自振動系數 的英文怎麼說

中文拼音 [zìzhèndòngxìshǔ]
自振動系數 英文
coefficient of self oscillation
  • 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
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. So this base isolation technique has profound prospects. unfortunately there exist definite difficulties in the calculation because of the nonlinear of the base friction force. now, both the equivalent damping method and the numerical calculatin of the vibration response of the base - isolated buildings are frequently used in the calculation of the seismic response of the base - isolated building. however both of them have certain drawbacks. in this paper, the response of the building with base - isolation system is derived by the method of fourier expansion for the friction force and the earthquake response. at the same time, the sliding vibration character of inertia of a single mass structure and the sliding vibration response of a muti - mass structure are discussed. the stable condition of the sliding base isolation system of a structure is given. in the end, two circes of base fixation and base sliding are analyzed by adopting ansys

    本文利用對摩擦力和地震響應進行付氏級數展開的方法導出了基底具有摩擦隔震系統的地震反應。同時，文中從研究單質點結構的滑動振動慣性力入手，進而對多質點結構體系滑動振動反應進行探討，分別給出了結構滑動隔震的自身穩定條件。最後，本文利用ansys對基礎固定和基礎滑移隔震兩種工況進行了動力模擬模擬分析，進一步證實了基礎滑移隔規律。
  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 extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  4. 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。
  5. On the part of the design of nine - component thrust vector stand, an automatic hydraulic pressure original position calibration system, a scheme of original position calibration, and the great rigidity universal flexible combinatorial underprop are designed. by using the scheme of “ universal flexible combinatorial underprop plus software digital filter ”, the inherent frequency of test stand is improved, and the problem of test stand libration is solved. then, the resolving method of the disturbance between underprops of the moveable frame is proposed, and the disturbance revise equation is deduced

    在推力矢量試車臺設計方面，設計了自動液壓原位校準系統、原位校準方案以及大剛度萬向柔性組合支撐;採用「萬向柔性組合支撐+軟體數字濾波」的方案，提高了試車臺動架的固有頻率，解決了試車臺動架的振動問題;提出了動架約束互擾問題的解決方法，推導了互擾修正方程;研究了九分力推力矢量測量誤差分析方法，並計算了推力矢量測量精度。
  6. Then, the author provided ways to control flexible support systems " displacement on the base of study the capability of flexible support systems. at the same time, the author analyzed the self - vibrating capability of flexible support systems and study the influence of parameters " changement

    同時，對柔性支承體系的動力性能進行了開拓性的研究，分析了空間柔性支承體系的自振特性，以及矢高、桿件截面、質量等不同參數對其動力特性的影響。
  7. And the result shows that the self - excited loads and the flutter derivatives satisfying the linear relationship as to the streamline section - like thin plate

    結果表明對薄平板這一類近乎流線體的斷面，自激力與振動參數之間能較好地滿足線性關系。
  8. Based on the geophone vibration formula, this paper presents the affective factors to the seismic data from high resolution geophone arrays and its main property specifications, such as natural frequency, damping coefficient, sensitivity, harmonic distortion, and alias

    為此，從檢波器的振動方程出發，對高解析度地震檢波器性能指標（如自頻率、阻尼系數、靈敏度、諧波失真、假頻等）以及檢波器組合的連接方式對地震資料品質的影響進行了分析。
  9. The optical feedback self - mixing model is studied when the external cavity of a semiconductor laser suffers a harmonic vibration

    摘要在外腔簡諧振動條件下，研究半導體激光器的光反饋自混合干涉系統模型中的測量參數。
  10. We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s

    根據能量動量守恆關系和clbo的色散方程，詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬，並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。
  11. Abstract : it introduces the principle of graphite electrode abrading tool and develops the software and hardware of nc machine. this can detect the position of platform feed with great inertial - mass through photoelectrical encoder, the vibration magnitude of translation worktable with eddy transducer. based on these the machine parameters can be automatically regulate, and the grinding process is smooth

    文摘:介紹了石墨電極研磨成形機的原理和數控軟、硬體系統的研製開發；用光電編碼器實現了大質量進給滑臺的位置檢測；並用電渦流傳感器檢測平動臺振動量，進而實現了機器參數的自動調整，從而保證了石墨電極研磨成形機研磨加工的順利進行。
  12. A study on the proposed scanlan linearity has discovered that if the self - excited loads and movement of the model and velocity constitute a linear relationship, and the model vibration accounts for a sine function of the frequency, the rate of the high - order harmonic waves should be quite small

