推力偏差 的英文怎麼說

中文拼音 [tuīlìpiānchā]
推力偏差 英文
thrust deviation
  • 推 : 動詞1 （向外用力使物體移動） push; shove 2 （磨或碾） turn a mill or grindstone; grind 3 （剪或削...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 偏 : Ⅰ形容詞1 （不正; 歪斜） inclined to one side; slanting; leaning 2 （只側重一面） partial; prejudi...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 推力 : visatergo; soot; propulsive force; thrust; momentum thrust
  1. Because it is impossible to adjust the air bearing absolutely balance, the difference between mass center and rotation center must lead to a notable gravity disturbance torque. in the process of identification, modeling and identification of gravity disturbance torque is considered, and an extended kalman filter is educed for identifying air bearing inertia matrix and gravity disturbance torque, and then the algorithm is validated

    由於氣浮臺平衡調試方法和手段的限制，實驗過程中氣浮臺質心與轉動中心有一定的位置偏差，必將導致較大的重力干擾力矩，在辨識演算法的推導過程中，重點考慮了重力干擾力矩的建模和參數辨識問題，推導了氣浮臺的轉動慣量和重力干擾力矩辨識的擴展卡爾曼濾波演算法，並對演算法進行了數學模擬和全物理模擬驗證。
  2. 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

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。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程，此模型方程涵蓋了電力系統中特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，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性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性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性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  3. According to the parameter range of humid air used in humid air turbine and compressed air energy storage ( caes ) system, the applied range of thermodynamics properties of humid air is determined. 2. based on virial state equation and the corresponding - state principle, expand - corresponding - state principle is introduced to describe the virial coefficients of state equation

    對應態理論是一個普適性理論，因此對應態維里方程具有一定的外推性，計算了本文提出濕空氣熱力學參數范圍內的壓縮因子; 4 .應用本文提出的對應態維里方程，計算了濕空氣的偏差焓和偏差熵。
  4. The innovations consist of : synthetically restraining the filter ' s divergence, as effectively improved the filter ' s numerical stability ; a parallel filter structure is creatively designed to eliminate system biases ; and sprt method is used to control the adjustment of the noise statistics, so as to ameliorate the tracking performance of time - variant noises

    對常規的次優遞推sage自適應濾波器進行了改造，包括：對濾波結果發散進行綜合抑制，提高了濾波器的數值穩定性；採用并行結構，消除了結果偏差；應用sprt控制調整，增強了濾波器的動態跟蹤能力。
  5. In view of the fact that prediction of creep and shrinkage with current bridge provision for specific concrete under specific ambience sometimes has a big discrepancy with real values, a new method to obtain the expressions of creep and shrinkage from newly - built pc bridges short - term test results is presented, and relative equations have been established. therefore, a reliable long - term prediction on effect due to creep and shrinkage in pc bridges holds a firm bearing point

    研究中發現某一特定環境下工作的混凝土用現有規范公式預測得到的徐變、收縮特性常有偏差較大的現象，由此提出了從新建預應力混凝土橋梁短期試驗結果推算梁體相應素混凝土在工作環境下的徐變、收縮特性的思想和方法，並建立了計算式，為新建預應力混凝土橋梁可靠的徐變效應分析提供了前提和保證。
  6. In this paper, we not only analysed the different effects of the disturbing gravitation on the trajectories of different ranges, but also discussed shortcomeings of the spherical harmonics model by which the external gravitation potential of the earth is shown usually. when the model is applied directly to the calculation of the trajectory, since the recurrent calculation can not be avoided, an increase in orders of model will result on a decrease in the speed of calculation

