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Articles 1 - 13 of 13
Full-Text Articles in Engineering
Implementing A Linear Quadratic Spacecraft Attitude Control System, Daniel Kolosa
Implementing A Linear Quadratic Spacecraft Attitude Control System, Daniel Kolosa
Masters Theses
This thesis implements a linear quadratic attitude control system for a low-thrust spacecraft. The goal is to maintain spacecraft alignment with a time-varying thrust vector needed for trajectory change maneuvers. A linear quadratic attitude control approach is used to maintain spacecraft pointing throughout flight. This attitude control strategy uses the thrust-acceleration input obtained from a linear quadratic optimal trajectory control model that simulates the trajectory of a spacecraft in orbit maneuvers. This attitude model simulates a CubeSat, a small satellite that is equipped with a low-thrust propulsion and attitude control system. An orbit raising and a plane change scenario is …
Branch Cutter Adapter For Electric Impact Gun, Cullen Hubbard
Branch Cutter Adapter For Electric Impact Gun, Cullen Hubbard
Mechanical Engineering and Technology Senior Projects
There are many homeowners that would like to maintain the trees around their homes but cannot do so. The drive of this project was to develop a 0g mechanism which would provide a senior citizen or an individual with limited upper body strength, with the ability to cut through branches that would otherwise pose challenging. The design would allow the end user to cut a branch by simply pulling a trigger. A branch cutting attachment was designed to attach to the front of a DeWALT cordless impact gun. This attachment will convert the rotational torque and motion from the impact …
Instron Tt-C 1055 Redesign For Tensile Testing Lab Use: The Design And Construction Of Tensile Test Gripping Assemblies, Melvin Lee Hortman
Instron Tt-C 1055 Redesign For Tensile Testing Lab Use: The Design And Construction Of Tensile Test Gripping Assemblies, Melvin Lee Hortman
Mechanical Engineering and Technology Senior Projects
The goal of this project was to design, manufacture, and test a pair of cheap gripping assemblies with mount adapters to the Instron TT-C tensile testing machine, which was currently out of service in the Materials Laboratory of Central Washington University’s Hogue Technology Building, for educational use. The gripping assemblies would enable tensile, or pulling force, tests on tensile specimens up to 20,000 lbs, being able to test high carbon steel. The gripping assemblies and mounting adapters were designed and manufactured completely by a Central Washington University Mechanical Engineering Technology student who used the cumulative knowledge gained from engineering analysis …
Custom Glasses Cases, Nikolas Ivan Klukas
Custom Glasses Cases, Nikolas Ivan Klukas
Mechanical Engineering and Technology Senior Projects
The modern market is centralized around technological advances that improve and better everyday life. With approximately 150 million Americans that use corrective eye-ware on a daily basis, the need for improved technology in glasses cases is inevitable. Current glasses cases work to either protect the glasses and are big and bulky, or are made smaller to be more easily transported. The concept is to take any pair of glasses and make a custom case for them. The programs being utilized to complete the project are solidworks and excel. The process is started by making a base layout of the glasses …
Dump Bed Lifting Mechanism, Zachary Pate
Dump Bed Lifting Mechanism, Zachary Pate
Mechanical Engineering and Technology Senior Projects
The project was motivated by a need to create a device that would cause a small truck or trailer bed to lift up quickly and dump its contents. This would eliminate the need to use manual physical labor, which is both slow and exhausting. Additional design constraints require the stroke and diameter of the cylinder to be 6” x2”. A design was conceived with the intent to incorporate a less costly device onto an existing trailer frame that would lift the bed and dump the load. With this in mind, a scissor lift device would have two basic requirements, first …
Pivoting Motocross Foot Pegs, Michael Leblanc
Pivoting Motocross Foot Pegs, Michael Leblanc
Mechanical Engineering and Technology Senior Projects
The ability to keep a dirt bike rider’s feet in full contact with the foot pegs at all times is something all riders’ face when riding their bike. The foot pegs that come factory and aftermarket today are universally static and non-rotational which prevent the ability for maximum contact to be maintained. During various riding positions, a rider’s foot can partially become disconnected from the peg allowing for a loss of potential control and balance/stability. The solution devised was a set of pegs that have the ability to rotate with the rider’s foot. The rotational ability of the pegs allow …
The Phone In The Sky ---- Quad-Copter For Aerial Video, Heng Wei Zhang
The Phone In The Sky ---- Quad-Copter For Aerial Video, Heng Wei Zhang
Mechanical Engineering and Technology Senior Projects
