結構自振頻率 的英文怎麼說

中文拼音 [jiēgòuzìzhènbīnlǜ]
結構自振頻率 英文
structural frequency
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 構 : Ⅰ動詞1 （構造; 組合） construct; form; compose 2 （結成） fabricate; make up 3 （建造; 架屋） bui...
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 結構 : 1 （各組成部分的搭配形式） structure; composition; construction; formation; constitution; fabric;...
  • 頻率 : frequency; rate
  1. Abstract : a conclusion has been proved indelail that only if the na tural frequency k of a symmetric structure is nota duplicate root, the vibra tion mode of the strusture must be symmetrical orantisymmetrical. this conclusio n is advantageous to simplify the structural dynamicanalysis and pratically usef ul

    文摘:給出了有關對稱結構體系的動力特性的一個結論：對稱的結構振動體系，對應于任一非重根的自振頻率，其主振型必定是對稱的或反對稱的.並給出了詳細的證明.應用這個結論，有利於對稱結構動力分析的簡化，具有實用價值
  2. Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod. it increases with the increment of accele ration and mass of superstructure. as the site characteristic frequency approaches the self - oscillation frequency of the pile, sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase, the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile

    將其解析解與具體的的抗震設防烈度和場地特徵周期結合起來，計算分析了成層地基中單樁的橫向地震響應，得到了以下結論： 1 ）上部結構慣性力對樁的橫向地震響應的影響不可忽略； 2 ）成層地基中的單樁的橫向地震響應主要受地震基本加速度、場地特徵周期、上部結構質量的影響，隨地震基本加速度、上部結構質量的增大而增大；場地特徵頻率越接近樁基自振頻率，樁基地震響應越大，等於自振頻率時，由於發生共振現象，樁基響應幅值最大； 3 ）樁土剛度比越大，樁土之間的相對位移的幅值越大； 4 ）樁頂固接的連接方式，可以有效地降低地震時單樁的橫向地震響應。
  3. In order to ascertain the character of cable - replaced bridge, in addition, the thesis calculates mode shapes and natural frequencies of the bridge using algor software and estimates the result of dynamic load test and calculation in details

    為了評價換索后橋梁的工作特性，最後利用algor軟體對換索后的結構進行了振型和自振頻率分析，並對動載試驗檢測和計算成果作了詳盡的分析和評價。
  4. In the former, two computing modes of fem are built, aimed at the coupling of variable - profile pylon, curved - axis arch and flexible cable. the software algor feas is used to get the results of dynamic numerical analysis, such as natural vibration frequency, vibration mode, dynamic displacement, dynamic stress, which are compared with the results of shaking table test research to draw to important conclusions. these conclusions provide not only potent basis for the design and construction of nanjing century tower, but also reference for other pylon - cable - arch structures similar to the project

    在動態數值分析中，針對世紀塔變截面的塔身，曲線軸線的拱以及柔性拉索相互耦合時清況，建立兩種有限元計算模式，利用有限元軟體algorfeas得到動力數值分析的結果，如：自振頻率、振型、動位移、動應力等等，再和振動臺試驗研究成果作比較，得到一些重要的結論，從而為南京世紀塔工程的設計和施工提供強有力的依據，而且為類以於世紀塔工程的其它塔-索-拱結構的設計也提供一定的參考。
  5. The vibration of upper structure of bridge which caused by the dynamic action of vehicle pass the railway bridge may make the structural component fatigue and decrease the intensity and stability. the more vibration of bridge will influence the safety and stability of vehicles ; when the dynamic changing frequency of vehicle equal or approach to the free vibrational frequency of bridge, wh ich will make the resonance may intensify the response of bridge and vehicles

    列車動力作用引起橋樑上部結構的振動可能使結構構件產生疲勞，降低其強度和穩定性；橋梁振動過大可能會對橋上車輛的運行安全和穩定性產生影響；當列車的動力變化頻率與橋跨結構自振頻率相等或接近時，引起的共振可能會使車橋動力響應加劇。
  6. In the modal analysis, the similarity laws has been introduced to reduce the error during the assessment of the prototype building ' s natural frequency under the insufficient balance weight testing. by the author ' s theory, the prototype natural frequency can be the same even the balance weight of model is changeable

    在模態分析方面，本文利用相似性原理，解決了模態試驗在配重不足時，求解原型結構自振頻率誤差過大的問題，並且得出了在不同配重條件下，試驗模型與原型結構的頻率可以達到一致的相似準數。
  7. The cable tension plays an important role in the construction control and long - term monitoring of cable - supported structures. the engineering implementation of a vibration - based cable tension evaluation is mostly carried out based on the taut string theory where the cable tension is estimated from measured natural frequencies by use of a simple explicit formula

    振動法測索力廣泛應用於索結構的施工控制和健康監測，其原理是基於弦振動理論：索拉力與自振頻率之間存在簡單的關系，因此可以由實測的自振頻率計算得到索力。
  8. 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。
  9. One self - anchored suspension bridge is the subject investigated, the finite element program " midas " is adopted to establish the spatial computation model of the suspension bridge, and the subspace iteration method is used to calculate the natural vibration frequencies and modes of the bridge, the bridge ' s dynamic property and rigidity feature are discussed with the computed results

