通用典型桁架结构管端切割数学模型及仿真  

Welding groove model and accuracy of processing technology of square tube

作　　者：任清川[1] 徐雷[1] 黄世游[1] 叶珍珍[1] 

机构地区：[1]四川大学制造科学与工程学院,成都610065

出　　处：《焊接学报》2013年第12期93-96,5-6,共4页Transactions of The China Welding Institution

基　　金：四川省科技支撑计划资助项目(2012ZZ0002);成都市科技支撑计划资助项目(09RKYB980ZF-033)

摘　　要：为提高桁架结构同类型部分切割的效率,以工程管桁结构为对象,整理出典型多体相贯结构进行参数化,在两管相贯相贯线数学模型的基础上详细推导出空间K形接头的计算模型,在此基础上,提出了可通用的典型多体相贯结构建模方法和步骤.该数学模型给出了实现各种典型多体相贯结构精确建模的方法,解决了传统模型处理贯通情况适应性差问题.通过实例仿真表明,模型计算精度高、通用性强、编程实现难度小,可用于桁架结构中多种典型多体相贯结构的建模.To improve the cutting efficiency of the same type in pipe trussed structure,the typical multi-body intersected structure were sorted out and parameterized,and its mathematical model was established.The mathematical model of space Ktype connector was derived in detail.On this basis,a generic accurate modeling method for the typical multi-body intersected structure was proposed.This modeling method can deal with the various multi-body intersected structure and solve the problem that the traditional model process through situation with poor adaptability.The simulation results showed that the model has high calculation accuracy,stronger versatility,and a lower difficulty in programming,then it can be used in a variety of typical multi-body trussed structure modeling.

关 键 词：切割 多体相贯 管桁 相贯线 贯通处理 

分 类 号：TG483[金属学及工艺—焊接]