equivalent damping 中文意思是什麼

equivalent damping 解釋
等價阻尼
  • equivalent : adj 1 相當的，相同的，同等的。2 【化學】等價的，當量的；【數學】等價的；等量的；等勢的；【物理學...
  • damping : n. 【物理學】阻尼，減幅，衰減。 damping resistance 阻尼電阻。
  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. This paper put forward a method, which is used to identify the blow - off point of shock absorber valve system, based on the damping - displacement characteristic test of shock absorber, conversation of energy and equivalent damping coefficient

    摘要以減振器示功特性試驗為基礎，以能量守恆為依據，提出一種以等效阻尼系數為對象的識別減振器閥系開閥點的方法。
  3. Those sensitive parameters making system have negative damping and occur self - excited shimmy are horizontal pulling lever rigidity, tire sideslip rigidity, steering gear rigidity and damping, kingpin equivalent damping, kingpin caster angle, tire drag. and wheel center distance, tire side rigidity, vehicle wheel unbalanced mass, tire vertical rigidity, and distance from kingpin center to the vertical central line plane of tire have great influence on shimmy, but they do n ' t make the system have negative damping. and horizontal pulling lever damping, suspension damping and rigidity have very small influence on shimmy

    橫拉桿剛度、輪胎的側偏剛度、轉向機剛度、轉向機阻尼、繞主銷當量阻尼、主銷后傾角、輪胎拖距是影響擺振的敏感性參數，適當調節某一參數可引起系統的負阻尼，使系統產生自激擺振；輪距、輪胎側向剛度、車輪上的不平衡質量、輪胎垂向剛度及主銷延長線與地面交點至車輪平面的距離對擺振的影響也較大，但不會使系統出現負阻尼；而橫拉桿阻尼、懸架阻尼與懸架剛度對擺振的影響很小。
  4. To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering

    為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議
  5. Through studying the working mechanism of the composing, the paper referred the bearing ' s analyzing model and designing flow. through shearing test of high damping rubber, the paper analyzes the influence of shearing shape, shearing strain range and inspiriting frequence on the characteristic parameters ( dynamic shear elastic module, dissipation engineering module, wasted gene ). according to the rule of equivalent energy, the paper gets the hysteretic curve of hdr ' s equivalent bilinear model and parameters ' calculating formula

    本論文通過對這種分離式減震支座各組成部分工作機理的研究，提出了該分離式減震支座整體的計算分析方法和設計流程；通過高阻尼橡膠剪切試驗，分析了高阻尼橡膠剪切面形狀、剪應變幅值、激勵頻率和試件高度對特徵參數（動態剪切彈性模量、耗能模量、損耗因子）的影響。
  6. The mode superposition method, based on equivalent linearization and forcing decoupling method of non - classical damping matrix of energy dissipation systems, is the just one. at the same time, iterative process will increase computing workload and forcing decoupling method increase error

    基於等效線性化的強行解耦振型分解法在一定程度上符合此要求，但此方法存在著迭代計算工作量大、強行解耦增大計算誤差的不足。
  7. This dissertation also presents the equivalent stiffness and damping models and the nonlinear hysteresis and saturation model of a kind of the mr damper developed by the experimental testing and modeling in order to describe accurately characteristics of the mr damper

    建立了磁流變阻尼器的等效剛度和等效粘性阻尼系數與施加電壓、激振頻率和振幅的關系以及能精確表示磁流變阻尼器的力學特性的非線性滯回模型。
  8. The analytical mode is based on the theory of sound propagation in layered media. the concept of equivalent parameters is established. the absorption of sound energy by damping layer ' s is represented by use of complex sound impedance

    解析模型以分層介質中的波動理論為基礎，建立了等效參數的概念，並運用聲阻抗的復數表示法把阻尼層對介質層聲能吸收的影響都考慮進去，通過比較敷設消聲覆蓋層前後多層傳遞損失的差異來獲得消聲層的效率。
  9. Comparing the fitted expression with the established theory expression of the angular velocity, the equivalent viscous damping coefficient is gained. the closed form algorithm of the state space method is employed to solve the system dynamic equation with time - varying coefficients. the dynamic problem of a linkage mechanism with four joints is taken as example to show that the presented models and methods are correct and practicable

