Fourthly , because of the fluctuation of grouping efficacy during the fcm iteration process , the iteration solution selecting procedure is put forward , with which the infeasible solution of last iteration will not be selected . 5 第四,針對fcm迭代過程中制造單元構(gòu)建方案成組效率的波動(dòng)性,提出了迭代方案選擇方法,基本避免了fcm選擇的最終迭代方案不可行的問題。
The increment - iteration solution strategy is adopted in the nonlinear finite element analysis . arc - length method and the incremental plastic reversibility procedure are used to find the complete load - deflection curve and deal with elastic unloading occurring in elasto - plastic analysis 有限元分析中采用增量?迭代方法,結(jié)合弧長法和塑性增量可逆的假定,可以計(jì)算出完整的荷載位移曲線,并考慮彈塑性問題中可能出現(xiàn)的彈性卸載問題。
In this dissertation , we firstly prove that any dirichlet problem is indeed equal to a voltages problem of networks . we give five solutions to dirichlet problem in two dimensions ; among these five solutions , we prove that the iteration solution and the solution of relaxations are exponential convergence , then we estimate their respective convergence rates ; secondly , we discuss random walks on general networks , prove that there is an one to one correspondence between networks and reversible ergodic markov chains ; thirdly , we give probabilistic interpretation of voltages for general networks : when a unit voltage is applied between a and b , making va = 1 and vb = 0 , the voltage vx at any point x represents the probability that a walker starting from x will return to a before reaching b ; furthermore , we study the relationship between effective resistance and escape probability : starting at a , the probability that the walk reaches b before returning to a is the ratio of the effective conductance and the total conductance 本文證明了任何邊值的dirichlet問題都可轉(zhuǎn)化為求解電路電壓的問題:給出了計(jì)算平面格點(diǎn)上dirichlet問題的5種方法:證明了迭代法和松馳法都是指數(shù)收斂的,并分別給出收斂速度的估計(jì);討論了一般電路上的隨機(jī)徘徊,驗(yàn)證了電路與可逆的遍歷markov鏈?zhǔn)且灰粚?yīng)的;給出了電路電壓的概率解釋:當(dāng)把1伏電壓加于a , b兩端,使得v _ a = 1 , v _ b = 0時(shí),則x點(diǎn)的電壓v _ x表示對應(yīng)的markov鏈中,從x出發(fā),到達(dá)b之前到達(dá)a的概率;進(jìn)一步地,給出了逃離概率與有效電阻之間的關(guān)系:從a出發(fā),在到達(dá)b之前到達(dá)a的概率為有效傳導(dǎo)率與通過a的總傳導(dǎo)率之比。