getting a “feel” for dynamic systems
DESCRIPTION
Jenna L. Toennies, D. Caleb Rucker, Robert J. Webster III M edical and E lectromechanical D esign Lab Vanderbilt University. Getting a “Feel” for Dynamic Systems. Context. Course: Mechanical Engineering - System Dynamics Students: Juniors Challenges to Teaching: - PowerPoint PPT PresentationTRANSCRIPT
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Jenna L. Toennies, D. Caleb Rucker, Robert J. Webster III Medical and Electromechanical Design Lab
Vanderbilt University
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Course: Mechanical Engineering - System Dynamics Students: Juniors Challenges to Teaching:
• Concepts are difficult to grasp without interaction with a real system illustrating the topic.
• Limited lab time and resources make thorough illustration challenging because each concept is best demonstrated by a different physical system.
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Method Project-based lab
curriculum Use of all purpose, hands on
simulators Goal
Increase intuitive understanding of fundamental concepts in System Dynamics
F=ma???
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A joystick that simulates a desired dynamic system and provides students with tactile feedback.
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During Construction The students determine the dynamic characteristics of
the paddles, the motors, and the sensors.
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During Programming The students alter the dynamics through feedback
to simulate different physical systems.
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During Simulation The students feel the
response of simulated systems with their hands.
This enhances their intuitive understanding of the dynamic concepts.
“Using the haptic paddle in lab, I was able to see and feel a variety of system responses, which added meaning to the numbers and equations that I calculated in class.” -Vanderbilt System Dynamics Student, Fall 2008
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• Developed 5 multiple-choice questions for each of the 5 lab sessions to address the conceptual learning objectives for each lab.
• Administered 25 questions at the beginning of the semester to assess the students’ initial understanding.
• In each lab, the students took the relevant 5 questions at these different times depending on their section:
•Beginning of lab•After a pre-lab lecture•After lab•After completing the lab report (1+ week later)
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Dr. Tom Harris
Dr. Derek Bruff and Jean Alley
The entire Vanderbilt University and extended CIRTL Network
Advisor: Dr. Robert J. Webster III