摘要
使用现有的商用有限元软件对型材拉弯工艺过程进行有限元模拟,容易出现有限元建模效率低、有限元模型不合理和对工程技术人员要求高等问题。针对以上问题,研究了型材拉弯的有限元模拟,分析其中的拉弯方式、几何建模、材料模型、边界条件设置、夹钳轨迹计算和求解算法。然后对有限元软件ANSYS Workbench的几何建模模块和仿真模块进行二次开发,嵌入对应的操作模板,快速实现型材拉弯有限元模拟的几何模型建模和前处理工作,并且利用开发的型材有限元建模模块对具体实例进行了仿真模拟。结果表明开发的模块可以快速、高效地完成型材拉弯的有限元模拟,并且模拟结果具有一定的参考价值。
The finite element simulation of the profile bending process is carried out using the existing commercial finite element software,which is prone to problems such as low efficiency of finite element modeling,unreasonable finite element model and high requirements for engineers and technicians.In view of the above problems,this paper studies the finite element simulation of profile bending and analyzes the bending method,geometric modeling,material model,boundary condition setting,clamp trajectory calculation and solving algorithm.Based on the previous research,the geometric modeling module and simulation module of the finite element software ANSYS Workbench were redeveloped,and the corresponding operation template was embedded to realize the geometric model modeling and pre-processing of the finite element simulation of the profile bending.For the specific example,the simulation of the profile finite element modeling module was carried out.The results show that the module developed in this paper can quickly and efficiently complete the finite element simulation of profile bending,and the simulation results are worth to reference.
作者
韩志仁
罗雪磊
HAN Zhiren;LUO Xuelei(College of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process,Shenyang Aerospace University,Shenyang 110136,China)
出处
《航空制造技术》
2020年第13期64-68,共5页
Aeronautical Manufacturing Technology
基金
航空科学基金(2018ZE54028)。
