計算偏差條件 的英文怎麼說
中文拼音 [jìsuànpiānchātiáojiàn]
計算偏差條件
英文
off-design condition- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 算 : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
- 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...
- 條 : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
- 件 : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
- 計算 : 1 (求得未知數) count; compute; calculate; reckon; enumerate 2 (考慮; 籌劃) consideration; pla...
- 條件 : 1. (客觀的因素) condition; term; factor 2. (提出的要求) requirement; prerequisite; qualification
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A simulation is carried on three swirling flow with different nonaxisymmetric tangential injection in a horizontal straight pipe to find if neglect their deflations whether they equate to axisymmetric module. a conclusion can be found that when nonaxiwymmetric conditions are occurred, there will be deflections near entrance that are different from axisymmetric condition, and these deflections will be erased on area far from entrance
另外對水平圓管中三種非軸對稱切向入流按軸對稱近似計算時進行數值比較分析,發現三種非軸西安理工大學碩士學位論文對稱切向入流條件下在近入口處出現很大的偏差,這種偏差不能忽視;而經過充分的發展之後,這種差別將被抹平,即在離入口較遠的區域各種情況的計算結果與軸對稱條件比較差別不大。With the in - built drip irrigation belt and thin wall chip irrigation belt taken as examples, the flow rate distribution and hydraulic losses of drippers along capillary tubes at different inlet pressures were measured under the conditions of horizontal slope and slope gradients of 0. 5 % and 1 %, then the uniformity of capillary tubes was calculated at different slope gradients and pressures in consideration of the manufacture deviation of drippers
摘要以內鑲式滴灌帶和薄壁滴灌帶為研究對象,測定了平坡、 0 . 5 %坡度和1 %坡度時,不同入口壓力下滴頭沿毛管的流量分佈和水力損失,並結合滴頭的製造偏差,計算得出不同坡度和壓力條件下滴灌毛管的均勻度。It is achieved the common work of pile - soil - structure on nsas by using nonlinear bars from single pile calculation as the structure boundaries. the results show that under some 3 - d loading conditions, significant error can be induced due to the nonlinear characteristic of pile, simply using a nonlinear spring from single pile calculation as the structure boundaries
在三維受力狀態下,由於樁周土的非線性,迭加原理不再適合,而目前許多有限元程序只是簡單地把單樁計算得到樁頭等效非線性彈簧作為結構的邊界條件,這樣將導致出現比較大的偏差。The numerical simulation result obtained by taking the dimensionless mass transfer coefficient as the input parameter of the mathematical model is consistent with the 73 groups of the experimental data and the discrepancies of the enthalpy efficiency and regenerative efficiency are mainly within 15 %
以實驗得到的量綱一傳質系數作為數學模型的輸入條件,數值計算結果與73組實驗數據吻合很好,全熱效率和再生效率的偏差均集中在15 %以內。This algorithm improves confidence in se by estimating parameters and states at the same time. simulation results on test power systems which range in size from 4 to 118 buses, have shown the virtues as follows : getting unbiased estimation without detecting and identifying bad data in measurements ; solving state and parameter estimation for power system with good convergence and excellent robust property ; increasing the numbers of iterations a little bit with the test systems expanded ; estimating many transformer taps simultaneously and remaining the main state estimation ; keeping the estimated relative error within + 0. 1 % and processing efficiently equality constraints and ill condition with polynomial complexity
對ieee ? 4 118節點系統和廣西主網進行的模擬結果表明: l1范數估計具有不良數據拒絕特性,當量測量中存在不良數據時,該演算法在不經檢測和辨識不良數據情況下仍是無偏估計,具有良好收斂性,所需迭代次數隨著問題規模擴大而增長極小;能夠同時估計多個變壓器抽頭,並保持狀態估計主體;在滿足可觀測性條件下,估計的相對誤差保證在0 . 1以內;能夠有效處理等式約束和病態條件,並具有多項式時間性。This paper implements differential formation of quasilinear differential equations, furthermore lumped equivalent circuit mode at boundary and constraints between voltage and current have been incorporated to find boundary conditions. because partial differential equations can transform into ordinary differential equations, it transforms telegraph equations into ordinary differential equations
本文根據偏微分數值解理論應用一階擬線性方程的差分格式,並根據電壓、電流在始端、終端上的約束關系,運用傳輸線集中參數的等效模型確定邊界條件;最後模擬計算得到響應波形。First, we simply introduced the optical wave - guide theory : the fluctuation equations of planar wave - guide and the preparation of embranchment wave - guide. then based on maxwell equations and in the paraxial limit we deduced the formula needed in calculating fd - bpm. the refractive index section was n ( x, y )
然後我們在maxwell方程的基礎上,根據慢包絡近似理論,在折射率截面為n ( x , z )的條件下,利用有限差分近似來代替偏微分方程,推出了有限差分光束傳播法計算所需要的公式。Meanwhile, this technology can be used for compressed air energy storage ( caes ) in which the working pressure may be up to 15mpa. for hat, properties of humid air have been calculated at high pressures and low temperatures as well
在典型的熱力過程的計算時,特別是在計算高壓低溫條件下的濕空氣的熱力學性質時,把濕空氣看作理想氣體會產生很大的偏差,這種偏差對熱力過程中的質量和能量平衡的影響是不可接受的。分享友人