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Full-Text Articles in Mechanical Engineering

3d Printed Prosthetic Hand, Mark Sullivan, Bryan Oh, Ian Taylor Dec 2017

3d Printed Prosthetic Hand, Mark Sullivan, Bryan Oh, Ian Taylor

Mechanical Engineering Design Project Class

3D printed prosthetic hands are a common medical device for pediatric partial hand patients due to their manufacturability and cost-effectiveness. Current designs employ a single fist grip, but prosthetists agree that the most useful grip is the three-finger chuck. We aim to modify an existing 3D printed prosthetic hand to enable the user to switch between a single fist grip and three-finger chuck as well as lock the grip that is being used.


Cloth Folding Machine, Yiwei Liu, Dung Tran, Kexin Wang Dec 2017

Cloth Folding Machine, Yiwei Liu, Dung Tran, Kexin Wang

Mechanical Engineering Design Project Class

The project was designed to meet the needs of folding clothes for college students, housewives or anyone who has trouble folding clothes. Lots of college students are annoyed by spending time folding clothes based on our customer interviews. In addition, most of clothes folding machine in market are either for industry use or too expensive. We are trying to build a portable automatic clothes folding machine at a cheap cost to serve most people. It not only combined the metrics from existing products but also have two folding patterns, which is more convenient and efficient.


Blind-Automation Device, Melinda Lai, Dalton Nonweiler, Haley Nichols Dec 2017

Blind-Automation Device, Melinda Lai, Dalton Nonweiler, Haley Nichols

Mechanical Engineering Design Project Class

This project is intended to be a safe, easy, and inexpensive addition to existing window covers to maintain consistent indoor lighting by automatically adjusting blinds in response to ambient light levels. Our target customers are homeowners/renters and business owners concerned about employee productivity and wellness. This product will allow homeowners, business owners, and building tenants to increase occupant productivity. Bright sunlight can cause glare, making employees uncomfortable and reducing their productivity, along with their health. The product will automatically adjust window blinds to maintain a comfortable interior lighting level, promoting productivity and the bottom line. The product can also reduce …


Rc Plane Variable Wing Design, Brian Mincks, Cameron Bard, Noah Rowe Dec 2017

Rc Plane Variable Wing Design, Brian Mincks, Cameron Bard, Noah Rowe

Mechanical Engineering Design Project Class

Each year the AIAA (American Institute of Aeronautics and Astronautics) hosts a design competition where college teams design and fly a small, remote-controlled, battery-powered airplane. For this competition, scoring primarily depends upon the following: maximizing payload, maximizing speed, minimizing weight, minimizing wingspan. Since wingspan is a key scoring factor and variable wing geometry is allowed, our design team has decided to design a pivoting wing system that can be remotely activated immediately before and after takeoff and landing respectively.


Group Q- Automatic Ball Launching Entity, Zachary White, Tim Grote, Joshua Norlin Dec 2017

Group Q- Automatic Ball Launching Entity, Zachary White, Tim Grote, Joshua Norlin

Mechanical Engineering Design Project Class

The goal of the project is to create a machine that can track and aim at a target and deliver a tennis ball at a safe speed. The machine can be calibrated to ensure accurate aim. The application of the product is for entertainment and sports training, with calibration being able to be used to make easy shots for fun, and difficult shot for training. The device uses a two-axis rotation, allowing it to aim up/down and left/right. The device uses a microprocessor to calculate aim based on position of target and knowledge about the strength of the firing mechanism.


Mems 411 Design Project: Dry Ingredients Dispenser, David Robinson, Maya Wong, Elijah Kessler Dec 2017

Mems 411 Design Project: Dry Ingredients Dispenser, David Robinson, Maya Wong, Elijah Kessler

Mechanical Engineering Design Project Class

No abstract provided.


Group F Drink Mixer - Mixotron, Rebecca Danielle Stone, Christina Bell, Devon Roell Dec 2017

Group F Drink Mixer - Mixotron, Rebecca Danielle Stone, Christina Bell, Devon Roell

Mechanical Engineering Design Project Class

Bars are a great setting for friends to meet and drink however there aren’t many special features that set one bar apart from the rest. What you won’t find in any bar today is robotic bartender able to make any drink to order. In addition, there are many ways to make certain drinks, allowing for much variation. Automating the cocktail making process eliminates the variation in alcohol levels and in ingredients used. In addition, it guarantees that a customer’s drink will not have anything in it that the customer does not explicitly see. Giving the customer options of existing drinks …


Automated Color Selector, Mark Mcmillin, Mike Mehaffy, Nicholas Mcmillan, Andrew Krieger Dec 2017

Automated Color Selector, Mark Mcmillin, Mike Mehaffy, Nicholas Mcmillan, Andrew Krieger