    摘要以某自錨式懸索橋主橋為研究對象，採用midas有限元程序，建立了該橋的空間力學計算模型，利用子空間迭代法計算了該橋梁結構的自振頻率和振型，結合計算結果對橋梁的動力特性和剛度特點進行了討論。
  10. These roof structures are generally in high turbulent regions, then wind loads become important to these structures. however, wind - induced response for most of roof structures has not been considered in the present load code of building structures because of the complexity of the structures and wind loads. so the investigation for characteristics of wind load of large span roofing becomes a critical subject

    這類結構的屋蓋或看臺挑蓬通常具有質量輕、柔性大、阻尼小、自振頻率低等特點，且往往比較低矮，處于大氣邊界層中風速變化大、湍流度高的近地區域，對風荷載十分敏感，風荷載往往是此類結構設計的主要控制荷載。
  11. As a design method, frequency tuning approach ( fta ) was suggested to be used first to avoid critical frequency ranges

    建議人行橋梁設計時應首先採用頻率調整法，使結構自振頻率盡量不落在敏感頻率范圍內。
  12. The substructural technique is employed to parameters identification of frame, natural frequencies and generalized mode shapes of frame are computed

    本文把動態子結構方法引入框架結構參數識別中，算出結構的自振頻率和廣義振型。
  13. The fist step is to judge the damaged sub - area of the structure, which is divided into several sub - areas, using probability neural networks with neural frequencies shift ratio input, and the next step is to diagnose the exact damage location and extent using rbf neural network with the second element end strain mode of the damaged sub - area input

    即按照先查找結構損傷區域，后進行損傷位置與程度診斷的思想，首先將結構分為若干個子區域，根據結構損傷前後的自振頻率變化比，應用概率神經網路，進行結構損傷子區域的判定。然後，根據損傷子區域內的應變模態變化，應用徑向基神經網路診斷結構的損傷位置與程度。
  14. This paper analyses the impacts of different restrains, different loads and different pre - stress value of cable on the natural vibration frequency, damping ratio and mode of structure

    分析不同配重情況、預應力值大小、支座約束對此類結構自振頻率、阻尼比、振型的影響規律。
  15. And according to real conditions has finished relative experiments. consequently, in theory the author utilizes subspace and lanczos methods to analyses, experimental data. through the comparing, find in " limiting elements calculation the different boundary can affect dynamic properties, for example, the important place of lateral vibration, vertical vibration, shrinking vibration and vertical distortion vibration in automatic frequency

    在現有條件下完成了相應的部分實驗，並用subspace （子空間）迭代法和lanczos （蘭索斯）法在理論上對實驗數據進行分析，同時與試驗成果相互對照，找出不同的邊界條件在有限元計算中對結構動力特性的影響，例如，側向振動、上下振動、收縮振動及豎向扭曲振動在結構的自振頻率中的主次關系。
  16. By the means of lanczos in dynamics analysis of large space grid structure, the thesis workouts inherent frequency and models. this method can solve eigenvalue more fast than that of means called subspace iteration, and can reduce the possibility of losing eigenvalue

    通過研究lanczos方法在大型結構動力分析中的應用途徑，在程序中採用了該方法來求解空間網格結構的自振頻率和振型，使sgscad在計算結構自振頻率時速度更快，並減少了漏頻現象。
  17. The dynamic behavior of sunflower - patterned cable dome and sunflower - patterned cantilever roof are analyzed. the effects of prestress on the frequency and mode is considered, the results show that the frequency is increased with increasing the prestress, but prestress affects more on lower order frequency than higher

    分析了葵花型索穹頂結構和葵花型張拉挑蓬結構的動力特性；考慮了預應力對這兩種結構自振頻率和振型的影響，結果表明，預應力增加，這兩種結構的自振頻率也增加，但預應力對低階頻率比高階頻率影響大。
  18. The mechanic character, destroying pattern, the ductile and dissipation energy capacity of this composite structure under the earthquake have been clarified. the stiffness degradation, natural frequency, damping ratio of this structural system with the development of intensity of earthquake have also been investigated. with consideration of the top displacement, drift of story and micro - strain of longitude steel bars, the equivalent shell wall method has been presented in order to simplify the design of such type structure

    通過試驗，掌握了該結構體系在水平地震荷載作用下的受力特點、變形與耗能性能、結構的破壞形態等力學指標：得到了結構在不同地震烈度條件下的剛度變化、自振頻率、阻尼比等動力特性；綜合結構的頂點位移、層間轉角以及鋼筋的微應變，提出了適合於該結構體系簡化設計的「等效剪力墻法」 。
  19. We compose a neural network in which the input signals are the frame substructure natural frequencies and mode shapes, and output signals are the submatrix scaling factor. the levenberg - marquardt algorithms is applied to modify the weight matrices of neural network

    框架子結構在動載作用下的自振頻率和模態作為網路的輸入，子矩陣參與系數作為網路的輸出，用levenberg一marquardi演算法訓練網路。
  20. In calculation of dynamical character of supporting structure in the powerhouse of hydropower station, the simulation range is larger and the value of the natural vibration frequency is less

    摘要對於水電站機組支承結構而言，模擬?圍愈大，計算出的自振頻率愈低。
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