element sensitivity 中文意思是什麼

element sensitivity 解釋
元件靈敏度
  • element : n 1 要素；成分；（構成）部分；分子。2 【化學】元素；【數學】元，素；【機械工程】單元；單體；【無...
  • sensitivity : n. 1. 敏感（性）；感受性。2. （儀器等的）靈敏性。3. 【攝影】感光度。
  1. Based on the analysis of the dynamic behavior of nanning bridge by means of spatial finite element models, the nonlinear dynamic time history method is used to conduct the sensitivity analysis of the parameters of viscous dampers ( damping constant c and damping exponent ? ) of the bridge and the laws of influence of the parameters on the seismic response thereof have been obtained

    摘要在來用空間有限元模型對南寧大橋動力特性分析的基礎上，採用非線性動力時程分析方法，對南寧大橋粘滯阻尼器參數（阻尼常數c 、阻尼指數? ）進行敏感性分析，得出粘滯阻尼器參數對南寧大橋地震響應的影響規律。
  2. This paper investigates the pressure sensitivity of an interferometric fiber - optic hydrophone element with a concentric mandrel including an enhanced sensitivity layer based on the theory of elastic mechanics and finite element method ( fem ) and then investigates its harmonic frequency and vertical directional property using fem, and verifies all the results derived from theoretic analysis at last

    本文分別基於彈性力學的理論和有限元的方法對含彈性增敏層的同軸干涉型光纖水聽器基元的聲壓靈敏度進行研究，並基於有限元的方法對其諧振頻率和垂直指向性進行分析，最後用實驗對各項分析結果進行了驗證。
  3. Abstract : 145 samples of eight plants were collected from lanmuchang and yangjiawan and quantitative analyses were made of the ore - forming elements in the plant ashes. considering the three principles of the plant indicator for mineral exploration, namely certainty, sensitivity and feasibility, this paper evaluates comprehensively the indicating functions of the eight plants, on the basis of some quantitative indexes such as the relation coefficient between plant ash and ore - forming element, concentration coefficient, etc. it also discusses the relationships between the anomaly of plant ashes and the fault zone, alteration zone mineralization zone and orebody, showing the significance of these plants to the prospecting

    文摘:在濫木廠和楊家灣鉈（汞）礦床（點）對芒箕、南燭、榔榆、大金發蘚、蜈蚣草、石松、黃花草、醉魚草等8種植物取樣145件，在提出確定找礦有效指示植物三原則（確定性，敏感性，可行性）的基礎上，依據植物灰分與底質成礦元素相關系數、植物灰分富集系數和襯度系數，較全面地分析和評價了8種植物的找礦功能；討論了其異常的分佈與斷裂帶、蝕變帶、礦化帶以及工業礦化（礦體）之間的關系，並指出了其找礦意義。
  4. Finally according to the above mentioned results, two universal ulpa were made and their performance were tested. these results indicated that on the whole, the values of parameters, such as sensitivity of each element, center frequency, relative bandwidth and cross coupling among near elements and so on, and their consistency all meet the ask of technique. therefore, both of transducers performance are favorable

    最後根據上述研討結果，製作了兩個通用超產相控線陣換能器，並進行了性能測試，結果表明兩個換能器各陣元靈敏度、中心頻率、相對帶寬、相鄰陣元間串波等參數值及其一致性均基本滿足技術要求，換能器性能良好。
  5. Based on the theories of gear engagement, contact analysis, friction and heat transfer, a three - dimensional finite element model of gear tooth was established to investigate temperature distributions and variations along the contact path over a range of applied loads and operating speeds with consideration of lubrication conditions. sensitivity analysis of surface temperature to gear configuration, frictional heat flux, heat transfer coefficients, and oil and ambient temperature was conducted and the major parameters influencing surface temperature were evaluated

    本文基於齒輪嚙合原理、輪齒接觸分析、摩擦學和傳熱學，以有限元分析方法和理論分析計算相結合為手段並以實驗測量結果作為參考，建立了適用於工業應用並具有較高計算精度的高速齒輪傳動輪齒溫度分析的模型和方法，系統地分析了輪齒本體溫度的大小和分佈以及齒輪幾何、載荷及轉速和潤滑冷卻條件等對輪齒本體溫度的影響。
  6. Firstly, we analyze the transient and steady character of single phase high - impedance grounding fault. secondly, based on wavelet analysis on checking mutational signal and direction high frequency protection theory, utilizing zero sequence current and module current, this paper provides a new scheme including fault starting element, fault phase selection element, directional element and main criterion. this scheme can bear high impedance and is immune to system surge and frequency warp, which gets over the shortcoming of the lack of sensitivity