Mechanical Engineering Design Project Class

Design, build, and sell a safe automated primary color dye mixer to schools for the purpose of teaching children how 12 secondary colors (and shades) on a color wheel can be made via the primary colors. The user will select the desired color (on a color wheel) and the machine will automatically deposit the correct amount of each primary color to create the selected color (or shade). The dye will diffuse in the cup, to create the desired color. Dye will be used in the machine so that if a mess is made, the cleanup is easy. However, we will …


Dry Ingredient Dispenser, Group S, 2017, Nick Caywood, Noelle T. Wojciechowsi Dec 2017

Dry Ingredient Dispenser, Group S, 2017, Nick Caywood, Noelle T. Wojciechowsi

Mechanical Engineering Design Project Class

We wanted to come up with a way to automate the process of measuring and dispensing dry ingredients for baking.


The Automatic Bartender, Richard Wu, Alex Nassar, Keegan Lathrum Dec 2017

The Automatic Bartender, Richard Wu, Alex Nassar, Keegan Lathrum

Mechanical Engineering Design Project Class

The automatic bartender will hold 2 liquors and 2 mixers. When the user selects the option to make a drink, the device will pour out the required amounts of liquid into a container, via tubing that feeds into the container. The container has an internal stirrer to mix the components together, and then empties into a cup. The end result is a finished cocktail, and the machine is designed for residential use.


Tissue Stretching Device, Usama Ismail, Humza Ismail, Elvir Sarajlic Dec 2017

Tissue Stretching Device, Usama Ismail, Humza Ismail, Elvir Sarajlic

Mechanical Engineering Design Project Class

This tissue loading project consists of designing an apparatus that has two main functions. The first, and most obvious of these, being creating a device that will deform a band or disk of tissue with cells pre-seeded on them uniaxially while recording the stress and strain, specifically strain rate, that is applied to the tissue. While the deformation aspect of this device will be key, an equally important part of this project will be designing a part of our tissue loader that mimics the environmental chamber that the lab already uses or is compatible with the environmental chamber that is …


2018 Asme Student Design Competition - Group T Senior Design Project, Thomas Hess, Anker Anderson, Drew Daugherty, Jack Dufelmeier Dec 2017

2018 Asme Student Design Competition - Group T Senior Design Project, Thomas Hess, Anker Anderson, Drew Daugherty, Jack Dufelmeier

Mechanical Engineering Design Project Class

The purpose of this project is to create a single soccer playing robot to compete in the 2018 ASME student design competition. The robot, along with spare parts and all other devices must fit inside a 50x50x50 cm box. This robot must be able to traverse the field via remote control and have the ability to control a tennis ball and shoot it with sufficient force.


Torsional Stiffness Measuring Device, Cheyne Shiroma, Clayton Over, Nadab Wubshet Dec 2017

Torsional Stiffness Measuring Device, Cheyne Shiroma, Clayton Over, Nadab Wubshet

Mechanical Engineering Design Project Class

This device will measure the torsional stiffness of a FSAE race car frame. Our design will apply a torsional load to the frame while simultaneously providing precise measurements required to calculate the applied load, displacement, angular deflection, and torsional stiffness. Unlike the most popular method of testing torsional stiffness by applying load with a lever, our device twists the frame using hydraulic bottle jacks with an integrated pressure gauge. This aspect enables precise control of the twist, and the pressure gauges provide the capability of load-measurement. The validity of measurements will be assessed by comparing results to theoretical calculations.


Macroscopic Model Of A Cilium Appendage, Laura Barber, Rachel Mickelson, Wilson Roen, Isabella Merz Dec 2017

Macroscopic Model Of A Cilium Appendage, Laura Barber, Rachel Mickelson, Wilson Roen, Isabella Merz

Mechanical Engineering Design Project Class

The goal of this project is to develop a macroscopic model of the cilia appendage and a realistic testing environment for the model. The model should be created with materials that effectively replicate the material and mechanical properties of the appendage in the human body. Additionally, the testing environment should mimic the viscous fluid that surrounds cilia in the human body to allow for more accurate testing. The fluid’s flow should be parallel to the model and induce instability in the system. This instability should force the cilia model to oscillate like a flag in the wind. Upon completion of …


Sanitation System For Underdeveloped Countries, Anish Agrawal, Mutian Tang, Dylan Lesher, Reid Schur Oct 2016

Sanitation System For Underdeveloped Countries, Anish Agrawal, Mutian Tang, Dylan Lesher, Reid Schur

Mechanical Engineering Design Project Class

Currently, there are over 2.5 billion people living in the world without having access to proper sanitation. This is primarily because of lack of access to water and/or their financial situation to afford a sanitation system. Therefore, there is a need for a sanitation system which can flush in less water and is inexpensive. This project involves the creation of a sanitation system for use in impoverished areas with little access to water or electricity.


