Historical significance of integrating maximum principle and minimum principle 黨的最低綱領(lǐng)和最高綱領(lǐng)相統(tǒng)一的深刻歷史意蘊(yùn)
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(shì)能原理,建立了單元?jiǎng)偠染仃嚭蛪弘姴牧系恼w剛度方程。并且推導(dǎo)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(guò)在協(xié)同規(guī)劃層調(diào)整eta ,尋找到既能滿足時(shí)間約束,又能使團(tuán)隊(duì)代價(jià)最小,且盡量使單架無(wú)人機(jī)的個(gè)體代價(jià)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(kāi)關(guān)信號(hào)可對(duì)上述系統(tǒng)實(shí)現(xiàn)最優(yōu)時(shí)間控制,若速度量采用估計(jì),則生成無(wú)速度傳感器的時(shí)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(yīng)用有限變形的最小加速度原理,推導(dǎo)出了小變形或有限變形構(gòu)件受到剛性飛射物撞擊時(shí)的剛塑性運(yùn)動(dòng)方程,指出該方法具有直接、簡(jiǎn)捷和可靠的特點(diǎn)
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(shù)通常把各種控制要求結(jié)合而形成一個(gè)單獨(dú)的性能指標(biāo),應(yīng)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(wèn)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(shí)根據(jù)能量最小原理,從理論上分析了磁疇結(jié)構(gòu)存在的微觀機(jī)理以及影響磁疇結(jié)構(gòu)運(yùn)動(dòng)、變化的主要因素,得出了應(yīng)力的存在將影響磁疇的形狀、大小和搭配方式等結(jié)論。從鐵磁晶體的微觀機(jī)理出發(fā),研究了應(yīng)力對(duì)磁疇和磁疇壁的影響,發(fā)現(xiàn)應(yīng)力影響磁疇結(jié)構(gòu)的本質(zhì)是由于應(yīng)力的作用使得鐵磁晶體增加了應(yīng)力能和磁彈性能,體系為了達(dá)到新的平衡,導(dǎo)致了磁疇結(jié)構(gòu)變化,并研究了應(yīng)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(luò),結(jié)構(gòu)以及估計(jì)的應(yīng)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(shì)流,邊值問(wèn)題,最小值原理和變分法,傅立葉級(jí)數(shù),離散傅立葉變換,卷積,應(yīng)用。