Open Access. Powered by Scholars. Published by Universities.®

Other Mechanical Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

605 Full-Text Articles 1175 Authors 330821 Downloads 46 Institutions

All Articles in Other Mechanical Engineering

Faceted Search

605 full-text articles. Page 1 of 26.

Balancing Of Production Line In A Bearing Industry To Improve Productivity, Sudharsan Sridhar, Balthilak Anandaraj, Santhosh B 2017 Western Michigan University

Balancing Of Production Line In A Bearing Industry To Improve Productivity, Sudharsan Sridhar, Balthilak Anandaraj, Santhosh B

The Hilltop Review

Line balancing addresses the issues of balancing production or assembly line and it generally minimizes the idle time for all the events and the combinations of workstations. Factors such as lack of materials, design changes in the product, labor position may also be needed for line balancing. We approached the industry and proposed a heuristic solution solving in two different platforms, by rearranging the existing tasks over the work stations, so that the idle time of the machines are reduced to minimum and the other is by using Timer Pro software where grouping of similar kind of activities are to ...


A Computational Fluid Dynamics Study On Bidirectional Glenn Shunt Flow With An Additional Pulsatile Flow Through A Modified Blalock-Taussig Shunt, Seda Aslan 2017 University of New Orleans

A Computational Fluid Dynamics Study On Bidirectional Glenn Shunt Flow With An Additional Pulsatile Flow Through A Modified Blalock-Taussig Shunt, Seda Aslan

University of New Orleans Theses and Dissertations

The blood flow through the Bidirectional Glenn shunt (BGS) and modified Blalock-Taussig shunt (mBTS) to the pulmonary arteries (PAs) was analyzed using Computational Fluid Dynamics. This study consisted of the steady and pulsatile cases. In case one, the results of blood flow through the BGS for the Newtonian and non-Newtonian viscosity models were compared. Case two focused on having an additional pulsatile blood flow through the mBTS using the non-Newtonian Carreau viscosity model. The geometries were created based on the angiograms. In case one, boundary conditions to be specified at the inlets were obtained from the flow rate measurements via ...


Particle Enrichment In Longitudinal Standing Bulk Acoustic Wave Microfluidics, Mingyang Cui 2017 Washington University in St Louis

Particle Enrichment In Longitudinal Standing Bulk Acoustic Wave Microfluidics, Mingyang Cui

Engineering and Applied Science Theses & Dissertations

Separation, isolation, and enrichment of targeted nano- and microparticles are critical to a variety of biomedical applications from clinical research (development of therapeutics and diagnostics) to fundamental investigations that require concentration of specific cells from culture, separation of target species from heterogenous mixtures, or controlled perturbation of cells and microorganisms to determine their response to stimuli. Numerous techniques are available for bench-scale and medical settings; however, these traditional approaches are often labor intensive, time-consuming, costly, and/or require modification of the target. Efficiency and specificity are also lacking. Recently, techniques that exploit the similar scales of microfluidic technologies and the ...


Determining Drag Forces On 3d Printed Shark Skin And The Conditions In Which Drag Forces Are Reduced, Kayla M. Bartnicke 2017 University of Arkansas, Fayetteville

Determining Drag Forces On 3d Printed Shark Skin And The Conditions In Which Drag Forces Are Reduced, Kayla M. Bartnicke

Mechanical Engineering Undergraduate Honors Theses

ABSTRACT

This project was conducted at the University of Arkansas with access to 3D printers and a water tunnel. The project examines drag forces over 3D-printed shark skin. Shark skin was chosen to be studied because of its unique three-pronged denticle shape and the assumption that this unique shape has a purpose, such as drag reduction.

A shark denticle was designed using SolidWorks software, multiplied 164 times creating a total skin area of 17.5 in2, and printed using both a MakerBot Replicator 2 3D printer and an Ultimaker 2 Go 3D printer. The shark skin was initially printed ...


Next Steps For Mentoring Program, Patrick Gray 2017 University of Dayton

Next Steps For Mentoring Program, Patrick Gray

Sustainability and Connectivity

This file provides a jump-off position for students in the fall 2017 semester who want to continue work toward a mentoring program.


Software For Extracting Deformation Gradient And Stress From Md Simulations: Simulations Using The Charmm Force Field, Mehrdad Negahban, Lili Zhang, Zesheng Zhang, John Jasa, Antoine Jérusalem 2017 University of Nebraska - Lincoln

Software For Extracting Deformation Gradient And Stress From Md Simulations: Simulations Using The Charmm Force Field, Mehrdad Negahban, Lili Zhang, Zesheng Zhang, John Jasa, Antoine Jérusalem

Mechanical & Materials Engineering Faculty Publications

Software was developed, and is provided under a general use license, to calculate continuum level deformation gradient and stress for any group of atoms in an MD simulation that uses the Charmm force fields. This software can also calculate the interaction stress applied by one group of atoms on any other group. To obtain deformation gradient and stress, the user needs to provide the selected group(s) of atoms in an atom group identification file, and provide the associated LAMMPS format files and force field parameter file. An example is included to demonstrate the use of the software.


