Evaluation of a Natural Sketch Interface for Truss FBDs and Analysis
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Mechanix is a sketch recognition tool that provides an efficient means for engineering students to learn how to draw truss free-body diagrams (FBDs) and solve truss problems. The system allows students to sketch these FBDs into a tablet computer or by using a mouse just as they would by hand, a mouse can also be used to draw the sketch using a regular computer and monitor. Mechanix is then able to provide immediate feedback to the students and tell them if they are missing any components of the FBD, without providing answers. The program is also able to tell them whether their solved reaction or member forces are correct or not. This paper presents a study to evaluate the effectiveness and advantages of using Mechanix in the classroom, as a supplement to traditional teaching and learning methods. Current results demonstrate that students believe Mechanix enhances their learning and are highly engaged when using it. Future work on the refinement of the program is also discussed. © 2011 IEEE.
author list (cited authors)
Atilola, O., Field, M., McTigue, E., Hammond, T., & Linsey, J.