Virtual On line
June 22, 2020
June 22, 2020
June 26, 2021
Electromechanical system course offered at XXX focuses on modeling mechanical & electrical dynamic systems. It is a 4 credit course with a 3 hour lecture and a 2 hour lab each week. The objective of this course is to model and analyze the dynamic behavior of electromechanical system. Software application programs are used to facilitate how electromechanical systems are analyzed, simulated and designed. In the past, the cantilever beam experiment was highly simulation based. Students used MATLAB and Simulink, SimScape Multibody to obtain the system performance. Most of the simulations represented ideal cases, students are lack of connection with the simulated system and the real system. In order to expose students to real dynamic systems, some physical lab experiments are needed.
This paper describes the experimental design of a cantilever beam system, which illustrates two different cases: free vibration and vibration due to rotating unbalance. Those concepts were taught in lecture and were reinforced with the experiments. For a series of two experiments, students analyzed the real beam system by characterizing the damping coefficient of the beam. They observed the frequency changes of the beam with various loads added. Students also observed resonant frequency of the beam due to unbalanced rotation. At the end, the experimental results were compared to the theoretical results. They provided positive feedback for the newly developed experiments. These labs helped them understand the course concepts better.
Ma, G. G., & Dasgupta, S., & Duva, A. W. (2020, June), Cantilever Beam Experiment Paper presented at 2020 ASEE Virtual Annual Conference Content Access, Virtual On line . 10.18260/1-2--34258
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