    引入求解線性微分方程的狀態空間法，並對其求解時變系統運動微分方程的具體步驟進行了推導；在此基礎上將實測獲得的運動副等效粘性阻尼系數代入系統動力學方程，求解后獲得了考慮運動副阻尼的平面彈性四連桿機構的模擬結果；結果表明運動副的阻尼在一定程度上對振動具有抑制作用。
  10. A damping matrix equivalent method and its application in a kind of vibration problems

    一類振動問題中阻尼矩陣的等效方法及應用
  11. 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，本論文提出了高阻尼橡膠剪切滯回曲線的雙線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線性化模型的等價剪切剛度和等價阻尼比實用計算公式。
  12. 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」 。
  13. Cyclic test of laminated rubber damping bearing at low temperature and calculation of equivalent viscous damping ratio

    疊層橡膠隔震支座的低溫往復試驗及等效阻尼比推算
  14. In phase 2, the nonlinear dynamical properties of the simple, two - degree - of - freedom model of mr damping suspension systems are explored by the method of equivalent linearization

    運用等效線性化方法，分析了懸架系統由磁流變阻尼器而引起的非線性動力學特性。
  15. The framework and results of this study is thus summarized as follows : 1. analyzing the effect of the nonlinear parameters on seismic response. so far the g / g _ max - ( transient dynamical shear modulus over the maximum shear modulus vs. shear strain ) and the - ( equivalent shear hysteretic damping ration vs. shear strain ) curves are widely employed in the experimental method in studying soil dynamic property, supposing under equiamplitude cyclic load

    目前，人們利用實驗手段分析土體動力特性時給出的最基本的描述量是g g _ （ max ） ?曲線（等效動剪切模量與最大動剪切模量的比值隨應變幅值變化的曲線）及?曲線（等效剪切滯回阻尼比值隨應變幅值變化的曲線） 。
  16. Taking the ceramic ball bearing used in micro turbine engines as an example, an experiment method for measuring the equivalent stiffness and the damping of the ball bearings is introduced

    以某微型發動機採用的陶瓷滾動軸承為例，測量了它的等效剛度和阻尼。
  17. So a new method is presented ( equivalent damping of pile lateral damping ) to realize the analysis of integrity pile in soil. in this method, the coefficient of the damping is calculated by the length ratio of each pile in a soil layer to the whole pile in the heterogeneous soil. and through much calculation by use of matlab program, the equivalent damping in the heterogeneous soil is proved to be correct

    提出了採用加權的方法對成層土中樁側土阻尼系數進行等效簡化的概念，即把各層土阻尼系數乘以該層土中樁段長度占樁身總長的比值（即為加權系數） ，然後相加即得到一個等效阻尼系數。
  18. Abstract : based on the bouncing dynamic model & amp; vibration equation established in paper we analyse the damping ratio of vehicle suspension. we discass the stabilation of vibration system when the equivalent damping of shock absorber is zero or negative. we also provide the technology order which makes the system stable and un - corservative

    文摘:該文在建立振動動力學模型和運動方程的基礎上，通過對車輛懸架阻尼比分析，就減振器阻尼等效為零或為負時，對振動系統穩定性影響及產生原因進行了探討.提出設計和製造過程中有效控制系統穩定和非保守特性的技術路線
  19. Based on the bouncing dynamic model & vibration equation established in paper we analyse the damping ratio of vehicle suspension. we discass the stabilation of vibration system when the equivalent damping of shock absorber is zero or negative. we also provide the technology order which makes the system stable and un - corservative

    該文在建立振動動力學模型和運動方程的基礎上，通過對車輛懸架阻尼比分析，就減振器阻尼等效為零或為負時，對振動系統穩定性影響及產生原因進行了探討.提出設計和製造過程中有效控制系統穩定和非保守特性的技術路線
  20. As for the latter, based on linear quadratic regulator theory and linear quadratic gaussion theory, discussion is carried about parameter optimum of ved whose mechanical model is an equivalent stiffness and equivalent damping one. according to linear quadratic regulator theory matrix elementary transform and least - squares method, formulas about parameter optimum of ved are achieved

    在粘彈性阻尼器參數優化方面，採用等效剛度和等效阻尼為力學模型，基於線性二次型高斯（ lqg ）最優控制問題和線性二次型（ lqr ）最優控制問題的理論對ved的參數優化進行了討論。
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