Maneuverable Backpack Scooter Attachment, Andrew Goldfield, Alex Roesch, Cosmo Centanni, Nina Nepa Oct 2016

Maneuverable Backpack Scooter Attachment, Andrew Goldfield, Alex Roesch, Cosmo Centanni, Nina Nepa

Mechanical Engineering Design Project Class

A mechanical device that will aid in the collaboration between a scooter and a backpack. Due to the weight of typical backpack, our device will aid the consumer to carry less weight on their backs, and create a device to fold into the scooter so that it nicely fits in a classroom setting. This device will be detachable so that the scooter can be operated without the attachment.


Automatic Onion Peeler, William R. Luer, Matthew O. Clohisy, Craig A. Claire, Dylan L. Newcomb Oct 2016

Automatic Onion Peeler, William R. Luer, Matthew O. Clohisy, Craig A. Claire, Dylan L. Newcomb

Mechanical Engineering Design Project Class

Our senior design report encompasses the design selection, process, and fabrication of an automatic onion peeler. Our design is intended for the peeling of medium yellow onions in restaurant-scale applications. Our machine is easily cleaned and can be safely operated by one person.


Universal Pitter, Angelica Price, Rachel Venn Oct 2016

Universal Pitter, Angelica Price, Rachel Venn

Mechanical Engineering Design Project Class

Fruits with pits in them have been cumbersome to eat due to the delicate quality of the fruit and the rigid structure of the pits that must be removed. Many types of pitters already exist, but any are for small pits such as cherries and olives or involve to much manual action. This pitter will remove the pit out of multiple types of fruit while holding the fruit in a manner that does not damage the fruit. This projected was initiated by Rachel Venn, an engineering student at Washington University in St. Louis, who took a pole amongst family and …


Asme Student Design Challenge, James Mitchell, Ean Murnan, Alex Wirtz Oct 2016

Asme Student Design Challenge, James Mitchell, Ean Murnan, Alex Wirtz

Mechanical Engineering Design Project Class

The Olympic Summer Games test the abilities of people throughout the world in a wide variety of athletic challenges. The athlete that wins the Olympic decathlon or heptathlon is referred to as the world’s greatest male or female athlete. The 2017 Student Design Competition challenges your technical design skills to create a robot that is fast, strong, and agile. Your team must build a remotely controlled device to compete against others in five different events – a robot pentathlon. Scores from each of the events will be combined to determine the overall champion. Our team will attempt to design a …


Mems 411 Design Report Group O: Naked Mole Rat Trap, Drew Pikey, Adam Glassl, Sam Nadell Oct 2016

Mems 411 Design Report Group O: Naked Mole Rat Trap, Drew Pikey, Adam Glassl, Sam Nadell

Mechanical Engineering Design Project Class

Naked mole-rats are mouse size rodents that live in underground colonies in East Africa. They are best known for having a queen and workers like bees. Prof Stan Braude has been studying them in Kenya and Ethiopia for over 25 years and has trapped over 10,000 of these animals, marked and released them. He is the world’s expert at trapping naked mole-rats and yet, he still needs a better trap. Prof. Stan Braude is looking forward to working with a team of real engineers and designers who can help him complete this project.


Autonomous Shopping Cart, John Gutsch, Steven Taschner, Asim Zaidi Oct 2016

Autonomous Shopping Cart, John Gutsch, Steven Taschner, Asim Zaidi

Mechanical Engineering Design Project Class

In shopping centers across the United States, customers must return shopping carts after they used them by themselves. For a variety of reasons, a significant number of shopping carts are left in parking lots after being used. This results in expenses to the store in the form of damaged carts, man hours required to return each one, and law suits from customers whose cars are damaged by free carts. This project is an add-on mechanism by which allows shopping carts to return to the shopping center autonomously. The cart should be able to locate a preset track that is set …


Group H: Expandable Brush, Aaron Hall, Michael Roznik Oct 2016

Group H: Expandable Brush, Aaron Hall, Michael Roznik

Mechanical Engineering Design Project Class

This is an overview of our project to design an expandable brush. This brush is designed to be versatile and able to clean a variety of vessels with narrow necks, wide bases, and complex geometries. Our prototype consisted of two parts: an outer sleeve with a deflector and a handle with a head piece to hold our bristle filaments. This design allows the user to insert the brush into a vessel and then control how far outward the bristles expand for easy cleaning.


Reinventing The Dishwasher, Caryn Devaney, Carter Fraser, Aaron Walters Oct 2016

Reinventing The Dishwasher, Caryn Devaney, Carter Fraser, Aaron Walters

Mechanical Engineering Design Project Class

Most people aren’t excited to do the dishes. Still, washing cookware like pots and pans is an unavoidable task - and even those who own dishwashers typically choose to handwash them after use. After conducting a wide-ranging market survey, we designed a standalone device which can fill the existing gap between handwashing and dishwashing. We successfully built a single pan dishwasher which simulates hand washing to clean nonstick frying pans.


