阻尼曲線 的英文怎麼說

中文拼音 [xiàn]
阻尼曲線 英文
damping curve
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : 名詞(尼姑) buddhist nun
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera

    本文對某卷弧尾翼彈氣動特性進行了系統研究,主要內容與結論為: 1 .將卷弧翼按照相同投影面積的平板翼進行工程估算,得到升力系數、力系數、俯仰力矩系數、俯仰導數、滾轉導數
  2. 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、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,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、特性及比;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。
  3. It will be seen that short engagements inadequate damping and high values of "a" result in oscillatory responses.

    可以看出,「短」攔截,不適當的系數和高的「a」值都會發生振蕩的響應
  4. The simulations get the variation curve of the torque acted on the helical gear spline during translating process, and get the important damping force acted on the middle part during engaging and disengaging process

    模擬還求得了作用在螺旋齒花鍵上的扭矩在動態過程中的變化;求得了作用在中間件上,起關鍵作用的力在嚙合、脫開中的動態變化
  5. 3. based on the above solutions, the influences of soil parameters in different visco - elastic model and viscosity of pile material on vibration characteristics and time domain response of pile are analyzed in detail

    3 、基於所得解,詳細分析了各種模型下有關土工參數對樁的振動特性及時域響應的影響規律,並研究了樁材料及土層性質差異等的影響。
  6. In technique rebuilding of system, discharge curve of ni - mh battery was measured, and power supplies in uav were improved. the security, adaptability and efficiency of miniature aerial rs systems could be improved obviously by microwave video transmission system and self - regulating blocking net in landing

    在對系統的技術改造中,測定了ni - mh電池組放電,對無人機機載電源做了改進,配合加裝的微波視頻傳輸系統和自行研製的降落網可以大大提高無人機航空遙感系統的安全性、適應性和作業能力。
  7. Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone

    以隨機有限元理論為基礎,將框剪結構的剛度、質量、等結構參數為隨機變量.通過求解隨機有限元的遞推方程,得到框剪結構各層的地震動力響應均值和標準差歷時.分析結構參數單獨變異,以及同時變異對框剪結構地震響應的影響.研究結果表明,對框剪結構而言,結構參數的變異對響應的均值變化影響都不大,主要是增大響應的標準差.剛度的變異性將引起框剪結構的響應發生大幅度變異,質量的變異性影響稍小,的變異性影響不顯著.結構各參數的同時變異,對框剪結構地震響應的影響,僅比剛度單獨變異的影響稍大
  8. On this basis, the further research of anti - seismic of buckling restrained braced frame is performed. derive additional damping and influence of buckling restrained brace to column axis strength. example proved, as to concentrically braced frame, buckling restrained braced frame has better anti - seismic performance

    在此基礎上,將此種支撐應用於框架中,對防屈支撐框架的抗震性能作了進一步的研究,推導了防屈支撐的附加比以及防屈支撐對柱附加軸力的影響,並且通過對一個算例進行非性時程分析驗證了相對于普通中心支撐框架,防屈支撐框架具有更好的抗震性能。
  9. The paper studied controlling rotor vibration with the super - elasticity of sma and sfd, set up the new equation of sys tern vibration according to the stress - strain curve of sma in super - elasticity state, used the nonlinear theory and the dynamic stability theory to study the vibration of rotor controlled by sma, discussed the stability condition of the system, obtained the relationship of system parameters when bifurcation was appeared, supposed a method that improves the stability of rotor system and restrains vibration amplitude though changing parameters, and finally validated the effect of restraining vibration of the improved system through emulation

    摘要研究利用形狀記憶合金的超彈性和擠壓油膜器控制轉子振動,利用形狀記憶合金在超彈性狀態下的應力應變,建立了新的系統振動方程,運用非性理論和運動穩定性理論研究轉子在形狀記憶合金控制下的振動狀態,討論了系統的穩定性條件,獲得系統發生分岔時系統參數之間的關系;並提出了通過改變參數來提高系統穩定性和抑制振幅的方法,最後通過模擬驗證了改進后的系統振動抑制效果。
  10. According to the results of test, the dissipation mechanism of friction - viscoelastic damper ( f - ved ) is studied and its theoretical hysteretic curve is obtained

    摩擦器的耗能機理進行了研究,並在理論上獲得了它的滯回
  11. Firstly, the dynamical performance of friction damper ( frd ) and viscoelactic damper ( ved ) is tested in this paper. the work, which gets the rules that the two dampers " hysteretic curve and performance - parameters change follows the changing of excitement, lays the foundation for designing new kind of edd

