automatic mesh generation for machine tool dynamic analysis 機(jī)床整機(jī)靜動態(tài)分析有限元網(wǎng)格的自動生成
automatic mesh generation scheme for plane by isoparametric coordinates and its programming 二維有限元網(wǎng)格的自適應(yīng)剖分及程序?qū)崿F(xiàn)
Fully automatic meshing, with optional fine-grained user control for specific components 全自動嚙合,可選細(xì)粒度的用戶控制,為具體的組成部分。
The programmes are realized with borland c + + builder . the computational solution shows that the automatic mesh system and the programmer developed are correct 用borlandc++builder編程,得出正確的結(jié)果,很好的驗(yàn)證了網(wǎng)格自動劃分和數(shù)值計(jì)算的正確性。
The successful application of computer simulation techniques in sheet metal forming rises a urgent requirement for fully automatic mesh generation algorithm cae仿真技術(shù)在汽車覆蓋件沖壓成型工藝中越來越多的應(yīng)用,對快速的、自動化的有限元網(wǎng)格生成算法提出了強(qiáng)烈的要求。
First, automatic mesh generation approach based on the fuzzy inference for fe analysis is put forward, by which expert experiences on mesh generation can be fully used and reasonable meshes can be generated rapidly 首先,提出了基于模糊推理的電磁場有限元網(wǎng)格自動剖分法,可充分利用現(xiàn)有知識和專家經(jīng)驗(yàn),快速生成疏密合理的離散網(wǎng)格。
Based on the manifold element method, zienkienwicz and zhu's error estimation is adopted . a fine mesh is got by automatic mesh generation . soil body is nonlinear, and incremental elastoplastic can simulate it well 根據(jù)zienkienwicz和zhu提出的應(yīng)力平滑誤差原理計(jì)算流形單元誤差,應(yīng)用自行編制的平面三節(jié)點(diǎn)網(wǎng)格生成器,進(jìn)行流形單元的網(wǎng)格細(xì)剖和優(yōu)化。
automatic mesh generation can save time, reduce error, enhance efficiency, and improve the computation reliability . so searching for high speed, efficient and automatic mesh generation methods is of great importance 網(wǎng)格的全自動生成技術(shù)不僅可以節(jié)省時(shí)間,而且可以減少差錯(cuò),為計(jì)算帶來高效性和可靠性,因此研究網(wǎng)格的快速、高效的全自動生成算法就顯得尤為重要。
Automatic mesh generation can save time, reduce error, enhance efficiency, and improve the computation reliability . so searching for high speed, efficient and automatic mesh generation methods is of great importance 網(wǎng)格的全自動生成技術(shù)不僅可以節(jié)省時(shí)間,而且可以減少差錯(cuò),為計(jì)算帶來高效性和可靠性,因此研究網(wǎng)格的快速、高效的全自動生成算法就顯得尤為重要。
The method has three features : 1 ) the dimensions used in commercial cad system are selected to be the design variables of shape optimization . 2 ) a mapping between geometry objects and finite element objects such " as meshes, structure properties is set up to assist in defining finite element models on geometries . 3 ) an automatic mesh generator and a method by which structure properties is assigned from geometry objects to finite element objects automatically are used to update finite element models during the optimization process 通過將幾何模型的設(shè)計(jì)參數(shù)作為有限元模型的形狀控制參數(shù),實(shí)現(xiàn)了有限元模型的參數(shù)定義;通過建立幾何模型與有限元網(wǎng)格及模型物理描述之間的關(guān)聯(lián),實(shí)現(xiàn)了基于幾何造型的有限元模型定義;利用基于幾何模型的全自動網(wǎng)格生成方法及物理描述分派方法,實(shí)現(xiàn)了有限元模型的自動生成及應(yīng)參數(shù)變化的自動更新;并以參數(shù)化造型軟件mdt為支撐平臺,開發(fā)了相應(yīng)的參數(shù)化有限元建模程序。