    考查了scanlan的線性假定：如果自激力與模型運動的位移、速度成線性關系，模型振動是某一頻率的正弦函數，那麼相應的自激力也應是這一頻率的正弦函數，高次諧波的分量應極小。
  13. In the first session the fans vibration on - line monitoring system is realized with vc language, also compile auto power spectrum density function, cross power spectrum density function, autocorrelation function and cross correlation function etc spectral analysis function to carry through simple offline fault diagnosis

    首先用穩定性強、擴展性好的vc + +語言開發了通風機振動在線監測系統，並編寫了自功率譜密度函數、互功率譜密度函數、自相關函數和互相關函數等頻譜分析函數來進行簡單的離線故障診斷。
  14. Effect of rolling parameters on the self - excited vibration of rolling mill drive trains

    軋制參數對軋機主傳動系統自激振動的影響
  15. At the same tune, the paper analyses and discusses the control projects of the above parts. as for the hardware of the control system, on principle of reliability and considering the badly working condition of the vibratory roller, the paper chooses the special controller sp ecializing in the realm of construction machinery ' s control system in order to insure the reliability of the control system and simplify it. about the control quality of the system, the paper establishes the mathematical modes of the frequency modulation system and the amplitude modulation system, analyses the irrationality of the amplitude modulation project, puts forward to apply proportional - integral - differential controller ( pid controller ) to the traveling system and frequency modulation system

    作為控制系統的方案設計的基礎，本文首先對影響壓實效果的振動參數進行了分析；然後針對智能振動壓路機的功能要求，將控制系統分為壓實參數的自動和手動控制、行走控制、轉向和蟹行控制以及智能灑水控制等幾個部分，對各部分的控制方案進行了分析對比和論證；在控制系統硬體設計方面，以可靠性為原則，考慮到振動壓路機的惡劣工況，選擇了專用於工程機械控制領域的專用控制器，使系統的硬體設計得以可靠性保障和簡化；針對控制系統控製品質問題，建立了調頻和調幅系統的控制模型，對調幅系統的控制不合理性進行了分析，提出採用pid控制器對行走和調頻系統進行校正；在軟體設計方面，對各個控制部分進行了軟體編程流程圖設計。
  16. Because the self - oscillation, the dynamic accuracy of the servo system is not only correlative with servo system parameters but also influenced by the input signal amplitude, frequency and the system self - oscillation state

    由於自振蕩狀態的存在，伺服系統的動態精度不僅與伺服系統的參數有關，還受到輸入信號幅值、頻率以及自振蕩頻率的影響。
  17. For the amplitude - frequency response at the self - oscillation frequency is one, a method to calculate the dynamic accuracy and the index of the servo system is provided, by comparing them, the scheme to design the verifying unit is presented

    利用伺服系統在自振蕩頻率點的幅頻特性為1這一特點，將輸入信號頻率、幅值、系統的自振蕩狀態和系統的參數聯系起來，構建了伺服系統動態精度的計算公式和指標估算經驗公式，並根據兩者的關系提出動態精度校正方案。
  18. Just under this urgent consideration, based on the fact that self - oscillation can produce pulsation of flow, to influence the flow boundary layer, thus to increase convective heat transfer coefficient, it is necessary to devote to the mechanism of self - oscillation and apply it to a heat exchanger

    正是在這種迫切要求下，基於自激振蕩能產生脈沖流動而影響流動邊界層從而提高對流換熱系數來強化換熱的考慮，需要開展對自激振蕩的機理及其應用的研究。
  19. The experimental system on seismic simulator was set up and whose control roftware were developed. analyzing automatically data method was advanced and its roftware was designed. the methodology of the collecting responses of structure was obtained was proposed

    建立了振動臺試驗系統，開發了試驗控制軟體，提出了「自動數據分解法」及其軟體實現，確定了試驗結構模型反應的獲取方法。
  20. Digital driving methods are also discussed in the article, which are the method based on the nonlinear model, the method based on a mdac, the method based on a dac and a mdac and the method based on synthesized wave. according to the problems of the method based on synthesized wave, the author proposes a digital driving algorithm, which can make the flow tubes start to vibrate and track automatically the change of the natural frequency

    本文還對各種數字驅動方法進行了探討，這些方法總結起來主要有基於非線性模型的方法、基於mdac的方法、基於dac和mdac的方法，以及基於波形合成的方法，其中針對波形合成方法中存在的問題，本文還提出了實現使振動系統起振以及自動跟蹤固有頻率變化的數字驅動演算法。
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