振動的基模 的英文怎麼說

中文拼音 [zhèndòngdejīmó]
振動的基模 英文
fundamental mode of frequency
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 的 : 4次方是 The fourth power of 2 is direction
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  1. 3. as to vehicle - bridge system coupling vibration, this difficulty in engineering industry, it was abstractly summarized in this thesis, and introduce a method to establish and resolve equations about such coupling vibration, bring forward a flow chart to write correlative software ; with the help of ansys, make out some work about preparatory simulation, so as to research basic point of chicle - bridge system coupling vibration

    3 、對車橋耦合振動這一業內的難點進行了理論上的分析，引入了一種建立和求解車橋耦合振動系統方程的較為典型的方法，提出了一份自行編製程序的流程簡圖；借用ansys軟體對該橋做了車橋耦合振動的初步模擬計算，探索車橋共振的基本特點。
  2. A new method for measuring the vibration of shadow mask without touch by detecting the light density with reflection type optical fiber sensor is presented. the measurement system based on the new method is designed to make the vibration measurement easier working, faster calculating, and get more precise results. it is an important measurement and analysis tool to improve the performance of shadow mask and display quality of cpt

    本文提出了基於單光纖光強度反射法的非接觸式微振動測量系統的原理，並設計製造了該測試系統，探索出了簡單方便可靠的測量方法，能夠準確客觀地反映蔭罩振動的各項參數（各振動模的振動頻率、振幅、衰減時間） ，實現了測試裝置的簡便化和測試過程的自動化，為cpt張緊式蔭罩系統的性能改進與顯示質量的提高提供了有效的測試分析手段。
  3. Based on the traditional model of vibrat ory machines ， an electrome chanical - coupled model of motor - vibrator y machine system is established, and a reasonable quantitative expla ining of engineering phenomena in transi ent processes is given by digital simula tion according to it. the, mechanism of self - synchronous vibration, and vibratory synchronization transmissi on is proposed in this paper

    本文對此進行了專門的研究，在傳統的振動機械模型基礎上建立了電機-振動機械繫統的機電耦合模型，利用該模型進行數值模擬對過渡過程中的一系列實際現象做出了合理的定量解釋，揭示了自同步振動和振動同步傳動的機電耦合機理。
  4. According to the characters of the vibration of internal combustion engine and on bases of the theory of active vibrantion control which is carefully analyzed, the corresponding mathematical model suitable for the vibration of internal combustion engine is developed and the fuzzy control techniques are adopted. a new active vibration control system is developed w hich conclude mcu, the key part, and the equipment used to survey the vibrative acceleration of internal combustion engine

    本文根據內燃機振動的具體特點，在仔細分析了振動主動控制原理的基礎上，建立了適合內燃機整機振動的數學模型和採用了模糊控制方法，提出了一種新的內燃機整機振動主動控制減振系統，該系統以微控制器為核心，配以測加速度和控制機電轉換執行機構組成。
  5. Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled

    （ 2 ）利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究，通過分析正弦荷載作用下的試驗資料，驗證了粉土的孔隙水壓力增長模式的合理性；從微分方程推導了基於土體振動臺模型試驗的相似律，並從模型實體、孔壓時程曲線和相似律等方面做出了分析，得出了如下結論：在小型振動臺試驗中，模型箱中的粉土都發生了液化，液化的時刻和輸入加速度幅值有關，而對頻率的變化不太敏感；粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化；孔壓的增長曲線形狀與施加的荷載有關：當施加荷載為由小到大的形式時，曲線形狀為上凹的曲線；當施加荷載為等幅的正弦荷載或荷載幅值由大到小時，曲線形狀為上凸的曲線，且逐漸趨于穩定。
  6. Based on the analysis of the structure and vibration of hcm - i submicro cnc ultra - precision turning machine, the mechanical model of active vibration isolation system is set up in the paper

    摘要本文以hcm -型亞微米超精密車床為研究背景，在分析了機床結構與振動的基礎上，建立了機床主動隔振系統的力學模型。
  7. Based on the perturbation riccati transfer matrix method, the calculating program are developed. the program can be used to the perturbation analysis and the sensitivity analysis of the real and complex, the single and repeated eigenvalues and eigenvectors for lateral vibration of rod and beam structures, especially suitable to the perturbation analysis and the sensitivity analysis of eigenvalues and eigenvectors for rotordynamic systems ; 2. the perturbation riccati transfer matrix method was applied to identify the parameters of the rotor for a boiler supply pump, and the accurate dynamic model of the rotor was archived

