摘要
基于有限元数值模拟技术和人机交互界面程序开发所构建的虚拟仿真教学平台,可以免去学生对有限元理论和软件的学习掌握,同时,学生面对友好的交互界面可自主研究基础理论问题,以及培养创新研究能力。文中结合塑性力学理论和实验教学内容建立了棒材拉伸、板材拉伸和圆柱体压缩3种材料力学基本性能试验过程试样变形虚拟仿真平台,并将尺寸、变形、材料、网格模型等参数设计为可变量,以协助学生研究关键因素对材料拉伸和压缩过程变形规律及力学特征影响机理,对课堂教学质量和学生科研素养培养具有显著提升效果,也为“两性一度”标准下的一流课程建设提供了解决方案。
The virtual-simulation teaching platform which is developed based on the finite-element numerical simulation and the human-machine interface system saves students the trouble to master the finite-element theories and software.Furthermore,students can explore the basic theories independently with the help of the user-friendly interface,in order to sharpen their skill of innovative research.In this article,in combination with the theory of plastic mechanics and the experiment,efforts are made to develop a virtual-simulation platform for specimen deformation in the experimental process of three basic mechanical properties of materials:bar tension,plate tension and cylinder compression.The parameters such as size,deformation,material,and grid model are designed as the variables to assist students in exploring the influence of key factors on the deformation law and mechanical characteristics of material tension and compression.This study greatly helps to improve the quality of teaching and develop the students' literacy in scientific research.Also,it provides a solution for the construction of first-class courses with the standard of high level,innovation and challenge.
作者
梅瑞斌
包立
张欣
MEI Ruibin;BAO Li;ZHANG Xin(State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819;School of Resources and Materials,Northeastern University at Qinhuangdao,Qinhuangdao 066004)
出处
《机械设计》
CSCD
北大核心
2023年第9期135-141,共7页
Journal of Machine Design
基金
河北省高等教育教学改革研究项目(2022GJJG427)
河北省精品课程建设项目(2020JPKC061)
东北大学“三全育人”改革综合项目(NEU-SQYR-202106)
东北大学秦皇岛分校重点教改项目(2021JG-A03,2022JG-B11)。
关键词
“两性一度”
拉伸和压缩
有限元
虚拟仿真
研究型
high level,innovation and challenge
tension and compression
finite-element method
virtual simulation
research-oriented