    論文首先進行了摩擦器和粘彈性器的動力性能試驗,獲得了兩種器的滯回和性能參數隨激勵性質變化的規律,為進一步開發新型的耗能器提供了基礎。
  12. Since the shape memory alloys re - centring damper is provided with hysteretic curve in the " double flag " type, to suppress the response of structure and get the capacity of fully re - centring, the new isolation system combining the above damper with laminated rubber bearing is proposed

    形狀記憶合金自復位器具有獨特的雙旗型恢復力,本文提出將這種器與疊層橡膠墊組成新型隔震裝置,以期在降低結構地震反應的同時還能夠獲得震后的復位功能。
  13. The study result is listed as follow : the transformation pseudo - elasticity property of shape memory alloys is simulated exactly with the above mentioned method of value calculation. the shape memory alloys re - centring damper presents typical " double flag " hysteretic curve, and the result accords with the theory analysis. the property of above new isolation device is excellent, the seismic response of the super - structure is significantly reduced, and the fully re - centring capacity after earthquake is obtained

    研究結果表明,文中所提的數值求解方法能夠反映形狀記憶合金相變偽彈性的基本特徵;形狀記憶合金自復位器在循環荷載下呈現出典型的雙旗型滯回,程序的模擬結果與理論分析相吻合;這種新型隔震裝置的性能優良,既可以大大減輕地震對上部結構的影響,同時也具有很好的震后自復位功能。
  14. Increasing the lateral link damping between cars will improve negotiation performance of high - speed train

    研究認為,增大各車之間的橫向連接系數將有利於提高列車的通過性能。
  15. ( 3 ) the negotiation performance of the vehicle and the train are investigated under rigid and elastic track conditions. the effect of track stiffness, track damping, lateral link stiffness and damping between cars on train ( vehicle ) dynamic curving behavior are described

    探討了軌道剛度和軌道對列車(車輛)通過性能的影響情況,並研究了列車中各車之間的橫向連接剛度及橫向連接系數對列車的動態通過性能的影響趨勢。
  16. The passive electromagnetic damper is applied to an experimental rotor and a very good vibration suppression result is achieved. because of its simplicity and reliability it may be used in industry

    在此基礎上,進一步進行了被動式電磁器用於單盤轉子系統振動控制的實驗研究,用實驗得到的數據和頻譜對實驗系統的有效和可靠性加以驗證。
  17. The influences of soil structure, confining pressure and strain amplitude on dynamic properties of recently deposited soils of nanjing and its surrounding areas are discussed. furthermore, based on test results and theoretical analysis, the averaging curves, recommended values and envelopes of dynamic shear modulus ratio ggmax and damping ratio versus dynamic strain for recently deposited soils of nanjing and its surrounding areas are presented. by use of vibration triaxial apparatus, nanjing silty clay and fine sand interbedded strata and nanjing fine sand were tested and their test results are discussed

    通過自振柱試驗,探討了土的結構性、有效圍壓和應變幅值大小對動荷載作用下南京及其鄰近地區新近沉積土的動剪切模量、比和應力?應變關系的影響;通過試驗和理論分析,給出了南京及其鄰近地區的粘土、淤泥質粉質粘土、粉質粘土、粉質粘土與粉砂互層土、粉土以及砂土等六類新近沉積土中典型土類的動剪切模量比和比隨剪應變幅值變化的平均、包絡和推薦值。
  18. By using the solution developed and the frequency - dependent stiffness coefficient and damp coefficient, the dynamic behavior, especially the one concerned with the variation of the dimensionless maximum response along the depth, for the pile with finite length or with infinite length was studied. it was shown that to simplify computation a pile of finite length can be taken as the one of infinite length if the ratio of pile length to its diameter ( i. e. lid ) is greater than 15

    利用所得解,採用與頻率相關的剛度系數和系數的近似表達式,對有限長樁和無限長樁的動力特性特別是對最大無量綱響應沿深度的變化進行了參數研究,表明在常見樁土參數下,當長徑比大於15時,可將有限長樁視為無限長樁以簡化計算。
  19. Secondly, the specific configuration and functioning principle of shape memory alloys re - centring damper is introduced. the mechanical property of damper under static reversed loading is analyzed by program, and the hysteretic curve is obtained

    其次,簡述了形狀記憶合金自復位器的構造形式和工作原理,編制計算機程序並對器在靜力循環荷載下的力學性能進行了分析,得出其滯回
  20. According to regress, the paper got equivalent shearing stiffness and equivalent damping gene ' s calculating formula of the hdr ' s equivalent linear model. at last, the paper estimates the effect of integrated isolation bearing with a 4 span continuous beam bridge by nonlinear dynamic analysis program

    根據能量相等的原則,本論文提出了高橡膠剪切滯回的雙性模型和模型中各參數的計算公式;回歸出了用剪應變表示的等價性化模型的等價剪切剛度和等價比實用計算公式。
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