利用动态显式有限元程序LS-DYNA,采用多步法和单步法两种方式,以某型号副车架为例,对曲线空心构件的内高压成形过程进行了数值模拟研究,给出了两种方式下副车架内高压成形后的壁厚分布.在模拟的基础上进行弯曲、预成形和内高压成形试验,获得了副车架内高压成形件,给出了典型截面的壁厚分布,并与两种模拟结果进行了比较.结果表明,采用多步法数值模拟技术模拟曲线空心构件的内高压成形过程,考虑了弯曲和预成形对后续的内高压成形过程的影响,模拟结果与试验结果基本吻合,能够更加准确地反映曲线空心构件的内高压成形过程.
参考文献
| [1] | HORTON F.Hydroforming application trends in automotive structures[A].Fellbaeh,2003:7-14. |
| [2] | SPORER J;DELKER M;ZISLER A.Hydroforming at BMW[A].Feltbaeh,2003:91-109. |
| [3] | Ch. Hartl .Research and advances In fundamentals and Industrial applications of hydroforming[J].Journal of Materials Processing Technology,2005(2/3):383-392. |
| [4] | 苑世剑,韩聪,刘钢,苗启斌,王仲仁.轿车副车架内高压成形[J].锻压技术,2004(03):41-44. |
| [5] | S. J. Yuan;C. Han;X. S. Wang .Hydroforming of automotive structural components with rectangular-sections[J].International Journal of Machine Tools & Manufacture: Design, research and application,2006(11):1201-1206. |
| [6] | YUAN Shijian;WANG Xiaosong;Liu Gang.Research on hydroforming of tubular components with changeable cross-sections[A].Yokohama,Japan,2002:1495-1500. |
| [7] | G. T. Kridli;L. Bao;P. K. Mallick;Y. Tian .Investigation of thickness variation and corner filling in tube hydroforming[J].Journal of Materials Processing Technology,2003(3):287-296. |
| [8] | F. Dohmann;Ch. Hartl .Hydroforming-applications of coherent FE-simulations to the development of products and processes[J].Journal of Materials Processing Technology,2004(1/2):18-24. |
| [9] | Hokook Lee;C.J. Van Tyne;David FIeld .Finite element bending analysis of oval tubes using rotary draw bender foe hydroforming applications[J].Journal of Materials Processing Technology,2005(2):327-335. |
| [10] | 雷丽萍,方刚,曾攀,张慧玲.汽车副架液压胀形预成形工艺设计的数值模拟[J].塑性工程学报,2002(02):76-78. |
| [11] | 苑世剑,刘钢,韩聪.通过预成形降低内高压成形压力的机理分析[J].航空材料学报,2006(04):46-50. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%