communication apparatus, automation facilities, electronic products, electrical appliances, the components of insulation, heat preservation, vibration damping, sound insulation, cushions and seal are becoming essential
今天，在車輛、通訊設備、自動化設備、電子產品、電器等眾多領域，絕緣、保溫、減震、隔音、襯墊和密封之用的零部件已經不可或缺。 -
Regarding the suspension system as a substructure ( subsystem ) appended on the car body, and considering the vibration transfer effect of the suspension system for the displacement excitation induced by unevenness of road surface, an explicit formula about the quantitative relationship between the sound pressure of low frequency interior noise and some of the suspension characteristic parameters of a vehicle, i. e., the stiffness, the damping, the under suspension mass of suspension system, and the radial stiffness, the radial damping of tire, is deduced based on the dynamic substructure modification method for structure - acoustic coupling analysis of an automobile ' s passenger compartment
摘要基於車身乘坐室聲振耦合的動態子結構修改方法，將汽車懸架系統視為附加於車身上的子結構（子系統） ，並結合懸架系統對路面不平度位移激勵的振動傳遞效應，揭示出車內低頻噪聲的聲壓值與懸架系統剛度、阻尼、非懸掛質量以及輪胎徑向剛度、徑向阻尼間的直接定量關系。
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