摘要
为了实现某重型商用车变速箱的轻量化,开展了将灰铸铁壳体换成铝合金壳体的研究。首先,通过模态试验对有限元模型进行了验证,采用多体动力学方法得到壳体5个轴承的动载荷,基于静力学分析求得壳体的应变能;然后,建立了板和壳的质量关于4个影响因素的数学模型,确定各影响因素对板和壳的质量的影响强弱顺序;最后,综合壳体的应变能、影响因素对壳体添加加强筋。结果表明,轻量化后壳体的强度、刚度均满足要求。
In order to achieve a heavy commercial vehicle gearbox lightweight,the gray cast iron shell is replaced by aluminum alloy shell.Firstly,the finite element model is verified by modal test.Then the dynamic loads of the five bearings of the shell are obtained by the method of multi-body dynamics,and the strain energy of the shell is obtained based on the static analysis.Then,the mathematical model of four influencing factors on the mass of plate and shell is established to determine the order of the influence of each influencing factor on the mass of plate and shell.The results show that the strength and stiffness of the lightweight shell meet the requirements.
作者
胡溧
唐森泉
杨啟梁
王博
Hu Li;Tang Senquan;Yang Qiliang;Wang Bo(School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430065,China)
出处
《机械传动》
北大核心
2020年第4期26-31,共6页
Journal of Mechanical Transmission
基金
国家自然科学基金(51105283)。
关键词
变速箱
模态
加强筋
多体动力学
轻量化
Gearbox
Modal analysis
Stiffener
Multi-body dynamics
Light weight
