大型轨梁粗轧BD1轧机主传动系统扭振特性研究  

Research on torsional vibration characteristics of the main drive system of BD1 for large rail beam rolling mill

作　　者：刘益民[1] 王定勇 李红 LIU Yi-min;WANG Ding-yong;LI Hong(Angang Heavy Machinery Co.,Ltd.,Anshan 114031,China;Rail and Beam Plant of Panzhihua Steel and Vanadium Co.,Ltd.,Panzhihua 617000,China;Angang Heavy Machinery Design and Research Institute,Anshan 114031,China)

机构地区：[1]鞍钢重型机械有限责任公司,辽宁鞍山114031 [2]攀钢钒轨梁厂,四川攀枝花617000 [3]鞍钢重型机械设计研究院,辽宁鞍山114031

出　　处：《重型机械》2022年第3期61-67,72,共8页Heavy Machinery

摘　　要：基于动力学模型与有限元法对轨梁轧机主传动系统进行扭振特性分析,求解系统扭振固有频率和主振型。对系统关键参数等效与转化,建立分支式与直串式动力学模型。利用Ansys Workbench求解系统固有频率和主振型,通过有效质量占比选取扭振方向上关键模态阶数。结果表明:分支式与直串式表征结果一致,且与有限元结果一一对应。有限元结果包含主传动系统整体和局部模态,涵盖了大量扭振信息。研究为轧机优化设计、揭示轧机动态特性提供理论参考。The torsional vibration of the main drive system of the rail and beam rolling mill are analyzed based on the dynamic model and finite element,and the natural frequency and main vibration mode of the system are solved.Branch-and-string dynamics models are developed by equating and transforming the key parameters of the system.ANSYS Workbench is used to solve the system for the intrinsic frequency and principal vibration pattern,and the key mode order in the torsional direction is selected by the effective mass occupation ratio.The results show that the branching and straight string characterization results agree with each other and correspond to the finite element results.The finite element results contain the overall and local modalities of the main drive system and cover a large amount of torsional vibration information.The paper provides theoretical reference for optimizing design of rolling mill and revealing the dynamic characteristics of rolling mill.

关 键 词：轨梁轧机 扭振特性 动力学模型 有限元分析 

分 类 号：TG335[金属学及工艺—金属压力加工]