Transcript Technical Proposal Presentation.pptx

James Cain
9/12/14
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In 1974, NCAA implemented the use of metal
bats to save money
◦ The number of homeruns per game drastically increased
◦ Higher rate of injury to pitchers attributed to higher ball
exit velocity off of an metal bat
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Due to higher rate of injuries, NCAA instituted
stricter ball-bat coefficient of restitution (BBCOR)
to make metal bat performance similar to that of
a wood bat
Goal of project is to compare bat performance of
wood, metal, and metal BBCOR baseball bats
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Model a baseball and baseball bats in
Abaqus/CAE
Perform a dynamic analysis on the bat-ball
interaction in Abaqus/Explicit
Modify models with different physical
properties such as material, mass, and size
Compare the analytical results of the bat
performance to experimental data
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Create three-dimensional models of a baseball
and wood and aluminum baseball bats using
Abaqus/CAE
Create a finite element model (FEM) and analyze
the dynamic nature of the bat-ball interaction
using Abaqus/Explicit
◦ Apply appropriate boundary conditions, contact, and
constraints
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Run and repeat analysis with both coarser and
finer meshes to determine the adequacy of the
mesh
Re-run analysis using different bat physical
properties
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Become proficient in the use of FEA, specifically in
Abaqus/CAE and Abaqus/Explicit
Gain a better understanding of the bat-ball
interaction and bat performance of different
material bats
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Milestones
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Research experimental data on wood and metal baseball bat performances
Research material properties for wood and metal bats and baseballs
Create FEM to show contact between baseball and bat
Run FEM to determine effects of different variables and process results
Deadlines
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Tentative Project Proposal Draft
Project Proposal
First Progress Report
Second Progress Report
Final Draft
Preliminary Final Report
Final Report
September 5, 2014
September 12, 2014
September 26, 2014
October 17, 2014
November 7, 2014
November 28, 2014
December 12, 2014