random vibration 中文意思是什麼
random vibration
解釋
不規則振動-
We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response
其次藉助ansys有限元分析軟體，對系統進行了模態分析和動力學響應分析，獲得了不同天線結構參數下的衛星?天線系統的固有特性，簡諧響應的幅頻特性，隨機振動響應的功率譜密度，以及沖擊響應的最大幅值和恢復時間等。 -
Basic environmental testing procedures. test methods. test fdc : random vibration wide band. reproductibility low
基本環境試驗程序.試驗方法. fdc試驗.寬帶的隨機振動.可再現性低 -
The bouc - wen differential equation model is used in modeling the hysteretic characteristics of these components. the pem ( pseudo excitation method ) combined with the elm ( equivalent linearization method ) is used to analyze the non - linear random vibration of such structures
採用bouc - wen等提出的微分方程模型描述進入非線性構件的滯變特性，運用虛擬激勵法結合等效線性化進行結構非線性隨機振動分析。 -
Random vibration test of aircraft suspension equipment
飛機懸掛裝置隨機振動試驗技術 -
The transverse stiffness limitation index ? the permissible ultimate width / span ratio b / l of the continuous steel truss girder of railway bridge is analyzed in accordance with the analytic theories of random vibration of train ? bridge time - variation system and the required derailment coefficients and comfort of drivers and passengers in train running through the bridge. the limitation index in question may be referred to in the design of the continuous steel truss girders of railway bridges
基於列車-橋梁時變系統隨機振動分析理論，按照橋上列車脫軌安全系數和司機、旅客舒適度的要求，對鐵路連續鋼桁梁橋橫向剛度限值-橋梁容許極限寬跨比b / l進行了分析，對鐵路連續鋼桁梁橋的設計具有一定的參考作用。 -
Random process theory is a kind of effective mathematical tool to handle random vibration problem. through frequency spectra and time domain analysis for random course, the seemed complex vibration time - history can be transferred to trigonometric function series, thus makes it have certain periodic feature
隨機過程是處理隨機振動問題的一種有效的數學工具，通過對隨機過程進行時域分析和頻譜分析，可以將看似非常復雜和毫無規律的隨機振動表示為三角函數的級數形式，從而使其具備了一定的周期性特徵。 -
The pseudo excitation method ( pem ) has brocken its efficiency - bottleneck, and appears to be quite effective in coping with such multiple excitation random analyses. therefore introducing the random vibration approach into the bridge engineering as a tool of seismic designs not only meets the objective requirement and the modem technological development, a good methodology background is also available
虛擬激勵演算法突破了計算效率瓶頸，並且易於處理多點激勵問題。因此，將隨機振動法作為一種新的橋梁抗震設計方法引入我國橋梁工程界不僅符合客觀需求，體現了設計水平的現代發展趨勢；而且在方法論上也有了比較有利的條件。 -
This method is proved to be an accurate solution of random vibration equation, in which all cross - correlation items, either between earthquake inputs or between participant modes are involved naturally. compared to conventional method, the computational efficiency of the developed method is much higher
此法計算結果自動包含了振型間及各輸入分量間的相關項，理論上是隨機振動方程的精確解法，且與傳統方法相比可大大減少計算量，非常適合分析大型網殼這種自振頻率密集結構的隨機地震響應。 -
The solution of the original nonlinear problem is reasonably approximated by means of a series of random vibration analyses for the linearized structure using the pseudo excitation method
本文方法充分利用了虛擬激勵法求解復雜線性結構高效、精確的優點，以一系列線性問題的迭代分析，迅速地求得原非線性問題合理的近似解。 -
Along - wind loading is digitally simulated with the aid of random vibration theory and used as load input of dynamic analysis of wind - excited tower
本文利用隨機振動理論模擬了合肥電視塔的順風向脈動風荷載，並進行了合肥電視塔的風振反應分析。 -
Buffeting is the usual random vibration with the amplitude limited under natural wind
抖振是橋梁在自然風作用下的一種經常性的、隨機的限幅振動。 -
Low frequencies are related to the random property of soil rupture, whereas random vibration frequencies of the tractor - implement system are shown in the high frequency range
研究結果表明：低頻力與土壤振動裂縫等隨機因素有關，而高頻力則是由於拖拉機鼠道犁機組的振動引起的。 -
Optics and optical instruments. environmental test methods. temperature cycles combined with sinusoidal or random vibration
光學和光學儀器.環境試驗方法.與正弦波振動及隨機振動組合的溫度循環 -
Optics and optical instruments - environmental test methods - temperature cycles combined with sinusoidal or random vibration
光學和光學儀器.環境試驗方法.與正弦波振動或隨機振動組合的溫度循環 -
The critical testing technology and application of environmental random vibration to dynamic behavior of the ancient masonry pagoda
環境脈動試驗的關鍵技術及其在磚石古塔動力特性測試中的應用； 4 -
None but is the test spectrum abundant and controllable, it is possible to simulate the stresses environment needed for exposing weakness of the product. based on summarizing the present status of the vibration test and vibration environment simulation technology in the world, the topic of simulation of super - gaussian random vibration environment with controllable frequency spectrum and its applications in reliability enhancement testing is put forward. the main content and conclusions of the dissertation are as following : 1
本文在綜述國內外振動試驗技術和振動環境模擬技術的基礎上，引出「頻譜可控的超高斯隨機振動環境模擬技術及其在可靠性強化試驗中的應用」這一主題，並緊緊圍繞該主題開展了如下研究工作: 1 .全面分析了振動激勵的功率譜密度量級、幅值分佈、帶寬以及試件結構的固有頻率、阻尼比等因素對疲勞損傷累積的強化效應，提出振動強化試驗激勵信號應具備的重要特性:頻譜可控和超高斯，確立了本文的研究主題和方向。 -
Fuzzy random vibration
模糊隨機振動 -
White random vibration
白隨機振動 -
Abstract : this paper presents a solved computation method fo r non - stationary random response subjected to excitation based on the theory of vehicle dynamics, launch dynamics and random vibration the dynamic and response characteristics of the selfpropelled gun launching duping travelling are studi ed, which is of value in structural design and practical operation of the system
文摘:該文以車輛行駛動力學和火炮發射動力學理論為依據，利用隨機振動理論，提出了在隨機激勵下非平穩隨機響應的計算方法，並以某自行火炮為研究對象，用該方法探討了該系統在隨機路面上作行進間射擊時的動力特性和動態響應，對該類系統的結構設計和實際應用均有參考價值 -
Electromechanical components for electronic equipment - basic testing procedures and measuring methods - part 6 : dynamic stress tests - section 5 : test 6e : random vibration
電子設備用機電元件.基本試驗規程和測量方法.第6部分:動態應力試驗.第5節: 6e試驗:無規則振動
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