摆锤式汽车座椅头枕吸能性试验台的设计

发布时间：2018-06-30 05:00

  本文选题：汽车座椅 + 吸能性试验　； 参考：《机械设计与制造》2016年03期

【摘要】：针对普遍使用的重力摆锤式汽车座椅头枕吸能性试验台关键参数,提出了一种提出了一种虑及反碰撞冲量的计算方法。在《GB11550-2009汽车座椅头枕强度要求和试验方法》中撞击质量折算公式基础之上,根据刚体动力学建立数学模型,并利用动量定律与撞击中心理论,进行了撞击中心与碰撞点重合的条件推导,得出了摆锤轴承中心与撞击点距离表达式,并进行摆长设计。最后依据机械优化理论,以摆锤总质量最小为目标,摆杆几何尺寸、材料为变量进行了优化设计,最后得出了摆杆的几何参数。
[Abstract]:According to the key parameters of the gravity pendulum chair head and pillow energy absorption test bed, a calculation method considering the anti-collision impulse is proposed. On the basis of the formula of mass conversion of impact mass in "GB11550-2009", the mathematical model is established according to the dynamics of rigid body, and the law of momentum and the theory of the center of impact are used to make use of the law of momentum and the theory of impact center. The condition of the overlap between the impact center and the impact point is derived, and the distance expression between the center of the pendulum bearing and the impact point is obtained, and the pendulum length is designed. Finally, according to the theory of mechanical optimization, taking the minimum total mass of the pendulum as the target, the geometric size of the pendulum rod and the material as the variables, the optimization design is carried out. Finally, the geometric parameters of the pendulum rod are obtained.
【作者单位】： 长春理工大学机电工程学院;
【基金】：吉林省科技发展计划基金项目(20130206028GX)
【分类号】：U467.52
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本文编号：2085008