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Unified approach to teaching uncertainty across a three-course mechanical engineering laboratory sequence

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Conference

2022 ASEE Annual Conference & Exposition

Location

Minneapolis, MN

Publication Date

August 23, 2022

Start Date

June 26, 2022

End Date

June 29, 2022

Conference Session

Mechanical Engineering: Design and Labs

Page Count

9

DOI

10.18260/1-2--40666

Permanent URL

https://peer.asee.org/40666

Download Count

249

Paper Authors

biography

Maria-isabel Carnasciali University of New Haven

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Maria-Isabel is currently an Assistant Provost and professor of Mechanical Engineering at the University of New Haven. She teaches courses related to thermo-fluid systems – including Engineering Thermodynamics, Fluid Mechanics, Thermo/Fluids Laboratory, and Applied CFD. In addition to her education research and assessment related work, she involves graduate and undergraduate students in her technical research spanning validation of CFD models for aerospace and renewable energy applications as well as optimizing efficiency of thermal-fluid systems. In her free time, she is likely out sailing!

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biography

Eric Dieckman University of New Haven

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I am an Assistant Professor of Mechanical Engineering and coordinator of both the BSME and interdisciplinary Ph.D. in Engineering and Applied Science programs at the University of New Haven. My current research focus is on the intersection of high-performance numerical simulations of wave propagation and scattering, time-frequency wavelet signal processing, and ML approaches to find useful information hidden inside complex RF and acoustic signals. Some recent projects include micro-Doppler classification of drones and quadcopters using small and low-cost radar systems, discovery, and classification of Internet of Things (IoT) devices using Software Defined Radios (SDRs), and development of multiple ultrasonic guided-wave simulation tools and methods for Additively Manufactured Metals.

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Ismail Orabi University of New Haven

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Samuel Daniels University of New Haven

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Abstract

The ability to analyze and make sense of large volumes of experimental data is critical to prepare engineering graduates for the modern workplace. While a number of students take an elective statistics course, students' main exposure to data analysis in our mechanical engineering undergraduate program comes from a three course in-major laboratory sequence. These courses each target different technical content while emphasizing common skills, including writing (technical memos, lab reports, design reports), formal presentations (oral and poster), and statistical analysis techniques to quantify uncertainty in measured data.

The first laboratory (sophomore year) targets instrumentation and measurement techniques and introduces the concept of bias and precision uncertainty. The second laboratory (junior year) focuses on experiments related to the mechanics of materials and structures and introduces the concept of error propagation. The third laboratory (senior year) includes experiments related to thermo-fluids and heat transfer and is the culmination of experimental uncertainty analysis in preparation for students' capstone design projects. All three labs heavily emphasize digital data acquisition so students are able to apply the learned analysis techniques on large amounts of real-world data.

This paper details the framework of the uncertainty analysis across the 3-course sequence. Impacts are examined through data collected from the students in each lab. Observations and lessons learned are being used to inform further changes in content and lab-to-lab knowledge recall.

Carnasciali, M., & Dieckman, E., & Orabi, I., & Daniels, S. (2022, August), Unified approach to teaching uncertainty across a three-course mechanical engineering laboratory sequence Paper presented at 2022 ASEE Annual Conference & Exposition, Minneapolis, MN. 10.18260/1-2--40666

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