reasonable gradient 中文意思是什麼

reasonable gradient 解釋
適當的坡度
  • reasonable : adj. 1. 合理的；明白道理的，懂道理的；有理性的。2. （要求等）適當的；（價錢等）不高的；適度的。adv. -bly ,-ness n.
  • gradient : adj. 1. 傾斜的。2. 【動物；動物學】步行的，能步行的。n. 1. 〈英國〉（道路的）傾斜度，坡度，坡路。2. 【物理學】梯度，陡度，（溫度、氣壓等的）變化率，梯度變化曲線。
  1. The key to prediction of casting shrinkage / porosity lies in ascertaining the critical value of temperature gradient and niyama criterion. the thesis put forward two methods to ascertain the value, one is which is positive - direction and the other is negative - direction. we verify the realistic arithmetic of temperature gradient method and niyama criterion method by experiment, and we can draw a conclusion that the arithmetic is correct and reasonable in most cases and choice of developing tool is sound

    臨界梯度值和新山判據臨界值的確定是實現縮孔縮松預測的關鍵，本文提出了確定臨界值的正向法和反向法，並以高鉻鑄鐵件縮孔縮松預測和鑄造工藝改進為研究對象，應用正向法，確定了溫度梯度法的臨界值為180 m 。
  2. Based on the results of previous researchers, the following instigations have been carried out in this paper : ( 1 ) employing a reasonable local resonance model which can accurately embody the heat - generation behavior due to resonance and vibration - heat mode in delaminated region, the dynamic response and temperature distribution in the small delamination region of a laminated beam are formulated. influence of the excitation frequency on the temperature gradient formation is analyzed numerically, and several meaningful conclusions are drawn. ( 2 ) for laminated plates with delaminations, due to complexity of the analytical solution, the finite element method is employed to analyze their temperature distributions and satisfactory results are also obtained

    本文在前人研究的基礎上，對此方法進行了進一步的探討，主要做了以下的工作： （ 1 ）選取合理的、能夠準確反映由共振而產生熱量的行為的局部響應模型，以及合理的振動熱模式，推導了一維層合梁小脫層區域的振動響應及梁的溫度分佈，並編製程序計算了該層合梁在激勵一段時間后的溫度分佈趨勢，分析了激勵頻率對溫度梯度形成的影響，得到了一些有意義的結論； （ 2 ）對於二維層合板，由於解析解的形式異常復雜，本文採用有限元計算軟體對其溫度分佈進行了分析，也得到了較為滿意的結果。
  3. A reasonable criterion to control error of element was studied. base upon this criterion, an indicator to drive the mobile node of bce was presented. in order to improve the efficiency, an implementing scheme ( according to the distribution of strain energy density ) was suggested when to consider the fact that the high gradient usually appears only in a very local region, especially in the case of huge amount of computation

    3 .在誤差控制方面，提出了bezier移動節點單元法中節點移動的收斂判據，研究了節點移動的導向原理；在mathematica和fortran環境下實現了完整的計算編程；在處理高梯度問題的實際應用中，提出了高應變能密度區的局部化處理的求解方案。
  4. It reduces greatly the computational complexity of matrix - vector multiplication in conjugate gradient iteration improves the efficiency of mlfma while the reasonable accuracy is maintained

    該方法在保證合理計算精度的同時大大降低了迭代過程中矩陣矢量相乘的計算復雜度，提高了多層快速多極子方法計算效率。
  5. By fitting reasonable external prestressing tendons to ensure ultimate bearing capacity of the bridge, to ensure stress reserve of the main beam, to reduce effectively principal tensile stress, to renew line state of bridge structure and gradient

    通過合理地設置體外預應力束，確保了該橋的極限承載能力；增大了主梁的應力儲備；有效地減少了主拉應力；恢復了橋面線形和坡度。
分享友人
分享到 Line

分享到臉書