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Online Design Portfolio Wabtec

Introduction to Engineering 100

Section 07

Submitted by: Grace Hageman

Submitted to: Xinli Wu, Ph.D., P.E. .

Date Submitted: April 26, 2019

http://www.gracehageman.com

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Abstract

This online portfolio includes the assignments complemented in the Introduction to Engineering 100 course. This encompasses the author’s resume, engineering drawing activities, Solidwork projects, as well as a design report of a foldable shopping cart along with a design report for an electrical powered train.

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Table of Contents Cover Page ............................................................................................................. i Abstract.................................................................................................................. ii Table of Contents .................................................................................................. iii Resume ................................................................................................................... 1 Course Syllabus ..................................................................................................... 2 Practice Problems and Exercises ........................................................................... 7 CAD Project........................................................................................................... 9

Project Description ..................................................................................................... 9 Image of 3D Solid model......................................................................................... 10 Assembly Drawing ................................................................................................... 11 Detail Drawings ....................................................................................................... 12

3D Printing Project .............................................................................................. 15 Relative Design Drawing......................................................................................... 16 Images of 3D ............................................................................................................ 16

Main Desing Features……………………………………………………...……16

First Desing Project ..…………………………………………………………………….17

Project Description. .................................................................................................. 17

Image of 3D Model .................................................................................................. 18 Assembly Drawing ................................................................................................... 19 Detail Drawings ....................................................................................................... 20

Main Design Features…………………………………………………………..22

Second Design Project……………………………………………………………………23

Project Description ……………………………….………………………..23

Image of 3D Solid Model ……….…………………………………………28

Assembly Drawing…………………………………..……………………..29

Detail Drawings……………………………………………………………30

Main Design Features………………………………………………………32

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Summary ……………………………………...……………………………………………33

Acknowledgement…..........................................................................……………….33

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Resume

FIG. 1. Resume

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Course Syllabus

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FIG. 2. Course Syllabus

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Practice Problems, Exercises, Homework

FIG. 3. Isometric Drawing

FIG. 4. Drawing

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FIG. 5. Drawing

FIG. 6. Multi-view Drawings

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CAD Project

FIG. 7. Project Description Page

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FIG. 8. Image of 3D Solid Model

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FIG. 9. Assembly Drawing

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FIG. 10. Detail Drawing of Cylinder Attachment

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FIG. 11. Detail Drawing of Side Slab Base

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FIG. 12. Detail Drawing of Horizontal Slab Base

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3D Printing Project

FIG. 13. 3D Solid Model of Toothpaste Squeezer

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FIG. 14. Drawing of Toothpaste Squeezer

Main Design Feature

The main design feature of the toothpaste squeezer is the elevated rectangular prism at the top of the squeezer. This allows for the user to be able to easily push the device from the top instead of struggling to get a grip to pull it. This feature is unlike any other on a toothpaste squeezer on the market.

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First Design Project

FIG. 15. Project Description

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FIG. 16. 3D Solid Image

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FIG. 17. Foldable Shopping Cart Assembly Drawing

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FIG. 18. Detail Drawing of Frame Under Cart

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FIG. 19. Detail Drawing of Handle on the Cart

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FIG. 20. Detail Drawing of Container for Handle

Main Design Features The design has a sturdy handle that folds down onto to the collapse

rubber and plastic material of the cart. This handle has a hinge that holds it into place when brought up from its folded position to be used to pull the cart. The design is made from lightweight material of rubber and plastic and due to this, the cart weighs very little and will not add extra weight when groceries are added. The design is also simple so that it can be used by a range of ages, athletic ability, and gender.

For the detailed report, please click here

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Second Design Project

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FIG. 21. Project Description

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FIG. 22. Image of 3D Solid Model

FIG. 23. Image of 3D Solidworks Model

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FIG. 24. Assembly Drawing

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FIG. 25. Detail Drawing of Cooling Apparatus

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FIG. 26. Detail Drawing of Battery Compartment

FIG. 27. Detail Drawing of Battery

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Main Design Features

1. Selection of Lightweight Materials a. Ekki wood will be used for the outside of the train

to replace the heavy steel composition of a regular train. Ekki wood is extremely durable and weather resistance. This can be seen in its common use in bridges and roads where this type of infrastructure is constantly exposed to moisture and force.

b. Titanium will be used to reinforce the Ekki wood as it is one of the strongest and lightest materials that can be used for construction. Even though it is more expensive than steel, the fact of it having the highest strength-to-weight ratio of al metals is worth the cost.

c. Aluminum will be used to increase the longevity of the Ekki wood by covering it and protecting it. Aluminum was chosen as it is another lightweight material.

2. Filtered Holes a. As an extra precaution, batteries will be air

cooled through filtered holes of varying sizes from the sides of the casing that holds the batteries. These holes will be angled on one side and on the opposite side they will be perpendicular to the surface. This will help make sure any extra heat is diffused out of the causing and allow for unidirectional air flow.

3. Liquid Cooling Apparatus a. The overheating of the batteries became an issue

as the amount of electricity that was going to be

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required of the batteries in order to have enough energy to power the train. The team designed a liquid cooling apparatus that would cool the lithium ion battery cells due to the amount of energy required of them as well as the heat from the surrounding environment. Current radiator on the train will route coolant to the battery coolant block, allowing heat to be transferred from batteries to coolant.

For the detailed report, please click here.

Summary Introduction to Engineering Design 100 teaches the students how to draw multi-view drawings by hand, use the software program Solidworks efficiently, as well as how to brainstorm, design, and build a product. During this class, an electrical powered train as well as a foldable shopping cart have been the projects in which the design process has been implemented.

Acknowledgements Xinli Wu for teaching his students how to be a professional and successful engineer.