Project Plan - Mentoring, Abigail Lisjak, Patrick Gray, Timothy Leonard, Adam Foster 2017 University of Dayton

Project Plan - Mentoring, Abigail Lisjak, Patrick Gray, Timothy Leonard, Adam Foster

Sustainability and Connectivity

A presentation that includes the ideal goal for the project as well as how the project can relate to the other projects in the class.


Corgi: Compute Oriented Recumbent Generation Infrastructure, Christopher Allen Hunt, Christopher Allen Hunt 2017 California Polytechnic State University, San Luis Obispo

Corgi: Compute Oriented Recumbent Generation Infrastructure, Christopher Allen Hunt, Christopher Allen Hunt

Master's Theses and Project Reports

Creating a bicycle with a rideable geometry is more complicated than it may appear, with today’s mainstay designs having evolved through years of iteration. This slow evolution coupled with the bicycle’s intricate mechanical system has lead most builders to base their new geometries off of previous work rather than expand into new design spaces. This crutch can lead to slow bicycle iteration rates, often causing bicycles to all look about the same. To combat this, several bicycle design models have been created over the years, with each attempting to define a bicycle’s handling characteristics given its physical ...


In-Bottle Wine Aerator, Kevin Kesler, Patrick Lowry, Paul Woolworth 2017 California Polytechnic State University - San Luis Obispo

In-Bottle Wine Aerator, Kevin Kesler, Patrick Lowry, Paul Woolworth

Kevin Kesler

The proposal for Capitol Cultivators discusses and evaluates the development of an in-bottle wine aerator. It defines the problem and need for an aerator located inside the wine bottle. Additionally, it outlines requirements essential for an effective design and describes the engineering process that will be followed.


Skin Strain Measurement To Predict Knee Joint Angles Through Nanocomposite Stain Gauges, Adin Martineau, James Tracy, Gavin Collins, Parker Rosquist, Dustin A. Bruening, Matt K. Seeley, David T. Fullwood, Anton E. Bowden 2017 Brigham Young University

Skin Strain Measurement To Predict Knee Joint Angles Through Nanocomposite Stain Gauges, Adin Martineau, James Tracy, Gavin Collins, Parker Rosquist, Dustin A. Bruening, Matt K. Seeley, David T. Fullwood, Anton E. Bowden

Biomedical Engineering Western Regional Conference

Explores the possibility of using high deflection nanocomposite strain gauges as knee joint angle sensor.


Redesign Of Computer Keyboards For Hospital And Consumer Use, Kent Williams, Brian Jensen, Anton Bowden 2017 Brigham Young University - Provo

Redesign Of Computer Keyboards For Hospital And Consumer Use, Kent Williams, Brian Jensen, Anton Bowden

Biomedical Engineering Western Regional Conference

Application of carbon nanotube coatings to computer keyboards in order to reduce the spread of bacteria in hospitals and homes.

Keywords: carbon nanotube, bacteria, antimicrobial, keyboard, design, MRSA, biofilm


A Nanocomposite Sensor Neck Sleeve For Tracking In Vivo Spine Kinematics In The Alpaca, Colton Porter Graham, Anton Bowden 2017 Brigham Young University

A Nanocomposite Sensor Neck Sleeve For Tracking In Vivo Spine Kinematics In The Alpaca, Colton Porter Graham, Anton Bowden

Biomedical Engineering Western Regional Conference

Chronic low back pain in the US is often attributed to intervertebral disc degeneration. Camelids, particularly alpacas, pose a potential model for spinal treatment due to similarity of the spinal structure and vertical loading. Alpacas also exhibit a high rate of natural disc degeneration. To gain more understanding about how disc degeneration is caused in alpacas it is necessary to understand the loading and motion of the alpaca cervical spine. The goal of the present work was to incorporate nanocomposite sensors into a custom-designed neck sleeve to track the daily in-vivo neck motion of an alpaca in its natural environment.


Bridge Damage Detection Using Spatiotemporal Patterns Extracted From Dense Sensor Network, Chao Liu, Yongqiang Gong, Simon Laflamme, Brent M. Phares, Soumik Sarkar 2017 Iowa State University

Bridge Damage Detection Using Spatiotemporal Patterns Extracted From Dense Sensor Network, Chao Liu, Yongqiang Gong, Simon Laflamme, Brent M. Phares, Soumik Sarkar

Simon Laflamme

The alarmingly degrading state of transportation infrastructures combined with their key societal and economic importance calls for automatic condition assessment methods to facilitate smart management of maintenance and repairs. With the advent of ubiquitous sensing and communication capabilities, scalable data-driven approaches is of great interest, as it can utilize large volume of streaming data without requiring detailed physical models that can be inaccurate and computationally expensive to run. Properly designed, a data-driven methodology could enable fast and automatic evaluation of infrastructures, discovery of causal dependencies among various sub-system dynamic responses, and decision making with uncertainties and lack of labeled data ...


