Abstract:

Engineering students need to learn how to formulate mathematical models of physical situations, how to obtain useful solutions to the model equations, and how to correctly interpret and present the results. We want to introduce our engineering students to problem-solving with modern engineering tools, such as LabVIEW, applied to more realistic problems. The place, amount and type of computing in the undergraduate engineering curriculum are ongoing matters of interest. It is essential that students should not lose sight of the physical phenomena being modeled, the assumptions behind the mathematical models used, or the need to verify and validate the computational methods applied to the problem. Similar concerns have been raised regarding the use of process simulation software to carry out signal processing systems, and successful implementation of these advanced computer tools may require a re-focusing of course objectives and skills taught, and a re-structuring of the course curriculum. The course on advanced calculus level undergraduate try to show industrial applications and in this case we focus on motor induction functioning. This paper shows the interest focused only on signal analysis, rather than technical data acquisition particularly in fault detection by broken bars in squirrel cage induction motor and the task of signal analysis and subsequent diagnosis, leaving aside the proper signal acquisition implemented using LabVIEW software platform, based method applying the Fourier Transform for spectral analysis of the feed stream. Since our interest is focused and considering choosing LabVIEW as a deployment platform is intentional because it facilitates the acquisition and signal conditioning, the tests were carried out with signals stored provided by Massey Technical Service Laboratory.
The project development in a teaching process is to work in a multidisciplinary form like at the professional work, in this way the teachers look forward themes of students' interest. In this case simulated online condition-based maintenance strategies are presented. Motor current signature analysis (MCSA) is the online analysis to detect faults in a three-phase induction motor drive while it is still operational and in service so that the students performed this method in order to be able to monitor lot of faults on diagnosis induction motors in a virtual laboratory. LabVIEW allows the implementation to be user friendly and facilitates the collection, processing, data storage and the ability to generate reports and statistics in a simple way.
This methodology allows students to increase their abilities because there is an articulation of the content of mathematics that favors the interdisciplinary perspective using and discovering mathematical concepts through the proposal of real-life situations. It emphasizes the methodological change versus the traditional teaching acquiring a heuristic shed that highlights the epistemology of the mathematics and recasts them processes of evaluation.

Keywords:

Multidisciplinary problems, undergraduate education, virtual instruments, signal processing.