    本文重點分析了擾動引力對不同射程導彈的落點偏差的影響，並且討論了原有計算擾動引力的球諧函數法在計算速度上的缺陷（由於勒讓德函數的遞推計算，使得隨著模型階數的增加模型的計算速度下降） ，然後對其進行改進使其能更好的適用於彈道計算。
  7. First, the basic theory of static load sharing mechanism has been presented, mainly including manufacturing and assembly error of each gear component ' s axis and each bearing ' s axis, gear size ( tooth thickness ) errors, simultaneous error of middle two - tooth. the formula of equivalent mesh error has been deduced, the load sharing coefficient has been computed. second, the influences of each error on the static load sharing coefficient have been discussed

    首先，從靜力學的角度研究了星型齒輪系統均載的基本原理；確定了影響齒輪系統均載特性的製造和安裝誤差，主要包括：各個齒輪構件的中心軸線製造和安裝誤差、軸承中心軸線的製造和安裝誤差、齒厚偏差、雙聯星輪同時嚙合線誤差；推導了這些誤差的當量嚙合誤差的計算公式，分析了系統的均載特性。
  8. According to flight dynamics, a particle model and an attitude model in launching coordinate system and in quasi missile body coordinate system are established, the influence imposed by constant wind, thrust bias of the motor and connection bias are analyzed

    應用飛行動力學理論，建立了發射坐標系與準彈體系下助推段和分離過程質點運動和姿態動力學模型，分析常風干擾、發動機推力偏差和裝配誤差影響等。
  9. On the other hand, due to the difference of the loading form on eccentric loading column with push - out test and short - column test, the bond - slip performance ca n ' t be displayed in it

    同時，由於推出試驗（ push - outtest ）和短柱試驗（ short - columntest ）與偏壓柱的受力狀況有差別，並不能真正反映出構件中的粘結滑移性能。
  10. ( 4 ) considering such actual difficulties as lacking of engineering data and discrepancy in managing level, four methods for damage assessment are proposed in the thesis based on expert knowledge, which are weighted average method, fuzzy comprehensive evaluation method, generalized quantification method and set pair analysis method to make useful supplements to the neural network method. disadvantageous effects, caused by dissimilarity of subjective factors such as every abstract expert ' s knowledge, level, discernment and emphasis on problem, are eliminated to some extent in each method. furthermore, there are not any complicate mathematic or mechanical calculations, and conclusion can be easily got only by some simple reasoning and comparing from experience

    （ 4 ）考慮到工程資料少、管理水平不一的實際困難，建議了基於專家知識的加權平均法、模糊綜合評判法、模糊廣義量化法和集對論方法等四種損傷評估方法，作為橋梁損傷神經網路評估方法的有益補充，這些方法均能從一定程度上消除由於專家個人偏好、知識層次不同等造成的差異，且一般不涉及復雜的數學或力學計算，只需根據經驗進行一些簡單推理和比較就能得到結果。
  11. Simulation results indicate that the closed - form guidance law with robustness is fit to the finite propulsive reentry mission and insensitive to the initial position errors, propulsion direction errors and observation errors

    模擬結果表明，該閉路初制導能夠完成有限推力情況下的再入初制導任務，對初始位置誤差、推力方向偏差和測量誤差不敏感，具有一定的魯棒性和適應性。
  12. Near several years, the lawsuit was continuously perplexing to register the one catastrophe topic of cpa ' s trade, and especially supervising enlarging of dynamics along with verifying the certificate audit vocational work, more and more cpas arc frequently pushed the defendant ' s scat by the quilt, are asked to undertake administration, economy and even criminal responsibility, no doubt among them has one side of cpas " delinquency, but the different views of the concerned department and the society public to cpa audit law duty, as well as the deviation and confusion from these is taking the very important effect, too

    近幾年來，法律訴訟一直是困擾著注冊會計師行業的一大難題，特別是隨著對證券審計業務監管力度的加大，越來越多的注冊會計師們被頻繁地推上被告席，被要求承擔行政、經濟乃至刑事責任，其中固然有注冊會計師失職的一而，但有關部門和社會公眾對注冊會計師審計工作應承擔的法律責任的性質的不同看法，以及由此引起的相關法律規定的偏差和混亂也在其中起著不可忽視的作用。
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