    由於現有的保護方案無法快速有效地切除此類故障，本文在詳細分析了單相高阻接地故障的穩態和暫態特性的基礎上，從小波分析原理出發，利用小波變換檢測突變信號的原理，以零序電流、模電流等為研究對象，結合方向高頻保護的原理，設計了一套包含啟動元件、選相元件、方向元件、主保護的保護新方案。
  7. A linear programming method of vector loop used in the analysis of mechanism motion and its error was introduced, the possibility of using the sensitivity of kinematic analysis for error was analyzed, and it was proposed for the error analysis model of the mechanism to make equivalent substitution for the dimensional error with basic kinematic joint element ( kinematic pair ) and as well to implement the linear programming method of vector loop for error analysis within the adams

    摘要介紹機構運動分析與誤差分析的向量環路線性規劃法，分析運用運動分析靈敏度進行誤差分析的可能性，提出在機構誤差分析模型中用基本運動連接元素（運動副）對尺寸誤差進行等價替換，使誤差分析向量環路線性規劃法在adams中實現。
  8. This thesis deduces computational formulations of displacement sensitivity and stress sensitivity in structural shape optimization considering geometric nonlinear element. in the calculation of stress sensitivity, the modules required to cut the stiffness matrix of node coordinates few. in order to simplify calculation and make program conveniently, this thesis uses half - parser method

    在空間剛架結構的形狀優化設計中，關鍵的一項工作就是計算應力靈敏度，在計算應力對剛架結構形狀優化的設計變量? ?結點坐標的靈敏度時，需用到單元剛度矩陣對結點坐標的導數。
  9. And use this optimization program computate the boom structure shape of heavy bucket - wheel stacker & reclaimer ; based on shape optimization, we use second optimization technology to optimize structure section size. the optimization results are satisfied. the computation indicates that considering the geometric nonlinear element can enhance the calculation efficiency and precision of optimization design evidently in sensitivity analysis

    編制了空間剛架結構優化設計程序（ 3dfem - opt . for ） ，並利用編制的優化程序對某大型斗輪堆/取料機前臂架在最大應力約束條件下，進行結構形狀優化設計;在形狀優化的基礎上，採用二次優化技術，對結構的截面尺寸進行了優化。
  10. With the development of the electrical power enterprise and computer technology, it is important to design a highly efficient ， better maintainable and graphic interface based software package for power system analysis and computing in the paper ， the author put forward a kind of new sensitivity analytical method which take into account load characteristic to fix on the weak bus, and with example to prove the exactness of the algorithm ; developed the visual electrical power system analysis and computing and graphic sporting system, the software package was developed by using the idea of object oriented programming ， the method of class ' s inheritance ， polymorphism and virtual function, and set up equipment - chart element - the interreaction between class this make it easy to expand, maintain and replant

    隨著電力事業和計算機技術的發展，研製高效率、可維護性強、具有良好用戶界面的圖形化計算分析軟體成為電力系統分析計算研究的重要任務之一。本文提出了一種計及負荷特性的靈敏度分析方法來對薄弱母線進行確定，並用算例驗證了演算法的正確性；開發了圖形化的電力系統分析計算軟體和圖形支持系統，該軟體完全採用面向對象的設計方法，充分利用了類的繼承、多態性質和虛函數的方法，建立起設備圖元類之間的相互關系，使軟體具有高度的開放性、可維護性、可移植性。
  11. In present dissertation, the model of ert was established, the method to deduce the system equation using finite element method ( fem ) was discussed, and the process of calculating the voltage, resistance and sensitivity matrix through numerical computation was also introduces. because during the process of positive problem solution, errors are unavoidable, so the evaluation of the results were carried out through data and diagram, also the influence to the results caused by the change of parameters was analyzed

    由於在正問題求解過程中，被測域的離散化、計算公式的離散化以及數值計算的近似處理等都將不可避免的引入誤差，因此論文中對計算結果進行了評價，分析了傳感器的參數（電極數，電極尺寸等）以及計算過程所用參數（如剖分精度）的改變對計算結果（電勢、電阻、敏感場）的影響。
  12. On the basis of association of finite element computation with optimization design and analysis of sensitivity of cable force variation to structural response and objective function ' s sensitivity, an optimization method for rationally bridge - completing cable force of large - span cable - stayed bridge was presented, where the structural internal force, linear control condition, and nonlinearity influence of structural geometry were taken into account in the entire process of optimization

