PSO is a population-based optimization algorithm, which mimics the social behavior of animals in a flock. It makes use of individual and group memory to update each particle position allowing global and local search optimization. The objective function considered was the total weight of the structure subjected to stresses, displacements and forces constraints. The effects of the parameters were investigated as well and such combination of tuning parameters promote a better global search behavior avoiding premature convergence while rapidly converging to the optimal solution. Results showed the effectiveness of the proposed method by comparing with ANSYS Design Optimization Tool (zero-order method). The PSO with the tuning parameters makes it an ideal method for offshore wind turbines foundations optimization tasks.(2) A reliability analysis method for pile foundation bearing axial loads based PSOThe performance function of pile foundation's axially bearing capacity sometimes is nonlinear and complex, on the basis of geometric meaning of structural reliability index, an optimum model with PSO for structural reliability analysis under arbitrary random variables was established, The PSO algorithm is very efficient to solve global optimization problemsIts use in structural reliability field presents not only the advantage of its facility of implementation, but also the possibility to obtain the design point and the failure probability with a good accuracy. In addition, PSO is a zero order algorithm, for no derivative is necessary for its implementation.

本文的研究針對(duì)樁式海上風(fēng)機(jī)基礎(chǔ)結(jié)構(gòu)的特點(diǎn)色色色视频成年网站，在國(guó)內(nèi)外有關(guān)研究成果的基礎(chǔ)上對(duì)海上風(fēng)機(jī)基礎(chǔ)結(jié)構(gòu)優(yōu)化設(shè)計(jì)理論和可靠度方法一些相關(guān)問(wèn)題進(jìn)行了較為深入的研究，具體做了以下幾個(gè)方面的工作：(1)基于粒子群優(yōu)化的樁式海上風(fēng)機(jī)基礎(chǔ)確定性?xún)?yōu)化設(shè)計(jì)方法樁式海上風(fēng)機(jī)基礎(chǔ)的優(yōu)化設(shè)計(jì)是一個(gè)復(fù)雜的国产黄色片av、非線(xiàn)性約束的優(yōu)化問(wèn)題黄页网站激情视频，針對(duì)傳統(tǒng)的基于梯度信息的優(yōu)化方法在處理非線(xiàn)性問(wèn)題中易陷入局部最優(yōu)解的問(wèn)題，本文將一種耦合懲罰函數(shù)的PSO算法引入到海上風(fēng)機(jī)基礎(chǔ)結(jié)構(gòu)概念設(shè)計(jì)中欧洲久久久久久，PSO算法是從群體動(dòng)物聚集覓食這一活動(dòng)中受到啟發(fā)而發(fā)展的欧美性爱片网站，該算法利用個(gè)體和群體的信息共享不斷改進(jìn)自身的位置從而進(jìn)行局部和全局最優(yōu)搜索，本文中以樁和三腳架連接段直徑及壁厚為設(shè)計(jì)變量欧美亚操逼，以基礎(chǔ)總重量作為優(yōu)化的目標(biāo)函數(shù)2021国内精彩偷拍视频，在給定的約束條件下建立了三腳架基礎(chǔ)優(yōu)化數(shù)學(xué)模型，另外本文還研究了PSO參數(shù)變化對(duì)結(jié)果的影響中国xxxx6，協(xié)調(diào)的參數(shù)組合可以避免陷入早熟收斂而能夠快速的獲得全局的最優(yōu)解日韩视频网页，通過(guò)與ANSYS優(yōu)化模塊的計(jì)算結(jié)果比較驗(yàn)證了該方法的有效性狼友网址永久入口，本方法為海上風(fēng)機(jī)基礎(chǔ)的確定性設(shè)計(jì)提供了一條有效的途徑高清Av在线中文字幕不卡。