锻压技术

不同成形工艺对扭力梁使用性能的影响研究

英文标题：Study on the effects of different forming processes on the performance of torsion beam

作者：陈仙风陈智勇苏海波

分类号：TG386

出版年,卷(期):页码：2014,39(3):112-116

摘要：

扭力梁成形工艺有多种，包括板材冷冲压、管材冷冲压、管材热冲压和管材液压成形等。为了揭示不同加工工艺对扭力梁使用性能的影响，采用数值模拟和试验方法，研究采用不同加工工艺成形的扭力梁横梁截面性能的差异；比较板状和管状扭力梁总成模态、刚度、强度和疲劳寿命的不同。结果表明：采用液压成形工艺制造扭力梁可以提高梁的扭转刚度和弯曲刚度；采用管状扭力梁相对于板状扭力梁可以降低重量，使梁的模态频率、刚度、强度和疲劳寿命等都得到很大提高，使其产生裂纹的方向平行于横梁，达到降低疲劳危险的作用。

There are several torsion beam forming processes, including sheet cold stamping, tube cold stamping, tube hot stamping and tube hydroforming, etc. To obtain the effects of different forming processes on the performance of torsion beam, numerical simulation and experiments were carried out to analyze the differences in cross-section performance of torsion beam using different forming processes. The comparisons of mode, stiffness, strength and fatigue life of plate and tubular torsion beam assembly were studied. The results show that the torsional rigidity and bending rigidity of torsion beam increase by using hydraulic forming technology, the tubular torsion beam has some considerable advantages compared to the plate torsion beam which can reduce weight and improve modal frequency, stiffness, strength and fatigue life, and also reduce the fatigue risk for crack direction parallel to the cross-beam.

基金项目：

参考文献：

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