赵茂俞,薛克敏,李萍.基于灰色系统理论的铝合金覆盖件成形优化模拟[J].农业机械学报,2008,39(10):207-210.
.[J].Transactions of the Chinese Society for Agricultural Machinery,2008,39(10):207-210.
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基于灰色系统理论的铝合金覆盖件成形优化模拟   [下载全文]
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DOI:10.3969/j.issn.1000-1298.2008.10.081044
中文关键词:  铝合金  车身覆盖件  拉深筋  数值模拟  灰色系统理论  多目标优化
基金项目:
赵茂俞  薛克敏  李萍
合肥工业大学
中文摘要:以压边力、拉深筋高度、凸筋圆角半径、凹筋圆角半径为自变量,进行四因素四水平的正交试验,模拟铝合金覆盖件成形,获得成形工艺参数与破裂、起皱、厚度最大变薄率等质量数据的目标函数。利用灰色系统理论,分别计算得到成形工艺参数对单目标函数的关联系数和多目标函数的关联度,多目标优化将转换为单目标优化问题。进一步计算各成形工艺参数的平均关联度,获得优化的压边力、拉深筋截面几何参数,以此进行有限元模拟验证,优化的结果为变形均匀,表明成形的质量明显提高。
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Abstract:The aluminum alloy auto panel strength beam was numerical simulated by FEM software while press force, the depth, die radius, punch radius of draw bead were independent variables, the data about the crack, winkle and the thinning were acquired by an orthogonal experiment. Then the grey relational generating between forming process and the single objective function, the grey rational grade of multi-objective were calculated by the grey theory system, thus the multi-objective design was changed into the single-objective design. Furthermore the average grey relational grade of the forming process was analyzed. Employing the optimization data, the auto panel forming was numerically simulated. The conclusion demonstrated that the sheet forming quality is obviously increased by the optimized forming process parameters. 

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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