Shoe Tread Analysis

For my final FEA report, I was to run an analysis on something of my choosing. Due to my desire for wanting to go into the shoe industry and run FEA studies to make shoes better, I felt that this was a perfect time to get my feet wet doing just that.

For this analysis, I looked at four different tread patterns and sought to learn which would deflect the least, which in my mind, meant that the shoe provided more grip when a basketball player was moving around on the court.

The report can either be viewed in the viewer below, or the link below the viewer can be clicked and you can download a copy of the report.

Through this attempt, I felt like I learned a lot. Initially, I thought that modeling the shoe tread and the forces that are present on them would be easy, however, that assumption was wrong. Determining how much force and how the force was applied turned out to be more difficult than I initially expected. Also, during the analysis, I tried to simplify the treads down so that I didn’t need to model as many. While this was effective in saving time, I am concerned that it has therefore invalidated the analysis. Further research and talking with industry professionals would be required to better understand if my analysis is valid or not.

Rod Spring Back Analysis

After wrapping a rod around a mandrel there will inevitably be some amount of spring back that happens. In this study, I sought to use FEA to predict the spring back of aluminum rods after they had been wrapped around a circular mandrel.

The report can either be viewed in the viewer below, or the link below the viewer can be clicked and you can download a copy of the report.

Centrifugal Clutch Study

For this analysis, I was asked to calculate the deflection of the arm of a centrifugal clutch based on angular rotation. To do so, I developed equations to calculate the deflection of the clutch as a function of the rotational speed.

Within the FEA model, parts of the clutch model were cut away to make the analysis simpler. Which parts were cutaway is shown on the first page of the report.

The report can either be viewed in the viewer below, or the link below the viewer can be clicked and you can download a copy of the report.

FEA Efficiency Study Regarding Large Deflections

For this report, I was asked to simulate a 3D printed PLA cantilever beam that is 150 mm long with a cross-section of 1mm x 10 mm. At the end of the beam, a transverse end load at a range of force magnitudes would be present. I was then to compare the predicted deflection to the linear and nonlinear FEA analysis. Below is the report that I wrote up after completing the analysis.

Mechanical System Design Applications and Learning About Finite Element Analysis

In my final semester of college, I am looking forward to taking a class that I have been excited about for over a year now. It is a class that goes further in-depth learning about mechanical system design, as can be inferred by the name, and also builds upon the knowledge of finite element analysis that we obtained in a previous class that is required at BYU. Over the course of the semester, we will write reports regarding the analysis that we perform and what is learned through doing it. This will culminate with a final project performed as we analyze something of our choosing. While I work on these and submit them, I will post them here to show examples of the work that I am able to do!

Design based on FEA reports

In a machine a recent company was developing, they had run into an issue where a seeming “ghost force” was breaking a part that moved a pin. They weren’t sure what the magnitude of this force was so I performed some finite element analysis to determine a range in which the magnitude of force might exist. After that, more analyses were run to determine a design that would strengthen the part while maintaining function and making it more suitable to be manufactured using injection molding.

This piece was then created after taking the design needs into account. The area around the long slot was thickened to ensure a greater strength and the entire part was designed to ensure a constant wall thickness. After seeing the design for this part, I was asked to redesign the sister part as well.

This piece focused on maintaining function and designing to be manufactured by injection molding. When the parts are connected via a hex bar, it looks like this: