ASEE PEER - Storage and Interaction Diagrams: Extending the Diagrammatic Framework of Kinetic and Free-Body Diagrams to other Conservation and Accounting Principles
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Storage and Interaction Diagrams: Extending the Diagrammatic Framework of Kinetic and Free-Body Diagrams to other Conservation and Accounting Principles

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Conference

2024 ASEE Annual Conference & Exposition

Location

Portland, Oregon

Publication Date

June 23, 2024

Start Date

June 23, 2024

End Date

July 12, 2024

Conference Session

MECH - Technical Session 1: Foundations of Engineering Education

Tagged Division

Mechanical Engineering Division (MECH)

Permanent URL

https://peer.asee.org/47998

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Paper Authors

biography

Amir H. Danesh-Yazdi Rose-Hulman Institute of Technology

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Dr. Danesh-Yazdi is Associate Professor of Mechanical Engineering at Rose-Hulman Institute of Technology. His teaching and research interests include vibrations, heat transfer, and fluid mechanics. He is the co-author of two textbooks: Mechanical Vibrations: A State-Space Perspective (with Yi Wu) and Heat Conduction, 4th Edition (with Latif Jiji).

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Abstract

After defining a system for analysis, a rigorous process is taught to students in their Statics and Dynamics courses on how to draw proper kinetic, free-body, and impulse-momentum diagrams. While numerous techniques and mnemonics have been mentioned in literature, any experienced instructor can tell a correct free-body diagram apart from an incorrect one. Unfortunately, this is not the case when considering scalar properties such as mass, energy, exergy, and entropy. Different fluid mechanics and thermodynamics texts have treated the diagrammatic representation of these properties either very poorly, or in the case of the latter two, not at all. In this paper, the interaction diagram is introduced as a graphical tool to represent the aforementioned scalar properties. The interaction diagram combines the conservation and accounting of properties with the template of the kinetic, free-body, and impulse-momentum diagrams. Three examples are provided to show the application of this general diagrammatic approach to different types of problems that involve the change in multiple properties. The impact of incorporating interaction diagrams when introducing conservation and accounting principles involving scalar properties is assessed through the evaluation of student performance on exams and student feedback.

Danesh-Yazdi, A. H. (2024, June), Storage and Interaction Diagrams: Extending the Diagrammatic Framework of Kinetic and Free-Body Diagrams to other Conservation and Accounting Principles Paper presented at 2024 ASEE Annual Conference & Exposition, Portland, Oregon. https://peer.asee.org/47998

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