    摘要將有限元計算與優化設計分析相結合，在索力變化對結構響應和目標函數敏感性分析的基礎上，綜合考慮結構內力、線形控制條件，提出一種全過程計入結構幾何非線性影響的大跨斜拉橋合理成橋索力優化方法，採用一階分析法對成橋索力進行迭代優化。
  13. Abstract : this paper studies the sensitivities in the structural optimization of the sheet cover, including the stress sensitivity and the displacement sensitivity as well as the eigenvector sensitivity. the sensitivities are solved by the finite element method. a beam element and a plate element are used for the structural analysis of the sheet cover. some equations about the sensitivities are given out and are applied to the structural optimization of the sheet cover. the results prove to be satisfactory

    文摘:分析了在薄壁覆蓋件結構優化中應力敏度和位移敏度的計算方法，利用有限元法進行結構分析和敏度計算，推導出敏度的計算公式，並應用於薄壁覆蓋件的結構優化設計，得到了滿意的結果.薄壁覆蓋件的有限元分析採用了板單元和梁單元，應用實例的計算結果表明，應力敏度、位移敏度等的計算方法準確、可靠
  14. Based on two - dimensional muti - classs continuous equlibrium assignment model, a new model using triangle finite element technique is proposed to solve the sensitivity analysis problem of regional transportation pivots

    摘要在二維連續空間多類型平衡配流模型的基礎上，採用三角形單元有限元離散方法，建立了區域交通樞紐設施敏感性分析的一般模型，並給出了常用指標的敏感性計算公式。
  15. Price is an important element that affects traffic mode choice. with the rapid development of urban subway traffic construction, it has especial meaning to study actively sensitivity analysis on subway transit demand with the change of subway ticket price and to discuss the way to determine price from theoretical analysis to practical test

    價格是影響交通方式選擇的重要因素，在城市軌道交通建設迅猛發展的今天，研究軌道交通需求隨票價變化的敏感性，從理論與實踐上探討定價的方法，具有現實意義。
  16. Take certain typed three compartment sedan as an example, on the basis of simulation calculation of torsional rigidity and by applying the finite element theory and through sensitivity analysis of torsional rigidity via board thickness of part this paper gained the key frame structure that affects the torsional rigidity of white body and under the guidance of this frame structure the measures of further enhancing its torsional rigidity was laid down for the being studied sedan pattern

    以某型三廂轎車為例，在扭轉剛度模擬計算的基礎上，應用有限元理論，通過零件板厚對扭轉剛度的靈敏度分析，得到了影響白車身扭轉剛度的關鍵框架結構，並在此框架結構的指導下，對所研究車型制定了進一步提高其扭轉剛度的措施。
  17. Study of sensitivity and stability of methane carrier catalytic element

    甲烷載體催化元件靈敏度穩定性的研究
  18. A fiber - optic strain sensor based on a differentiating sagnac interferometer is demonstrated to measure the rolling force by measuring strain of the elasticity element inside the rolling machine. the system is simple in structure and possesses high accuracy, super sensitivity

    本文設計了一種微分干涉式光纖應變傳感器，通過測量軋機內安裝的彈性元件的應變來測量軋制力，其結構簡單，精確度及靈敏度高，易於安裝與使用。
  19. Following problems are mainly discussed in this work : how to build a parametrical finite element ( fe ) model how to choose the design parameters, constraints and objective of the correction model how to evaluate different sensitivity calculating methods and choose optimization algorithms how to get the normal mode - shapes and describe the relativity between normal mode - shapes how to solve the correction problem of fe model by using structure optimization techniques in each paragraph, illustrative examples are used to explain the methods and finally an engineering application of an aircraft correction is presented in the end

    主要進行了如下幾個方面的工作：參數化有限元模型的建立；修正模型設計參數、約束及目標函數的確定；靈敏度方法的比較及優化演算法的選取；固有振型的獲取及模態相關性的定量描述；採用結構優化技術解決有限元模型修正問題。在模態修正過程中，由於修正固有振型涉及大量的有限元計算結果數據，此前，雖有不少文獻在理論上研究了它的修正方法，但都沒有給出工程應用實例，而本文解決了固有振型修正的工程應用問題。
  20. The element is then used to analyse an irregular shaped cavity. a semi - analytic method, in which the derivatives of stiffness matrix and mass matrix are obtained by the difference technique, for sensitivity analysis in dynamic shape optimization is presented in this dissertation

    本文採用基於局部差分的半解析演算法，進行特徵值的靈敏度分析，並將計算結果提供給結構力學分析模塊，實現了空腔聲學的有限元分析和靈敏度計算。
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