摆锤式汽车座椅头枕吸能性试验台的设计  

Energy Absorption Device with Pendulum of Automobile Seats Head Restraints

作　　者：姜涛[1] 张桂林[1] 高俊鹏[1] 李会明[1] 

机构地区：[1]长春理工大学机电工程学院,吉林长春130022

出　　处：《机械设计与制造》2016年第3期114-116,120,共4页Machinery Design & Manufacture

基　　金：吉林省科技发展计划基金项目(20130206028GX)

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。According to the key parameters of the test platform with pendulum widely used in energy absorption test of automobile seats head restraints, a calculating method considering the anti-collision is proposed. According to the quality conversion formula in 《GBl1550-2009. Strength requirement and test of automobile seats head restraints））, a mathematical model of the pendulum system is established based on the rigid body dynamical theories. With the momentum law and collision theory, the equation describes what condition for the center of collision and the point of impact to coincidence is derived. For system optimization, based on the theory of mechanical optimization, the minimal pendulum weight is taken as the objective function, multiple parameters as design variables. Finally, the pendulums＇ optimum parameters are calculated.

关 键 词：汽车座椅 吸能性试验 撞击中心 优化设计 

分 类 号：TH16[机械工程—机械制造及自动化] U467.3[机械工程—车辆工程]