displacement amplitude 中文意思是什麼

displacement amplitude 解釋
位移幅值
  • displacement : n 1 轉位,移動;取代,置換;(人的)流離失所。2 撤換,免職。3 【機械工程】(活塞)排氣量;【航海...
  • amplitude : n. 1. 廣闊,廣大。2. 豐富,充足。3. (思想的)廣度。4. (天體出沒時偏離正東或正西的)角度距離。5. 【物,電】振幅。
  1. 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。
  2. System imitation analysis in the time domain indicates that the amplitude and peak of displacement at the joint between cable and mast are both reduced, and the fatigue life of guyed mast is increased. adjusting the location of mr damper can efficiently reduce the displacement on the top of guyed mast induced by wind

    模擬分析表明可以有效地減小桅桿結構纖繩與桿身連接處的位移響應的幅值與峰值,能提高結構的疲勞壽命,通過調節mr阻尼器的作用位置可以改善對桅桿頂部位移響應的控制效果。
  3. The contrast is higher, the amount of reflect becomes more ; and the sedimet is deeper, the shaking duration becomes longer. so. as the contrast higher and the depth deeper, more waves converge on the basin, more waves interfere with each other, the duration is longer, the amplitude of displacement or accelerate is larger, and the fourier responce spectra contain more components

    所以,基巖與沉積層的剪切波速比越大,沉積層的深度越大,波就越容易聚集在盆地中,中國地震局工程力學研究所碩士論文波與波之間的干涉機會就越多,盆地的振動時間就越長,沉積層的位移和加速度反應就越大,波的頻譜成分就越豐富。
  4. The effect of initial static load on the instantaneous response makes the amplitude of vibration of horizontal and vertical displacement bigger than that without the effect

    初始靜力效應對結構瞬態響應的影響與剛度、質量、阻尼等因素有關,剛度越小,質量、阻尼越大時,初始靜力荷載效應對結構最大位移影響越小。
  5. The quantitative relation of both the p - wave particle displacement proportion to charge and the root mean square of amplitude proportion to the 3 / 2 root of cavity radius was obtained, then the elongated charge, and the vertical delay stacked source, and the concentrating energy source, and the detonating seismic hammer, and opposite collision source were developed

    本文基於球腔震源的縱波位移方程、激發子波的振幅及頻率與藥量的關系等理論基礎,總結了縱波質點位移與藥量成正比、振幅譜均方根與空穴半徑的3 2次方成正比的定量關系。
  6. Through the research, following achievements have been made : ( 1 ) a detailed experimented study has been carried out to investigate the performance of the sma incorporated friction dampers. the effects of displacement amplitude and frequency are taken into account in experiments. good agreement between theoretical and experimental results is obtained

    通過研究主要取得如下成果: ( 1 )首次進行了sma復合摩擦阻尼器的性能試驗研究,根據試驗結果分析了位移幅值、加載頻率等對阻尼器的等效剛度、單位循環耗能和等效阻尼比的影響,並與理論分析結果進行了對比分析,兩者吻合較好。
  7. No bad effect on concrete strength is found within a certain range of amplitude. the ultimate loads of vibration members are not lower than those of normal ones am, when vibration frequency is below 40hz and maximum vertical displacement is within 0. 2mm

    在一定的振幅范圍內,對混凝土強度沒有不利影響,當激振頻率在40hz以下,最大豎向位移振幅在0 . 2mm以內,受振與非振構件相比較,其破壞荷載值沒有降低。
  8. The purpose of this paper is to resolve some key technologies of the amplitude - modulation inductive displacement transducer signal processing circuit with nanometer resolution, such as the design of high stability signal generating circuit ; the technology of high precision digital phase - sensitive detection circuit ; the technology of digital filter and linearization, etc

    本文主要研究調幅式電感位移傳感器精密測量系統中涉及的高精度載波信號發生技術、高精度數字相敏檢波技術、數字濾波及線性擬和等關鍵技術,目的是進一步改善調幅式電感位移傳感器精密測量系統的測量精度,適應納米級測量的要求。
  9. Eddy - current displacement vibration amplitude measuring instrument

    電渦流式位移振幅測量儀
  10. Thus the displacement amplitude of even the loudest sound is extremely small.

    這樣,即使是最強聲音的位移振幅,也還是非常小的。
  11. Then according to anatomical - functional knowledge of human heart, qualitative dynamic information is extracted from quantitative motion vectors interpreting arterial performance, such as displacement direction, amplitude and motion pattern

    然後結合心臟解剖和運動的先驗知識,對血管運動進行定性分析,如位移方向、振幅及運動模式。
  12. The four parameters ( spring inclination a, the frequency of excitation force w, the amplitude of excitation force f, the spring stiffness k ) are the major factors that take great influences on the vibration plate. in order to analyzing the influences of four parameters, the virtual prototype of vibration plate is built in ansys to get inherent frequency from modal analysis. thorough transient analysis in ansys, the curves of displacement n velocity and acceleration is presented

    為了分析這四個參數對系統的影響,首先在ansys中建立振動排秧盤的虛擬模型,採用有限元方法對模型進行了模態分析,得到振動排秧機構的固有頻率;同時對模型進行動力學分析,分析排秧盤的振動量、速度及加速度,並得出相應數據的曲線圖;另外,校核了主要元件彈簧的疲勞強度及使用壽命。
  13. Second, the thermoelastic coupling vibration of cylindrical shell are discussed by means of the same method. the coupling coefficient, amplitude of temperature, initial displacement, ratio of length to radius and that of radius to thickness are main factors which influence the thermoelastic vibration of cylindrical shell ; the higher the coupling coefficient is, the lower the axial force, the axial stress and the axial moment are

    其次,我們用同樣的方法研究了圓柱殼的非線性熱彈耦合振動,主要結論如下:影響圓柱殼非線性熱彈耦合振動的因素主要有耦合系數、溫度幅值、長徑比、徑厚比以及初始位移參數;耦合系數越大,軸向應力、軸向力以及軸向彎矩越小。
  14. According to the indexes of the electricity generating performance and their affecting factors, a system with a hall displacement transducer and a charge amplifier to measure the vibration amplitude of the pec and the quantity of electric charge was developed

    根據壓電陶瓷發電性能指標以及影響因素,設計了採用霍爾位移傳感器和電荷放大器對壓電陶瓷振幅和電荷量進行測量的系統。
  15. Eddy - current displacement vilbration amplitude transducer

    電渦注式位移振幅傳感器
  16. Based on frequency - spectrum - transformation, this algorithm first changes acceleration spectrum into displacement spectrum, then calculates its amplitude, angular frequency and initial angle related to every displacement spectrum, finally sums up all the displacement components and forms the time course of the measured vibration

    該方法採用頻譜轉換法,首先將加速度譜轉換成位移譜,再計算出位移譜中每個頻率分量對應的幅值、圓頻率和初相角,最後對各位移分量進行疊加得到振動位移的時間歷程。
  17. Also this paper designs the amplitude - modulation inductive displacement transducer signal measuring system controlled by dsp, and carries out experiments on it

    研製了以dsp為控制核心的調幅式電感位移傳感器精密測量系統,並對其進行實驗驗證。
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