Historical significance of integrating maximum principle and minimum principle 黨的最低綱領和最高綱領相統(tǒng)一的深刻歷史意蘊
By using 3 - d isoparametric element , the global stiffness matrix equation for the piezoelectric laminate is obtained on the bases of minimum principle of total potential energy 由于最小勢能原理,建立了單元剛度矩陣和壓電材料的整體剛度方程。并且推導了壓電層合板的邊界條件。
And then , according to minimum principle , each uav smoothes its own path which the coordination agent selects such that the dynamic constraints are sati sfied and the length is preserved 通過在協(xié)同規(guī)劃層調(diào)整eta ,尋找到既能滿足時間約束,又能使團隊代價最小,且盡量使單架無人機的個體代價次最小的路徑。
The second , it is proposed that a foc mentioned above can be modeled with a fast time optimal position control system based on the pontryagin ' s minimum principle , which may become a speed - sensorless time optimal one by using speed estimator 接著,分析了pontryagin極小值原理,指出用bang - bang開關信號可對上述系統(tǒng)實現(xiàn)最優(yōu)時間控制,若速度量采用估計,則生成無速度傳感器的時間最優(yōu)系統(tǒng)。
Abstract : in this paper , a rigid plastic dynamicequations of the stucture subjected to impact by a rigid projectile areobtainedbased on the minimum principle in dynamics ofelastic - plastic continua with finite deformation . it is shown that the method is reliable and straightforward 文摘:應用有限變形的最小加速度原理,推導出了小變形或有限變形構件受到剛性飛射物撞擊時的剛塑性運動方程,指出該方法具有直接、簡捷和可靠的特點
The traditional optimization technique usually combined the fundamental goal of the controller and performance criterion into a single performance index to be minimized by applying technique based on bellman ' s principle of optimality or pontryagin ' s minimum principle . this view of control is designed to obtain the best solution 傳統(tǒng)的優(yōu)化技術通常把各種控制要求結合而形成一個單獨的性能指標,應用bellman的最優(yōu)性原理或者龐特里雅金的極小值原理等使其最小化,從而得到問題的一次性最優(yōu)解。
According to the minimum principle in energy , we analyze the microcosmic mechanism of magnetic domain construction and the main factor that affect the shape , size and connecting of the magnetic domain etc . from the microcosmic mechanism of ferromagnet , we analyze how stress influence the magnetic domain and magnetic domain wall , and discover the increase of stress energy and magnetism elasticity energy which destroy the balance of system energy make up the influence of magnetic domain structure , then set up basic disciplinarian between stress and characteristic of magnetism 同時根據(jù)能量最小原理,從理論上分析了磁疇結構存在的微觀機理以及影響磁疇結構運動、變化的主要因素,得出了應力的存在將影響磁疇的形狀、大小和搭配方式等結論。從鐵磁晶體的微觀機理出發(fā),研究了應力對磁疇和磁疇壁的影響,發(fā)現(xiàn)應力影響磁疇結構的本質(zhì)是由于應力的作用使得鐵磁晶體增加了應力能和磁彈性能,體系為了達到新的平衡,導致了磁疇結構變化,并研究了應力與鐵磁晶體磁特性之間的基本規(guī)律。
Review of linear algebra , applications to networks , structures , and estimation , lagrange multipliers , differential equations of equilibrium , laplace ' s equation and potential flow , boundary - value problems , minimum principles and calculus of variations , fourier series , discrete fourier transform , convolution , applications 線性代數(shù)回顧,網(wǎng)絡,結構以及估計的應用,拉格朗日乘數(shù),平衡態(tài)的微分方程,拉普拉斯方程和勢流,邊值問題,最小值原理和變分法,傅立葉級數(shù),離散傅立葉變換,卷積,應用。