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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。
Torsion beam forming a variety of processes, including sheet metal cold stamping, pipe cold stamping, pipe hot stamping and pipe hydroforming. In order to reveal the influence of different processing technics on the serviceability of torsion beam, numerical simulation and test methods were used to study the difference of the cross-section performance of torsion beam beam formed by different processing technology. Comparing the modal, stiffness and strength of plate and tube torsion beam assembly And fatigue life difference. The results show that the use of hydroforming technology can increase the torsional stiffness and bending stiffness of the beam. Using the tubular torsion beam relative to the plate torsional beam can reduce the weight, and the modal frequency, stiffness, strength and fatigue life of the beam can be obtained Greatly increased, so that the direction of the crack parallel to the beam, to reduce the risk of fatigue.