擬開映射 的英文怎麼說
中文拼音 [nǐkāiyìngshè]
擬開映射
英文
quasi open mapping-
In order to obtain the solution for mapping nc code of a parallel machine tool from virtual axis space to real axis space without the construction of mathematical model, a method of using assembly constraint and dimension driven function of cad software was presented
摘要為了有助於並聯機床數控系統和模擬系統的開發，克服建立數學模型實現機床數控代碼虛實映射計算的缺點，文章提出了綜合利用cad軟體的裝配約束和尺寸驅動功能來實現虛實映射的方法。On the assumption of ignoring the distortion of thickness, this paper determines the rough shape by the geometric modeling method of equal area developing using mixed mesh cell of triangle and quadrangle for the first time, presents the equal area developing arithmetic of quadrangle - triangle. on the virtual geometric symmetry axis, we puts forward the method of determining the developed coordinate of the point on the base band in the development of using regular quadrangle cell, determines the developed shape of internal structure in plane utilizing point - to - point mapping theory. furthermore, we realize the approximate developing of undeveloped - irregular boundary surface using a few triangle cells
本文結合型號研製中小曲率機翼整體壁板類零件坯料展開課題，基於板料厚向變形忽略不計的先驗假設，首創混合四邊形-三角形網格等面積展開的幾何模擬法確定壁板類零件毛坯外形，給出了混合四邊形-三角形網格等面積展開演算法；提出了虛擬分割線的概念，採用虛擬幾何對稱軸，給出了規整四邊形單元展開基帶上結點的計算方法；採用映射原理和求交演算法確定了壁板內部結構信息的展開定位。The exact design methods of switched - current filters are summarized, such as the director synthesis of z - plane, euler mapping, state variable analysis, matrix decomposition, and signal - flow - graph simulation of the lc and switched capacitor prototypes. at the same time, a modified left decomposition matrix method is proposed to overcome the usual problems of large silicon area, high sensitivity and component spreads by minimizing the input circuits. examples of switched - current low - pass, high - pass and band - pass filters are given to verify the feasibility of these methods
總結分析了實現高精度開關電流濾波器設計的各種實用方法，包括z域綜合法、歐拉映射法、模擬無源lc網路和開關電容網路的狀態變量法、矩陣分解法和信號流圖轉置法，並對左分解法加以整理改進，提出一種更為簡潔的設計結構，通過減化輸入電路克服一般電路中存在的佔用矽片面積大、靈敏度高等問題。One is, based on answering the above open problem on a finite dimensional euclidean space by means of partially ordered theory, to research the existence of solutions, global error bounds of proximal solutions and sensitivity of parametric unique solutions and present a class of variable - parameter three - step iterative algorithms for generalized set - valued variational inclusion problems by using - resolvent operator of set - valued mapping. two is to consider the convexity, closedness and boundedness of the solution set of general set - valued variational inclusion problems and the sensitivity of the parametric solution set by means of graphical convergence theory. three is to discuss directly the existence of solutions by using analytical methods for set - valued mixed quasi - variational - like inequalities and suggest a class of direct variable - parameter three - step iterative algorithms for solving generalized set - valued variational inclusions
研究分有三個方面：一是藉助于偏序理論在有限維歐氏空間中解決了上述公開問題，在此基礎上利用集值映射的-預解運算元，研究了廣義集值變分包含問題解的存在性、逼近解的全局誤差界、參數唯一解的靈敏性，並提出了一類變參數三步迭代演算法；二是藉助于圖收斂理論研究了一般集值變分包含問題解集的凸性、閉性和有界性以及參數解集的靈敏性；三是用分析的方法直接討論了集值混合擬類變分不等式問題解的存在性並提出了一類求解廣義集值變分包含問題的直接變參數三步迭代演算法。Chapter 4 proposes 2 algorithms which pointed to digital lcos and analog lcos, compared with other algorithems that have published, this 2 algorithm can achieve 8, 64, 4096 colors and 24bit true color, which means they have very good color adaptability. the clock computing after that mapped the 2 algorithms into the clock definition level of fpga, which means good engineering implementation. the clocks computing here are based on the 2 algorithms, and these establishes foundation for the rest analyse & design works
第四章在前人工作的基礎上提出了針對數字式lcos和模擬式lcos像源的2種fsc演算法，相對于其它公開發表的演算法來說，這2種演算法可實現8色、 64色、 4096色、 24位真彩色等不同色彩數下的fsc顯示，具有更好的色彩適應性，且隨后的時鐘計算將這2種演算法映射到fpga內的時鐘定義層次，具有更好的可執行性和工程實踐性。For the purpose of battlefield terrain simulation, in order to solve the problem of building and real - time display of large scale terrain, designed and developed a 3d terrain model database of missile force virtual training, optimized the model with its key technology, such as levels of detail, texture mapping etc, and proposed a solution for real - time display of large scale terrain based on view - point and double measurement which has been successfully applied into the simulation training of missile force
摘要以戰場地形模擬為目的，針對某導彈陣地大規模地形生成與實時顯示問題，設計開發了適用於某導彈部隊虛擬訓練的三維地形模型數據庫，採用層次細節、紋理映射等關鍵技術對模型進行優化處理，提出基於視點的雙度量法實時顯示大規模地形，將將其成功應用於某導彈部隊虛擬訓練中。Main contents list as follows : 1. eai communication mechanism of vrml 2. feature based model restructure 3. mapping algorithm of model 4. assembly processing analysis 5. creating mechanism of assembly model 6. optimization of model 7. assembly constraint relations processing prototype system of web - based interactive virtual assembly platform is developed based on studies above, and its functions, such as data management of network virtual product, definition of assembly tree structure, control of assembly, etc, are implemented and have gotten well engineering application effect
課題重點研究了該平臺的體系結構及支持網路化虛擬裝配中的相關關鍵技術，包括vrml的eai （ externalauthoringinterface ）通信機制、基於特徵的模型重構、模型的映射生成演算法、裝配過程分析、裝配模型的創建機制、模型的優化處理、裝配約束關系的處理，並在此基礎上開發了一個基於web的互動式虛擬裝配平臺的原型系統，實現了網路化虛擬產品的數據管理、裝配樹結構的定義以及裝配控制等功能，取得了較好的工程應用效果。分享友人