摘要
万吨级航空铝合金张力拉伸机是我国新研制的具有世界先进水平的铝合金板材精整设备。针对该拉伸机的结构形式及特点,对拉伸过程中力的传递进行计算,建立拉伸机关键零部件—固定机头和活动机头有限元分析模型,对拉伸过程中关键零件进行有限元分析。结果表明,拉伸机关键零部件—固定机头和活动机头的强度和刚度满足要求,最大应力小于100MPa;压套始终处于压缩状态,机架稳定性好,证明采用组合式结构的拉伸机设计合理。通过现场测试验证了有限元分析结果,证明有限元分析模型的正确性。
Ten thousand DWT aeronautic aluminum alloy stretcher,which was designed and manufactured in China,is international advanced alloy plate finishing equipment.Based on structural form and characteristics of the stretcher,the load was calculated.The finite element models of important parts—fixed assembly and movable assembly were created and studied.Result shows the important parts—fixed assembly and movable assembly of stretcher meets the requirements of strength and stiffness.The maximum stress is lower than 100MPa.Sleeves are pressed during stretching to ensure stability of stretcher.Assembled structure for this stretcher is rational.Finally,field tests verify results of analysis and prove the finite element models are right.
出处
《机械设计与制造》
北大核心
2013年第6期112-115,共4页
Machinery Design & Manufacture
基金
国家科技特派计划项目(2009GJF10028)