With the development of aircraft model technology, quadcopters equipped with cameras are used for aerial video more and more frequently. Cell phones, moreover, allow people to share photos online immediately, so many people prefer to take photos or videos by cell phones instead with expensive cameras. Thus, the purpose of this project is to design and build a light weight quadcopter frame and select the system components that allow the quadcopter to fly smoothly while carrying a cell phone for aerial video. The method for creating the quadcopter is separated into three steps: design, build, and test. The design part …
Integration Of Information Literacy Skills To Mechanical Engineering Capstone Projects, Farshid Zabihian, Mary L. Strife, Marian G. Armour-Gemmen
Integration Of Information Literacy Skills To Mechanical Engineering Capstone Projects, Farshid Zabihian, Mary L. Strife, Marian G. Armour-Gemmen
Faculty & Staff Scholarship
Searching for information and using that information appropriately is an essential part of every engineering design project. It has been reported that design engineers spend about 30% of their time searching for information. Experience shows that even senior level students have not received proper training, either directly or indirectly, in information literacy (IL). They usually search for information intuitively. For mechanical and aerospace engineering students at West Virginia University Institute of Technology (WVU Tech), the Mechanical Engineering System Design I and II courses (MAE 480 and 481) are probably the last chance to teach students about IL. In this project, …
The School Of Engineering And Computer Science Class Of 2015 Mechanical Engineering Academic Celebration Program, Cedarville University
The School Of Engineering And Computer Science Class Of 2015 Mechanical Engineering Academic Celebration Program, Cedarville University
Engineering and Computer Science Academic Celebrations
No abstract provided.
Grit Mobile: Data Collection App For The Grit Research Project, Ryan Chang
Grit Mobile: Data Collection App For The Grit Research Project, Ryan Chang
Computer Science and Software Engineering
This project consists of one part of a larger University research project aimed at determining if active learning builds the character trait of grit in students while they learn in the domain of mechanical engineering. The research project has three goals: the development of a mobile app to measure the quantity and quality of active learning, a model of student success using the quantity and quality of active learning, and a characterization of the relationship between active learning and grit growth. This senior project focuses on the mobile app as part of the larger research project. The mobile app will …
Syllabus: Introduction To Mechanical And Industrial Engineering, Erin Baker
Syllabus: Introduction To Mechanical And Industrial Engineering, Erin Baker
Sustainability Education Resources
Student teams will explore engineering analysis and design under the theme of Engineering Sustainability: Energy and the Environment, incorporating economics, environmental impacts, and social concerns. ENGIN 113 is intended to introduce students to the fields of Mechanical Engineering and Industrial Engineering, and to provide students with important skills that they will need to be successful in college and the professional world. The specific course objectives are to: Develop effective teamwork skills, including peer- and self-evaluation. Practice critical thinking and engineering problem solving. Take a systems approach to design, incorporating economics, environment, and social concerns Develop information …
Dynamic Model Of A Non-Linear Pneumatic Pressure Modulating Valve Using Bond Graphs, Christopher L. Brubaker
Dynamic Model Of A Non-Linear Pneumatic Pressure Modulating Valve Using Bond Graphs, Christopher L. Brubaker
ETD Archive
This research develops a mathematical model of the dynamic pressure response to a variable travel input of a pneumatic pressure modulating valve intended for use in a vehicle air brake system. Generically, the valve is a multi-domain system consisting of a mechanical portion and a pneumatic portion. Included in the mechanical portion of the model are compliance of the springs, inertia of the components, and resistance of the sliding components. The pneumatic portion of the model includes capacitance due to the compressibility of the gas, flow resistance through connected plumbing, and flow resistance through the valve control orifices. The development …
Optimal Design And Control Of A Lower-Limb Prosthesis With Energy Regeneration, Holly E. Warner
Optimal Design And Control Of A Lower-Limb Prosthesis With Energy Regeneration, Holly E. Warner
ETD Archive
The majority of amputations are of the lower limbs. This correlates to a particular need for lower-limb prostheses. Many common prosthesis designs are passive in nature, making them inefficient compared to the natural body. Recently as technology has progressed, interest in powered prostheses has expanded, seeking improved kinematics and kinetics for amputees. The current state of this art is described in this thesis, noting that most powered prosthesis designs do not consider integrating the knee and the ankle or energy exchange between these two joints. An energy regenerative, motorized prosthesis is proposed here to address this gap. After preliminary data …