TRB波纹管结构参数对碰撞吸能的影响

Influence of TRB Bellows Structural Parameters on Impact Energy Absorption

通过实体单元建立TRB波纹管碰撞吸能有限元模型,研究TRB波纹管的薄区厚度、过渡区厚度差、波纹管壁半径和过渡区长度对吸能、比吸能和初始峰值力的影响,通过正交试验设计得到试验方案,数值模拟结果发现,增加薄区厚度和过渡区厚度差能够提高波纹管吸能和比吸能,增加过渡区长度能够降低初始峰值力。

Establish a finite element model of TRB bellows collision energy absorption through solid elements,and study the influence of TRB bellows thin zone thickness,transition zone thickness difference,bellows wall radius and transition zone length on energy absorption,specific energy absorption and initial peak force.The experimental plan was obtained through orthogonal experimental design.Numerical simulation results found that increasing the thickness of the thin zone and the thickness difference of the transition zone can increase the energy absorption and specific energy absorption of the bellows,and increasing the length of the transition zone can reduce the initial peak force.