the road to the perfect moi [ the life and times of my composite bat ] by trong nguyen teams academy...
Post on 20-Dec-2015
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![Page 1: The Road to the Perfect MOI [ the life and times of my composite bat ] By Trong Nguyen TEAMS Academy Baseball Bat Engineering](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649d445503460f94a2181f/html5/thumbnails/1.jpg)
The Road to the Perfect MOI[the life and times of my composite bat]
By Trong Nguyen TEAMS Academy Baseball Bat Engineering
![Page 2: The Road to the Perfect MOI [ the life and times of my composite bat ] By Trong Nguyen TEAMS Academy Baseball Bat Engineering](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649d445503460f94a2181f/html5/thumbnails/2.jpg)
Table of Contents
Design Requirements Design Alternatives Final Design Prototype Problems/Errors In the End Final Project
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Design Requirements
MOI: 5100 Mass: Light Center of Mass: close to the barrel Length:28.5- 31.5 inches Braiding: 4-8 braid layers and 30°-65° angles End-cap:2-5 ounces Knob:0.5-2 ounces
![Page 4: The Road to the Perfect MOI [ the life and times of my composite bat ] By Trong Nguyen TEAMS Academy Baseball Bat Engineering](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649d445503460f94a2181f/html5/thumbnails/4.jpg)
Design Alternatives
1. Using Model to adjust the amount of end-cap and knob.
2. Max out stats then use model to cut off parts of bat to get desired MOI.
![Page 5: The Road to the Perfect MOI [ the life and times of my composite bat ] By Trong Nguyen TEAMS Academy Baseball Bat Engineering](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649d445503460f94a2181f/html5/thumbnails/5.jpg)
Use the Model!
0
2000
4000
6000
8000
10000
Method 1 Method 2 (not a very
smart choice,my friends)
MOI
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Final Design
Length: 30.5 inches Weight: 24 ounces Braid Layers: 8 Layers Barrel Braid Angle: 60° Handle Braid Angle: 32° End-cap: 2 ounces Knob: 2 ounces
![Page 7: The Road to the Perfect MOI [ the life and times of my composite bat ] By Trong Nguyen TEAMS Academy Baseball Bat Engineering](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649d445503460f94a2181f/html5/thumbnails/7.jpg)
Prototype
Length: 30.75 inches Weight: 23.80 ounces Braid Layers: 8 Average Handle Angle: 31.875° Average Barrel Angle: 58.75° End-cap:1.96 ounces Knob: 1.94 ounces
![Page 8: The Road to the Perfect MOI [ the life and times of my composite bat ] By Trong Nguyen TEAMS Academy Baseball Bat Engineering](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649d445503460f94a2181f/html5/thumbnails/8.jpg)
![Page 9: The Road to the Perfect MOI [ the life and times of my composite bat ] By Trong Nguyen TEAMS Academy Baseball Bat Engineering](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649d445503460f94a2181f/html5/thumbnails/9.jpg)
Problems/Errors
Prediction of shell weight slightly off (no biggie). Added extra 2 oz accidentally (big biggie). Had
to “Harpoon” the 2 oz. out (thanks Scott).
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In the End
MOI was GREAT! Weight was NOT
GREAT!
Target Actual Percent Error
MOI 5100 5017 1.627%
Weight 24 oz 23.80 0.833%
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Research Project
Goal: Investigate the MOI measurement error through experimentation
How we did it: Find MOI of three different bats (Thinh, Annelise, Linda) and look at percent error
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Thinh
Thinh’s Bat Average Percent Error
Length 0.11%
Weight 0.008%
Center of Mass 0.36%
Period of Oscillation 0.42%
MOI@6 1.36%
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Linda
Linda’s Bat Average Percent Error
Length 0.19%
Weight 0.001%
Center of Mass 0.24%
Period of Oscillation 0.67%
MOI@6 1.35%
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Annelise
Annelise’s Bat Average Percent Error
Length 0.20%
Weight 0.01%
Center of Mass 1.01%
Percent of Oscillation 0.58%
MOI@6 0.33%
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Conclusion
The Period of Oscillation consistently has the highest rate of error of all measurements in finding MOI.
It is because of human error.
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Thank you!
To Dr. Jumper, Mr. Doherty, Mr. Drain, Konstantine, and everyone who helped me make my bat.
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