当前位置：首页 > 过刊浏览->2025年46卷第6期
基于有限元法的铸造温度场/应力场仿真 工业软件自主开发
Numerical Simulation of Casting Temperature and Stress Fields via the Finite Element Method
浏览(52) 下载(0)
- DOI:
- 作者:
- 黄健豪1，廖敦明1，陈宇豪1，张祎祺1，赵拴明1，王一凡1，马正强2，林 平2
HUANGJianhao1, LIAO Dunming1, CHEN Yuhao1, ZHANG Yiqi1, ZHAO Shuanming1, WANGYifan1, MAZhengqiang2,
- 作者单位:
- 1. 华中科技大学材料科学与工程学院，湖北武汉430074；2. 二重(德阳)重型装备有限公司，四川德阳618013
1. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; 2. Erzhong (Deyang) Heavy Equipment Co., Ltd., Deyang 618013, China
- 关键词:
- 温度场；应力场；有限元法；数值模拟
temperature field; stress field; finite element method; numerical simulation
- 摘要:
- 针对工业软件自立自强的国家战略需求，为给铸造工艺优化提供可靠的数值分析工具，提出一种基于统一 网格的热-力单向耦合算法，自主开发专用于铸造过程的温度场/应力场有限元仿真软件。 通过阶梯试块空冷温度场仿 真，与ANSYS计算结果对比结果表明，最大相对误差为0.789%，且整体降温趋势一致，验证了温度场模块准确性较高。 针对栅形应力框架开展数值模拟，通过研究应力框架在凝固过程中的变形情况、应力应变分布和热裂倾向，证明 了热-力耦合算法、铸件力学边界模型的正确性和可靠性。通过燃烧室壳体铸件案例，预测可能出现的热裂缺陷，并与实 际铸造产品进行对比分析，证明自主开发软件的工程实用性，能够为实际大型铸造过程提供优化依据。To address the national strategic demand for self-reliant industrial software, a unified-mesh-based one-way thermomechanical coupling algorithm was proposed, and dedicated finite element simulation software for casting temperature-stress analysis was independently developed, providing a reliable numerical tool for process optimization. Through air-cooling simulations of a stepped test block, comparative results with ANSYS demonstrate a maximum relative error of 0.789% with consistent cooling trends, validating the high accuracy of the temperature module. Numerical simulation of a grid-shaped stress framework reveals deformation behavior, stress-strain distributions, and hot tearing tendencies during solidification, confirming the correctness of the thermomechanical coupling algorithm and mechanical boundary model. For a combustion chamber shell casting case, the predicted hot tearing defects match actual cast products, confirming the software's industrial applicability for optimizing practical large-scale casting processes.