&nbsp;Undergraduate mechanical engineering students struggle in comprehending the fundamentals presented in an introductory level mechanical vibrations course which eventually affects their performance in the posterior courses such as control theory. One salient factor to this is missing the visualization of the concept with hands-on learning since the vibrations and control laboratory course is offered in the following semester.&nbsp; Doing by learning has a strong impact in comprehending the abstract topics however mechanical engineering students need to wait for another semester for the vibrations and control theory laboratory course.&nbsp;This study presents the design, development of three portable and 3D-printed compliant vibratory mechanisms actuated by a linear motor and their implementation in vibrations course and vibrations and control laboratory. The proposed setups consist of flexible and compliant springs, sliders, and base support. Mechanisms are utilized to demonstrate free and forced vibrations, resonation, and design of a passive isolator. In addition to the 3D-printed, portable lab equipment, we created the Matlab Simscape GUI program of each setup so instructors can demonstrate the fundamentals in the classroom, assign homework, project, in-class activity or design laboratory.&nbsp;For future considerations, laboratory equipment and Simscape GUI program will be provided to the junior and senior mechanical engineering students taking vibrations and vibrations and control theory courses and student feedback will be solicited to improve the current designs.

Designing and 3D Printing Lab Equipment for Mechanical Vibrations Course and Laboratory: Work in Progress

Paper Proceedings: https://asmedigitalcollection.asme.org/IDETC-CIE/IDETC-CIE2021/volume/85369

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