共搜索到31352条信息,每页显示10条信息,共3136页。用时:0小时0分0秒624毫秒
J. Cent. South Univ. Technol. (2009) 16: 0478-0481 DOI: 10.1007/s11771-009-0080-9 Support vector machine forecasting method improved by chaotic particle swarm optimization and its application... into consideration, an improved SVM forecast method (i.e. the CPSO (chaotic- particle swarm optimization)-SVM forecast method) was proposed. Firstly, the global search capability of the PSO was improved......
; design expert; design of experiments; analysis of variance (ANOVA); response surface methodology (RSM); optimization 1 Introduction Friction stir welding (FSW) has recently caught great attention... arc welded Ti-6Al-4V alloy [J]. Materials and Design, 2008, 29(1): 92-97. [11] PALANI P K, MURUGAN N. Optimization of weld bead geometry for stainless steel claddings deposited by FCAW [J]. Journal......
A topology optimization method based on element independent nodal densityYI Ji-jun(易继军)1, 2, ZENG Tao(曾韬)1, RONG Jian-hua(荣见华)2, LI Yan-mei(李艳梅)3(1. School of Mechanical and Electrical Engineering... of Water Resources and Hydro Power, Changsha 410131, China)Abstract:A methodology for topology optimization based on element independent nodal density (EIND) is developed. Nodal densities are implemented......
Special-shaped tube drawing forming and conformal optimization of die cavity QI Hong-yuan(齐红元), ZHU Heng-jun(朱衡君) School of Mechanical and Electric Control Engineering,Beijing Jiaotong University, Beijing 100044, China Received 20 April 2006; accepted 30 June 2006 Abstract: Aiming at the issues in quick processing and modeling design of drawing special-shaped tube die, by Conformal......
to the actual design and optimization. As an example, a 3D finite element model of 350 kA aluminum reduction cells was developed and the local flexes were modified to show the effect of the method. 2... of the method. Suggestions on selection of three modes were also put forward. The results show that the methods of resistance optimization can reduce the current variation about 180 A compared......
and design selection criteria were considered. The strategy was to use creations of nature to inspire five innovative conceptual designs of the ACB structure and the AHP method was applied to perform... need several modifications for production and assembly purposes, which will be completed in a further study. Key words: conceptual design; automotive crash box; hybrid method; concept selection method......
electromagnetic compression of aluminium tube was investigated through the design optimization method based on sequential coupling numerical simulation and experiments. The results show that the tendency... the design optimization method based on the sequential coupling numerical simulation is feasible, which can be used to realize the controllable and precise deformation of metal tube. Key words......
] exploited time-space tradeoff method via compression technology with huge consumption of computing resource for compression and decompression. All the optimization methods above aimed at reducing memory...J. Cent. South Univ. Technol. (2011) 18: 490-498 DOI: 10.1007/s11771-011-0722-6 Multi-core optimization for conjugate gradient benchmark on heterogeneous processors DENG Lin(邓林), DOU Yong(窦勇......
of parameter adjustment. PSO based on the substitution method and PSO based on the random initialization method control the optimization process by intervening in the position update of "bad particles... Geophysics, 2019, 176(8): 3607-3628. DOI: 10.1007/s00024-019-02155-x. [13] LIU Shuang, HU Xiang-yun, LIU Tian-you. A stochastic inversion method for potential field data: Ant colony optimization [J......
and the difficulty of establishing an effective mathematical model, a coordinated optimization method for dosage reagent based on key characteristics variation tendency and case-based reasoning is proposed... of the coordinated optimization setting method for reagent dosages in the whole flotation process is necessary to improve the flotation effect. The reagent dosage control has attracted great interest......