逆程特性 的英文怎麼說

中文拼音 [chéngxìng]
逆程特性 英文
retrace characteristic
  • : Ⅰ形容詞1 (方向相反) contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 (抵觸; 不順從) go aga...
  • : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
  • : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
  1. For the avoidance of rigidity impact of commutative piston mortar pump in movement, the amendatory cam mechanism was designed, and the characteristic of movements was analyzed

    為避免互活塞式砂漿泵在運動過中出現的「剛沖擊」 ,對凸輪機構進行了修正設計,並分析了修正凸輪機構的運動
  2. The property of symmetry can also be used to save a part of the computational effort required for matrix inversion or for a solution of equations.

    對稱的也可用來節省矩陣求中或求解方中所需要的一部分計算量。
  3. Two temperature on the kelvin scale are to each other as the heats trasnferred between the same two reversible adiabatic surfaces at these two temperatures

    上式說明凱式溫度的定義是與在等溫面上一等溫過由一可絕熱面轉換至令一個可絕熱面所吸收之熱量有關。由此定義的凱式溫標與物質的無關。
  4. Based on the special load of the contactless system, this paper analyses and contrasts the principle and feature of the series and parallel resonance circuit. design the high frequency full - bridge series resonance converter and make the main circuit apply to the contactless electrical power deliver system and analyses the process of the main circuit in detail

    根據無接觸電能傳輸系統殊的負載,詳細分析並對比了並聯和串聯變器的工作原理及電路點,設計出應用於無接觸系統中的高頻全橋串聯諧振變器的拓撲結構,進而設計並製作了系統的主電路,詳細的分析了主電路的工作過
  5. Was designed to allow vrml to model humanoid figures for animation - similar to what the commercial program poser can do, with constraints on joint manipulation used for inverse kinematics to provide realistic animated movement

    用來允許vrml對動畫圖進行建模這與商業序poser可以實現的功能類似,但是對于聯結操作(用於向運動,從而提供真實的動畫動作)方面有一些限制。
  6. In the paper, the dissipation behavior of porous media seepage process is analyzed, and it is presented that irreversibility is the essential characteristic of porous media seepage process

    本文分析了多孔介質滲流過的耗散規律,提出了不可是多孔介質滲流問題的本質徵。
  7. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是系統方法的一類,並結合具體課題推導出的模型方將dfl理論進行了擴展,使之適應于電力系統這個強非線對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方,此模型方涵蓋了電力系統中別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線二次型最優控制理論設計出大型汽輪發電機的非線綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態穩定,並且在電力系統遭受小干擾時同樣具有良好的調節能。
  8. The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different

    其中,並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合度,改善hvdc的電氣負阻尼,從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險,此時系統的整體電氣阻尼由hvdc的質決定;但若交流線路中存在串聯補償電容,則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩,變站附近機組同樣存在發生次同步振蕩的可能,此時系統的整體阻尼由串聯補償電容的質決定。
  9. The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization

    其中變極電源採用二次全橋變結構,一次變提供快速的響應速率並給二次變提供能量,二次變提供良好的變極能,使輸出能量最優化,並用其低頻電流減小電弧線能量,控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極電流dcen上,利用電流的高頻壓縮電弧,改善焊縫金屬結晶過
  10. Based on thermodynamics laws, inner - variable theory and analysis of conventional tn - axial tests data and breakage characteristics of loess, this paper proposed that the loess would produce elastic, plastic and nonreversible damage deformation during loading

    從熱力學定律和內變量理論出發,在對常規三軸試驗數據和土樣的破壞分析的基礎上,認為土體在受力過中將產生彈變形、塑變形和不可損傷變形。
  11. This thesis combines artificial neural networks ( nn ) with adaptive inverse control ( nnai ) on the basis of analyzing their principle and characteristics, and applies them in the control of nonlinear system. an application in the design of automatic landing is shown

    本文在深入分析了神經網路和自適應方法的原理與點的基礎上,將神經網路與自適應方法相結合,著重研究了將這種方法應用於非線系統的控制問題,最後,用飛機自動著陸的過,驗證了神經網路自適應方法的效果。
  12. In mmse based detection algorithms it ’ s inevitable to do the matrix inversion operation, and we have found by analysis that such matrices are all positive definition hermite matrices. so, in chapter three, by renumbers the looped variables we induce a new matrix inversion algorithm and based on the symmetry of the data we further

    由於基於mmse的檢測演算法中會不可避免地遇到矩陣求運算,經過分析發現此類矩陣均為正定hermite矩陣,根據此類矩陣的點引入了變量循環重新編號法求演算法,並且根據運算過中數據的對稱提出了進一步的簡化方案。
  13. This paper bring out design method of inverse eigenvalue problem, which adapts to general structures with linear parameters, namely coefficients of all or partial elastic component and inertial component are treated as design parameters, for given some order natural frequency and corresponding vibrating mode, all of useable designing parameters will be got through solving a linear system of equations, thereby stiffness matrix and mass matrix of actual structure are constructed. this paper also discusses existence condition and unique of results