    該程序可以對桿、梁結構橫向彎曲振動的實數、復數的孤立和重頻特徵值問題進行攝動分析和靈敏度分析，特別是適合於轉子動力學系統特徵值和特徵向量問題的攝動分析和靈敏度分析； 2 、用攝動riccati傳遞矩陣方法解決了某電站鍋爐給水泵轉子的參數識別及動力模型修改的問題，並給出了該種型號的給水泵轉子的更準確的力學模型，為進一步的轉子動力學分析與設計奠定了可靠基礎； 3 、給出了攝動理論在相關領域如隨機特徵值分析、隨機振動響應分析、可靠性分析、靈敏度分析、優化設計以及參數識別中的應用公式。
  8. Based on interpretation and analysis of home and foreign relevant research, for the purpose of reducing the vibration of adjacent buildings induced by subway, the characteristics of buildings vibration induced by subway are studied by in situ experimental method and numerical simulation method. based on above analysis, a three - dimension isolation device is developed to reduce the buildings vibration, and its practicability and feasibility are tested and verified through numerical simulation method

    本文在對國內外相關研究內容進行分析的基礎上，以減輕地鐵運行誘發沿線建築物振動為目的，用現場實測和數值模擬的方法研究了地鐵運行誘發鄰近建築物的振動特性和規律，並在此基礎上提出了減輕建築物振動的三維隔振裝置，同時對該裝置的適用性和可行性進行了數值模擬驗證。
  9. Bringing into play the communication market resources in hangzhou bay, the park devotes itself to the formation of a “ mobile valley ”, which means a unique zhejiang - flavored economic pattern : forming a complete telecommunication industry chain from software and operation development of key parts, such as ic chip, rf modules, base band, display, high capacity battery, to related components like cell phone housing, keypad, antenna, vibration motor, mould, pcb ( circuit board ), photoelectricity device, electronic device, connectors and system and software development, and operation service development

    園區依託杭州灣通信市場資源，致力打造「移動谷」 ，創造中國浙江經濟特有的專業版塊模式：從集成電路晶元、 rf組件、基帶、顯示器、高能電池等核心器件到接手機外殼和按鍵、天線、振動馬達、模具、 pcb （電路板） 、光電器件、電子器件、連接件等相關組件及系統和軟體開發、運營服務開發，形成完整的通信產業鏈。
  10. The interaction between current induced vibration and scour ofpipeline placed on a sandy bottom was investigated experimentally in a small scale model

    針對引發振動的流與置於砂基上的管道淘蝕的相互作用問題，應用小尺度模型進行了試驗研究。
  11. This paper describes the vibration equation of this structure, and derives the horizontal vibration displacement and acceleration response spectrum and the mean square response on the base of the complex modal analytical theory

    建立該結構體系在脈動風作用下的振動方程，基於隨機振動的復模態理論，推導位移和加速度響應譜及均方響應的表達式。
  12. In the first part : in combination of the modern theory with the theory of mechanical vibration, the basic principles and approaches for active vibration control are systematically and briefly discussed. the corresponding mathematical model is developed for the systems with single degree of freedom ; the regulation rules and fundamental solutions of the transfer functions of the system are analyzed

    第一部分是將現代控制理論和機械振動理論結合起來，系統地闡述了振動主動控制的基本原理和分析方法，推導了適合內燃機整機振動的單變量系統的典型反饋控制形式及其數學模型，分析了系統的傳遞函數。
  13. A flow induced vibration model based on grid - free surface vorticity method

    一種基於表面渦方法的流體誘導管束振動計算模型
  14. In this paper, the propagation, the regulations of vibration attenuation are studied by both in situ experimental and simulation method, based on the observed data of the first and second line in a subway

    本文以某地鐵一號線、二號線振動測試數據為基礎，從實測和數值模擬兩個方面對振動的傳播規律進行了研究。
  15. A mathematical model is developed to comprehensively describe and analysis the vibration of over - head transmission lines according to pertinent datum. based on the model ， an optimum solution about the conductor - damper system is put forward to by means of the analysis of possible anti - vibration designs. a method of balance - energy is used to acquire the frequency - respondence features of the conductor - damper system under the function of breeze ; a cad software is presented and developed in terms of above approaches. the model applied in the thesis is comprehensible and considerate, and the results from the model are close to the data from experimental site. beside these, favourable interactive operational capability makes it possess more practical and economic value

