摘要
介绍了铁道货车用冷弯中梁成型与普通冷弯型钢成型的不同之处,分析了冷弯中梁的设计难点及解决方案。给出了冷弯中梁的成型原理、成型道次分配及孔型尺寸的确定方法。建立了数学模型;并应用计算机辅助孔型设计计算了冷弯中梁各架次孔型尺寸;进行了孔型优化。对冷弯中梁辊式成型的轧辊结构进行了设计。
It introduces the forming difference of the ordinary cold-formed steel with cold-formed sill used railroad freight train. Analyzed designing difficulties and salution for the cold-formed sill,also gives the molding principle ,method of sortie assigns and groove size for the cold-formed sill. The mathematical model has established. The scheme using the computer-aided Roller pass design calculates each pass size of cold-formed sill and optimizes it. Moreover,the roller structure has designed which cold- formed sill takes shape.
出处
《机械设计与制造》
北大核心
2009年第8期122-124,共3页
Machinery Design & Manufacture
基金
河北省自然科学基金项目(F2007000643)
河北省攻关课题资助项目(05212106D)
关键词
冷弯型钢
冷弯中梁
轧辊
孔型优化
计算机辅助设计
Cold-formed steel
Cold-formed sill
Roller
Pass optimization
Computer--aided design
