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| 0.618法在一步成形模拟方法中的应用 | |
| 引用本文： | 那景新,陆善彬,焦键,胡平.0.618法在一步成形模拟方法中的应用[J].塑性工程学报,2003,10(6):30-33. |
| 作者姓名： | 那景新 陆善彬 焦键 胡平 |
| 作者单位： | 1. 吉林大学,汽车工程学院,长春,130022 2. 吉林大学,机械科学与工程学院,长春,130022 3. 吉林大学,汽车动态模拟国家重点实验室,长春,130022 |
| 基金项目： | 国家自然科学基金重点项目 (1983 2 0 2 0 ) |
| 摘 要： | 合理地选择冲压件的毛坯外形 ,可以提高板料的成形性 ,同时也可以提高材料利用率。本文着重研究了一步成形模拟方法中松弛因子对收敛的稳定性和收敛效率的影响问题 ,提出了一种基于 0 618法的松弛因子优化算法 ,并且设计编制了计算程序。通过球冠、L形件、行李箱盖外板、T形件 4个算例 ,与一系列未经优化的固定松弛因子结果进行了比较 ,验证了此方法的有效性 |
| 关 键 词： | 一步成形 松弛因子 优化 |
| 文章编号： | 1007-2012(2003)06-0030-04 |
| 修稿时间： | 2003年6月29日 |
Application of 0.618 algorithm in the one step forming simulation approach |
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| NA Jing-xin.Application of 0.618 algorithm in the one step forming simulation approach[J].Journal of Plasticity Engineering,2003,10(6):30-33. | |
| Authors: | NA Jing-xin |
| Abstract: | Select blank reasonably can mainly improve sheet for ma bility, make full use of original material and reduce the amount of subsequence work. In this paper, the effect of relaxation factor to the stability and effici ency of constringency in the one step forming simulation approach is studied emp hatically. An optimization algorithm of relaxation factor based on 0 168 algori thm is proposed, and the computer program is also implemented.The result is comp ared with those calculated by fixed relaxation factor which has not been optimiz ed through four examples such as Sphere-shaped workpiece, L-shaped cup, trunk lid and T-shaped workpiece. It is found that algorithm can obtain favorable eff ectiveness. |
| Keywords: | one step forming relaxation factor optimization algori thm |
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