University of Illinois at Chicago Mechanical Vibrations Lab Report

  

In a one-minute video, present an analysis of a real-life forced “arbitrary” 1-DOF vibration
(due to a step forcing function) of a structure via experiment and theoretical calculations

Project 11 (Video) [21 FP “Fluency Points”]: “Arbitrary Excitation”
In a one-minute video, present an analysis of a real-life forced “arbitrary” 1-DOF vibration
(due to a step forcing function) of a structure via experiment and theoretical calculations
Description:
In a video that lasts no longer than 60 seconds:
•
Identify or design a 1-DOF forced vibration of a structure in or around your house,
where the external excitation is a step function that looks like:
•
Explain the phenomenon and the vibration behavior by:
â—¦ Conducting a simple experiment to capture the motion of the vibrating structure,
and graphing the observed vibration in a displacement vs time plot; and:
â—¦ Performing a theoretical analysis and visualizing the solution in a displacment vs
time plot, by using the “arbitrary” nonharmonic excitation theory.
•
Make concluding remarks that may include a comparison of the experimental and
analytical results, sources of error, validity of your assumptions, etc.
•
Also reflect on your journey of making the video and what you’ve learned.
Rules:
•
•
•
•
•
•
Tips:
•
•
•
•
Video must be in landscape mode
Video must be less than 60 seconds long
Must show your face
Must voice narrate your explanation
Video must be uploaded to YouTube
Individual work
Make it fun yet educational
Shoot plenty of raw footage, then edit using a free software
Speak close to the mic
Make your YouTube video “unlisted”
•
•
Test YouTube link before submitting on Gradescope
See below for how to upload videos to YouTube and how to submit URL in Gradescope
Requirements:
Submit your Youtube URL on Gradescope only. Submissions by email or other means will be
disregarded.
Due Nov 22, 2020 (Sunday) 11:59 pm.
Late submission: 50% FP lost every 24 hours of lateness (unless accommodated).
Grading Rubric:
Wow Factors
3
Scaling
Max
Possible
2
1
0
Truly original effort;
Creativity,
compelling
Originality &
storytelling; insightful
Thoughtfulness
conclusions &
reflections
Substantial
Some
evidence
Missing
2
6
Accurately depicts
the vibration type;
Experimental
detailed information
Setup & Realism on how the observed
data is collected and
plotted
Acceptable
with some
missing
details
Farfetched, or
missing much
details
Missing
2
6
Sketches,
assumptions, and
equations reflect
sound physics;
calculations and
plots are clearly
explained
Generally
correct with
some details
missing
Incorrect
physics, or
missing most
details
Missing
2
6
Stunning visuals,
clear audio, and
smooth editing
Generally
acceptable
quality with
some some
issues
Can’t make out
most visuals,
barely audible,
choppy or
incongruent
editing
Missing
1
3
Total
21
Theoretical
Rigor
Production
Quality
How to Upload Your Video to YouTube
1. Sign in to your YouTube account (using your UIC credentials).
2. Go to “YouTube Studio”:
3. Upload Videos:
4. Enter your video title, description, and make sure you select “Unlisted” as publishing type.
How to Upload Your YouTube URL to Gradescope
1. Log in to Gradescope.
2. Select the project:
3. Follow the instructions there. Nice and easy!

Purchase answer to see full
attachment