Building A Better Naked-Mole Rat Trap Mems 411- Senior Design Course, Alex Flammond, Lance Middleton, Andrew Chang Oct 2016

Building A Better Naked-Mole Rat Trap Mems 411- Senior Design Course, Alex Flammond, Lance Middleton, Andrew Chang

Mechanical Engineering Design Project Class

In this paper, we design, analyze, test, and construct an improved naked mole rat trap for Prof. Stan Braude of Washington University in St. Louis.


Telescoping Cup Holder, Richard Kristian O. Pajarillo, Eric Nehrbas, Charlie Morrow Oct 2016

Telescoping Cup Holder, Richard Kristian O. Pajarillo, Eric Nehrbas, Charlie Morrow

Mechanical Engineering Design Project Class

Cup holders are a beloved feature of the modern automobile because they keep your drink stable and close, ensuring that minimal work is needed to grab it. Our mission is to provide a cup holder for everyday use outside of vehicles. Our device will hold drinks of most sizes, and will keep them cool. Motion activation will raise the drink to a convenient height using a telescoping motion, and then lower to a sturdy position that is out of the way. The finished product will minimize the amount of work required to retrieve the drink, and grab some attention as …


An Improve Naked Mole Rat Trap, Group Iii, Spencer Egly, Ted Daley, Andrew Thompson Oct 2016

An Improve Naked Mole Rat Trap, Group Iii, Spencer Egly, Ted Daley, Andrew Thompson

Mechanical Engineering Design Project Class

This project attempts to improve on Dr. Stan Braude’s current Naked Mole Rat trap design. Dr. Braude currently uses his trap to catch and tag naked mole rats for his research. While Dr. Braude is happy with his current trap, he designed them himself over twenty years ago, and believes that they can be improved and modernized for increased ease and convenience. The key project goal is to deliver an improved trap to Dr. Braude that will meet his needs. The modifications that this project will attempt to deliver are a repeatable, solar powered trap that is compatible with his …


Four-Wheel Steering, Theodore Wisniewski, Andrew Sparrow, Phil Rowsell Oct 2016

Four-Wheel Steering, Theodore Wisniewski, Andrew Sparrow, Phil Rowsell

Mechanical Engineering Design Project Class

This prototype Four-Wheel Steering system is designed for a Formula SAE racecar. Multiple steering geometries can be applied to optimize the handling across a range of speeds. Ackermann steering geometry at low speeds improves the car’s agility in tight, technical race courses. At high speeds the steering transitions to parallel steering geometry, improving stability and giving the driver more precise control over the vehicle. The system fits seamlessly within the rear suspension packaging of the existing WashU Racing vehicle design and minimizes addition of weight by using compact and lightweight electronic linear actuators to steer the rear wheels. In testing …


Group F: Cell Phone Forearm Holder, Jacob Aley, Emily Groth, Sinclair Hodge Oct 2016

Group F: Cell Phone Forearm Holder, Jacob Aley, Emily Groth, Sinclair Hodge

Mechanical Engineering Design Project Class

Design a forearm device that stores cell phones while traveling and provides an easy access apparatus for one handed use on the go. A compression sleeve will be the main feature as it will be the way in which our device will stay on the users arm. An adjustable apparatus that securely holsters the cellphone will be another feature so that our device will be viable for cellphones of varying dimensions. A swivel apparatus that will allow users to select horizontal or vertical viewing of the cellphone while connected to our device. A track system that allows for the movement …


Mechanically Advantageous Wheelchair, Katy Hagerty, Noah Dromgoole, Carlo Balleria, Andrew Orona Oct 2016

Mechanically Advantageous Wheelchair, Katy Hagerty, Noah Dromgoole, Carlo Balleria, Andrew Orona

Mechanical Engineering Design Project Class

This project will utilize a gear system to create a multispeed wheelchair. Multiple gears will allow users to adjust the speed of the wheelchair for appropriate scenarios. Our device will be modular and use a different gear mechanism than products currently in the marketplace.


Compact Furniture Dolly, Gary Hu, Jieun Yim, Jason Xie, Jiayi Hou Oct 2016

Compact Furniture Dolly, Gary Hu, Jieun Yim, Jason Xie, Jiayi Hou

Mechanical Engineering Design Project Class

One problem faced by people during moving is how to move large pieces of furniture, i.e. sofa, mattress, table, refrigerator, etc., conveniently without damaging them. A typical small dolly is incapable of carrying such large pieces, and a bulky dolly is inappropriate for an indoor use because it can damage the furniture and the floor. Besides, in either case, the user should lift up and put the load on the dolly. People who want to change positions of their furniture regularly to get a fresh look for the house, it is cumbersome to call a moving company every time. Our …