案例教学法在有限元分析课程的探索与实践

Exploration and practice of adopting case method teaching in the finite element analysis curriculum

目的有限元分析课程是一门理论和实践并重的课程,旨在提高学生的实操能力和解决问题的能力。医学相关专业学生的数理基础相对薄弱,为此,教研组将案例教学法引入有限元分析课程的教学,以提高教学效果。方法教研组结合教学大纲、学生的专业特点及作者的科研工作积累,建立了5个与医学问题相关的有限元分析教学案例、1个细胞生物力学教学案例及1个流固耦合教学案例,配备了包括几何模型建立、力学特性设置、载荷及边界条件的施加、结果分析等内容的分析流程及操作视频。然后,教研组将教学案例引入有限元分析课堂,教师组织学生对分析流程中的参数设置等进行讨论,并对案例进行总结。结果通过学生对自拟题目的有限元分析展示检验教学效果,结果表明学生能独立完成问题的有限元分析,可以对参数进行合理设置,并对结果进行查看和正确解读。结论有限元案例教学的实施,提高了学生的相关软件操作技能,加深了对有限元方法理论和参数设置的理解,使学生基本具备了通过有限元方法解决医学问题的能力,为后期的科研和临床工作奠定了一定的基础。

Objective The curriculum related to the finite element method(FEM)emphasizes both theory and practice to improve students’abilities of practical skills and solving problems.As foundations in mathematics and physics were not good for the medical graduate students,case method teaching was introduced to the FEM course to improve teaching effect.Methods Combining syllabus,students’majors and our research contents,the teaching cases were built including five cases of medical problems,one case of cell biomechanics and one case of fluid-structure coupling problem.Each case included analysis processes and corresponding videos.Then,teaching cases were applied to teaching processes,under the guidance of the teacher,class discussions were provoked.The teacher summarized the cases.Results Teaching effects were tested through finite element analysis of medical problems selected by students.The results showed that they could independently complete the finite element analysis and explain rationality of parameters and analysis results.Conclusions Teaching practices based on the teaching cases in curriculum related to the finite element analysis showed students improved skills of software operation,understood FEM basic theory and parameters setting,improved the capability to solve medical problems by FEM,which might be helpful for their scientific research and clinical work in further.