    提出了適用於具有線參數的一般結構的徵值問題的設計方法,即以系統的全部或部分的彈元件與慣元件的系數為設計參數,對于預先給定的若干階固有頻率及相應振型,通過求解一線組即可確定全部實際可行的設計變量,從而構造出實際結構的剛度矩陣和質量矩陣,並論證了解的存在與唯一
  14. First, we calculate out the zero point in a simple numeral method, then we get the phase according to the fact that the symbol of phase changed is opposite in the positive - slope and the negative - slope of triangle wave. this method has the following characteristics : easy to calculate, simple to realize and high precision

    首先用簡單的數值方法較準確的計算出零點時刻;進而根據三角波掃頻時正相位變化符號相反的,巧妙的完成了相位計算,該方法具有計算簡單、實現方便、準確度高等點。
  15. The author puts forward the thought of analyzing bifurcation and chaos in dc / dc converters with the theories of nonlinear dynamics, and the thought of controlling nonlinear problems with linear controlling methods of modern control theory. chapter three ( research on bifurcation and chaos in pwm dc / dc converters ) first theoretically analyzes and emulates period - doubling bifurcation of pwm dc / dc converters with the " inverse " piecewise numerical emulation. then the author analyzes in detail the sampled - data model, the mathematical model, which is suitable to the nonlinear research of dc / dc converters

    第三章( pwm型dc dc變換器中分岔與混沌的研究)首先採用「向」分段數值模擬法對pwm型dc dc變換器中的倍周期分岔進行了理論分析與數值模擬;接著詳細地分析了適合於dc dc變換器非線研究的數學模型一采樣數據模型,提出了dc dc變換器中存在環面分岔與鞍結分岔的可能;最後通過電路實驗驗證了在電路參數發生變化時, dc dc變換器經歷一系列的倍周期分岔通向混沌的演化過,並對混沌態下dc dc變換器的輸出進行了分析與小結。
  16. This property contains the ascii - encoded sha1 hash of a mailbox uri ; this encoding is a one - way mapping and cannot be trivially reverse - engineered to give the original e - mail address

    包含郵箱uri的ascii編碼的sha1散列;該編碼是單向映射並且不能很一般地進行向工以給出原始的電子郵件地址。
  17. All of these results described the process of the phenomenon and delineated the mechanism of it. the experiment was performed in two conditions : heated plane and unheated plane

    這些參數體現了邊界層轉捩過中流動的變化規律,揭示了密度分層結構中轉捩現象發生的機制。
  18. After analyzing and studying the characteristics of the sequence generation of grey system theory, this paper proposes the concept of three - dimensional data sequence, extends the grey system theory from one - dimensional data sequence to three - dimensional data sequence and enlarges the application range of the theory in engineering. this paper also proposes a decomposition coefficient selection method and a partial concave - convex characteristic decision method to the preference generation, which can solve the problem that the internal point generated by the original method was inconsistent with the actual system. considering the errors existed in ends generation with step ratio and smooth ratio methods, the author proposes a tendency average generation and improves the quality of the generation greatly

    灰色建模與向工兩者有其十分相似的內在關系,本文通過學科交叉,深入研究兩種不同學科理論,在繼承灰色系統理論這一我國原創理論思想的基礎上,補充和豐富了新的內涵並將其滲透到向工中的數據測量與數據處理技術的應用之中,使機械工中甚少應用的這一灰色系統理論得到了進一步的拓展,主要成果如下: 1 .分析研究了灰色系統理論中序列生成的點,提出了三維數據序列的概念,將灰理論的一維數據序列拓展到三維數據序列,拓寬了灰理論在工中的應用范圍;提出了有偏生成演算法中生成系數分解選取方法和數據序列點局部凹凸決定生成系數的方法,解決了原有方法生成內點與實際系統不一致的現象;針對級比和光滑比用於生成端點有較大誤差的情況,提出了趨勢均值生成演算法,大大提高了端點生成的精度。
  19. In this paper, dynamic inversion control law is designed to eliminate its global non - linearization and unstable aerodynamic force etc. and based on the time - scale separation principle, the control system can be divided into fast loop and slow loop. but there are still lots of unknown disturbances that may cause great damages to stability when flying

    由於在飛行過中大范圍非線、具有非定常氣動力等,本文採用了非線動態控制律來構成全局線化的質,根據時標分離的原則,設計了空天無人飛行器的快迴路和慢迴路控制器。
  20. Model calculation and analysis of heat and mass transfer of air and water in a direct contact forward flow

    空氣與水直接接觸熱質交換順流和流過比較
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