    通過分析有關資料，建立了普通檔距導線微風振動系統的防振數學模型，並在該數學模型的基礎上，對防振結果進行了優化分析，得到了防振系統的解，用能量平衡原理，得到系統在微風作用下的頻響特性；採用這種方法設計了普通檔距防振的計算機輔助分析軟體。所採用的分析方法對微風振動的影響因素考慮全面，所求結果與現場實驗觀測中的數據比較接近，且人機交互操作性能良好，有一定的工程實用價值
  16. Sound synthesis techniques for physical model are research subjetcs based on acoustics and elastic dynamics and mathematics and signal process. they start from a continuous model for the vibrating body, given by partial differential equation dependent on elastic dynamics, and take its initial and boundary conditions, as well as excitation functions into account

    基於物理模型的聲音合成技術是建立在聲學、力學、數學和信號處理等理論基礎之上的一門科學，它主要根據力學原理，通過振動偏微分方程、振動體的邊界條件、振動的初始條件和激勵條件來描述物體的振動物理特性。
  17. We apply fuzzy control theory to active control over engine body vibration, design fuzzy control system which combines intelligent control with feedback control. this control strategy mends the flaw of complexity, nonlinear and uncertainty when we use traditional control method. by measuring rotate speed and vibration speed of i. c

    在主動控制的基礎上，採用了模糊控制的演算法，設計了內燃機整機振動模糊控制器，改進了傳統控制方法在處理振動復雜性、非線性和不確定性等方面的缺陷，通過測量內燃機轉速和內燃機整機振動速度信號，動態地改變動力減振器的剛度，使減振器的固有頻率跟隨內燃機整機振動激勵頻率的變化，達到降低內燃機振動的目的。
  18. 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。
  19. The main research is as follows : analyze and research the boundary constraint and the structure characteristic and segment the frame making use of the shell element, the pipe element etc. on the base of it the practical finite element model has been established ; analyze the mode of the frame by dint of the finite element model. and get the inherent frequency and the vibration mode of the frame. tentatively estimate the dynamic characteristic of the frame and analyze the inherent frequency that may be lead to the resonance

    論文的主要研究工作如下：分析研究車架的邊界條件和結構特性，並用殼、管等單元對該車架進行離散，建立一種切實有效的車架有限元模型；對該車架的有限元模型進行模態分析，求得其的固有頻率和振型，並對車架的動態特性做出初步評估，分析可能引起車架振動的固有頻率；在模態分析基礎上，研究發動機輸出的簡諧力引起的車架位移響應（即諧響應分析） ，以考察摩托車車架各部位的振動情況並與模態分析對比，分析是否與該車架的固有頻率相耦合而導致共振；在深入研究車架的模態分析及諧響應分析、清晰地認識了摩托車車架動態特性的基礎上，分析並提出了採用橡膠減震器對車架進行隔振的減震方法。
  20. The main job proceeded : collecting the data through investigation, summery the chracteristic of the quiver of the imported 300mw set to solve the quiver problem of the imported 300mw set, basing on the # 1, # 2 sets of the jingyuan ins corp and choosing the effiction of the aggravated plane, the changed stiffness of the # 4 bearing and # 7 bearing obtained the test result which can be used to be the conductor to solve the too bad quiver problem of # 5, # 6 axletree tiles in the # 1, # 2 sets of the jingyuan ins corp. outcome of the paper : analyse and sum up the main reason of the imported 300mw set ' s quiver through see much literature

    針對靖遠第二發電有限責任公司# 1 、 # 2機組振動的具體情況，選擇各加重平面對軸系振動的影響、 # 4軸承變剛度、 # 7軸承變剛度變標高等項目，在300mw軸系模擬試驗臺上進行了模擬試驗，獲取了大量的試驗數據，得出了具有實際指導意義的試驗結論；針對靖遠第二發電有限責任公司# 1 、 # 2機組發電機# 5 、 # 6軸承瓦振過大的問題，通過剛度調整試驗的方法，較好的解決了問題。通過本文研究取得了如下成果：在閱讀了大量文獻資料的基礎上，對國內引進型300mw火電機組的振動特徵、振動的主要原因進行了分析和總結。
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