余法線象 的英文怎麼說
中文拼音 [yúfǎxiànxiàng]
余法線象
英文
conormal image-
6. using simulation data of cz - 2f launch vehicle fault simulation system, the result of simulation based on cz - 2f launch vehicle pitch direction indicate that hm filtering fault detect can assure whether fault occurs, and this method achieves a better robustness and improves detect accuracy
以cz ? zf大型運載火箭作為研究對象，利用c2 ? 2f運載火箭故障模擬系統的模擬數據，使用h _濾波故障檢測方法對cz ? 2f運載火箭的俯仰通道進行了故障檢測模擬，通過對余量曲線的分析表明這種方法能較好的判斷故障是否發生，由此說明了利用h _濾波理論進行魯棒故障檢測的可行性。Especially, when the isocline of x is monotone decreasing in 0 < x < 1, the svstem has no limit cycle and is globally stable ; next, we construct a saddle bifurcation at the boundary equilibrium and a degenerated bogdanov - takens bifurcation at the interior equilibrium by choosing appropriate parameter values in the following two sections, where our work are based on the theory of central manifolds and normal torms. we prove that is a codimention 3 focus - type equilibrium. system ( 6. 1 ) will have two limit cycles at some appropriate bifurcation parameter values, and have homoclinic or double - homoclinic orbits at some other appropriate bifurcation parameter values ; at last, we study the qualitative properties of the system at infinite in the poincare sphere
因為系統在（ 0 ， 0 ）點處沒有定義，這給研究其在（ 0 ， 0 ）附近的動力學性質帶來了困難，我們應用文獻[ 17 ]中關于研究非線性方程奇點的系列理論和方法，圓滿解決了這一問題，給出了第一象限內當t +或t -時，在全參數狀態下系統的軌線趨于（ 0 ， 0 ）點的所有可能情況，其相圖也得以描繪；並且，系統不存在極限環的幾個充分條件我們也予以列出，當x的等傾線在0 x 1范圍內遞減時，系統不存在極限環，全局漸近穩定；然後，我們以中心流形定理和正規型方法為主要工具，巧妙選擇參數，分別構造了一個余維2的鞍點分岔和一個余維3退化bogdanov - takens分岔，證明了平衡點是余維3的焦點型平衡點，存在參數， m ，的值使得系統（ 6 . 1 ）有兩個極限環，還存在參數， m ，的另外值使得系統（ 6 . 1 ）有同宿軌或雙同宿軌。3. the thesis brings forward random number sequence shuffling technology in a creative way, it can reduces the linear congruential generator pertinency and discrete grid phenomena prominently. 4
創造性地提出在遺傳演算法中隨機數序列處理的新方法? ?隨機數序列洗牌技術，有效克服了線性同余發生器產生的隨機數序列相關與離散網格現象。This essay has touched upon the following work : 1. has built up theoretic models including static mathematic models of air compressor, combustion chamber, gas turbine, waste heat recovery boiler and steam turbine which are deduced according to the feature and theory of the equipment of the object of study. upon establishment of each model based on the actual conditions, a method of multiple imitation and combination is applied to parts which have already got characteristic curves to have achieved quite accurate curves whilst the method of neural net is applied to the parts which have no characteristic curves for establishment of models
本文進行了以下的主要工作：建立理論模型，根據對象的實際設備的特點和理論關系推導壓氣機、燃燒室、燃氣輪機、余熱鍋爐、汽輪機的靜態數學模型；根據本研究的實際情況，在建立各部件模型時，對已有特性曲線的部件，採用多項式擬合的方法，得到較為準確的特性，而對部分沒有曲線的特性，則採用神經網路的方法建立模型。分享友人