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An investigation of mechanical engineering experimental design processes.

机译：机械工程实验设计过程的调查。

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摘要

Design of experiments is an important aspect of engineering, yet little research has been done in the area. It is important to understand the experimental design process steps that students think important because designing experiments is a valuable skill to industry. In this work, freshman, junior and senior mechanical engineering and the IAB were surveyed to document their cognitive understanding of experimental design process steps. The results show that mechanical engineering students use less design process steps than the IAB members. This indicates a need to improve the understanding of experimental design for the students to be better prepared to enter industry. In addition, the students were given an open-ended engineering problem in their laboratory course. This problem required them to design, construct, and conduct an experiment to determine the relationships between factors that affect the forces on a wooden beam that supports the weight of a person. The student attitudes towards this experience were surveyed through Likert scale questions. The seniors were the only student group who were not frustrated with the open-ended engineering design problem. This indicates a need to introduce experimental design projects earlier in the engineering curriculum.

机译：实验设计是工程学的重要方面，但该领域的研究很少。重要的是要理解学生认为重要的实验设计过程步骤，因为设计实验对工业来说是一项宝贵的技能。在这项工作中，对新生，初中和高级机械工程以及IAB进行了调查，以记录他们对实验设计过程步骤的认知理解。结果表明，与IAB成员相比，机械工程专业的学生使用的设计过程步骤更少。这表明需要提高对实验设计的理解，以便学生为进入行业做好更好的准备。此外，学生在实验室课程中遇到了开放式工程问题。这个问题要求他们设计，构造和进行实验，以确定影响支撑人的体重的木梁上的力的因素之间的关系。通过李克特量表问题对学生对这种经历的态度进行了调查。年长者是唯一对开放式工程设计问题不感到沮丧的学生团体。这表明有必要在工程课程的早期引入实验设计项目。

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作者
Fralick, Bethany Suzanne.;
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作者单位

University of South Carolina.;

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授予单位 University of South Carolina.;
学科 Engineering Mechanical.;Education Curriculum and Instruction.
学位 M.S.
年度 2009
页码 54 p.
总页数 54
原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;教育;
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An investigation of mechanical engineering experimental design processes.

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