复合材料自动铺带工艺工时估算及软件开发

Process Time Estimation Model for Composite Automated Tape Laying and Its Code Development

基于制造工艺过程的成本模型,建立复合材料自动铺带工艺工时估算方法,开发了工时估算软件。根据铺带头的运动规律建立工时估算方程,并考虑了材料卷盘的更换时间;采用Delphi语言和SQL Service数据库管理系统编制工时估算软件,通过Visual Basic语言对CATIA进行二次开发,编制零件工时估算特征提取插件,提高软件效率。应用软件对某型飞机的平尾多肋式翼盒与多梁式翼盒方案的铺放时间进行分析,结果表明,多梁式翼盒由于采用整体化结构设计,可减轻结构重量,缩短制造工时,降低制造成本。

A process time estimation model is proposed for composite automated tape laying （ATL） on the basis of the manufacturing process-based cost modeling, and the process time estimation software is developed. Time estimating equations for ATL are established based on the motion law of the tape lay- ing head, and the time for changing a tape roll is considered. Then a time estimation code is developed by using software of Delphi and SQL Service, and a part feature extraction plug-in is built using Visual Basic software to improve the efficiency of the developed code based on CATIA secondary development. The ATL lay-up time of two kinds of horizontal stabilizer outboard sections with multiple ribs and mul- tiple spars are estimated by using the developed code. The results indicate that the horizontal stabilizer outboard sections with multiple spars can lighten the structure weight, shorten the process time, and reduce the cost due to the integral structure design concept.