The Design And Testing Of A High Performance Formula Sae Powertrain, Ryan T. Harty 2017 The University of Akron

The Design And Testing Of A High Performance Formula Sae Powertrain, Ryan T. Harty

Honors Research Projects

Every year the Society of Automotive Engineers (SAE) tasks collegiate students with designing, constructing, testing, and competing with an open wheel formula style racecar. This vehicle has to meet stringent technical requirements that are provided in a rule book published by SAE. The Formula SAE (FSAE) rule book is a very comprehensive set of requirements that are centered on safety of the driver of the vehicle and the safety of the track workers. The students are required to read and understand the rulebook in order to use sound engineering practices to build not only a high performing vehicle but a ...


Quantification Of Re-Absorption And Re-Emission Processes To Determine Photon Recycling Efficiency In Perovskite Single Crystals, Yanjun Fang, Haotong Wei, Qingfeng Dong, Jinsong Huang 2017 University of Nebraska-Lincoln

Quantification Of Re-Absorption And Re-Emission Processes To Determine Photon Recycling Efficiency In Perovskite Single Crystals, Yanjun Fang, Haotong Wei, Qingfeng Dong, Jinsong Huang

Mechanical & Materials Engineering Faculty Publications

Photon recycling, that is, iterative self-absorption and re-emission by the photoactive layer itself, has been speculated to contribute to the high open-circuit voltage in several types of high efficiency solar cells. For organic–inorganic halide perovskites that have yielded highly efficient photovoltaic devices, however, it remains unclear whether the photon recycling effect is significant enough to improve solar cell efficiency. Here we quantitatively evaluate the re-absorption and re-emission processes to determine photon recycling efficiency in hybrid perovskite with its single crystals by measuring the ratio of the re-emitted photons to the initially excited photons, which is realized by modulating their ...


Flowtaxis Of Osteoblast Migration Under Fluid Shear And The Effect Of Rhoa Kinase Silencing, Brandon D. Riehl, Jeong Soon Lee, Ligyeom Ha, Il Keun Kwon, Jung Yul Lim 2017 University of Nebraska-Lincoln

Flowtaxis Of Osteoblast Migration Under Fluid Shear And The Effect Of Rhoa Kinase Silencing, Brandon D. Riehl, Jeong Soon Lee, Ligyeom Ha, Il Keun Kwon, Jung Yul Lim

Mechanical & Materials Engineering Faculty Publications

Despite the important role of mechanical signals in bone remodeling, relatively little is known about how fluid shear affects osteoblastic cell migration behavior. Here we demonstrated that MC3T3-E1 osteoblast migration could be activated by physiologically-relevant levels of fluid shear in a shear stress-dependent manner. Interestingly, shear-sensitive osteoblast migration behavior was prominent only during the initial period after the onset of the steady flow (for about 30 min), exhibiting shear stress-dependent migration speed, displacement, arrest coefficient, and motility coefficient. For example, cell speed at 1 min was 0.28, 0.47, 0.51, and 0.84 μm min-1 for static ...


Atomically Informed Nonlocal Semidiscrete Variational Peierls-Nabarro Model For Planar Core Dislocations, Guisen Liu, Xi Cheng, Jian Wang, Kaiguo Chen, Yao Shen 2017 Shanghai Jiao Tong University

Atomically Informed Nonlocal Semidiscrete Variational Peierls-Nabarro Model For Planar Core Dislocations, Guisen Liu, Xi Cheng, Jian Wang, Kaiguo Chen, Yao Shen

Mechanical & Materials Engineering Faculty Publications

Prediction of Peierls stress associated with dislocation glide is of fundamental concern in understanding and designing the plasticity and mechanical properties of crystalline materials. Here, we develop a nonlocal semi-discrete variational Peierls-Nabarro (SVPN) model by incorporating the nonlocal atomic interactions into the semi-discrete variational Peierls framework. The nonlocal kernel is simplified by limiting the nonlocal atomic interaction in the nearest neighbor region, and the nonlocal coefficient is directly computed from the dislocation core structure. Our model is capable of accurately predicting the displacement profile, and the Peierls stress, of planar-extended core dislocations in face-centered cubic structures. Our model could be ...


High Temperature Near-Field Nanothermomechanical Rectification, Mahmoud Elzouka, Sidy Ndao 2017 University of Nebraska - Lincoln

High Temperature Near-Field Nanothermomechanical Rectification, Mahmoud Elzouka, Sidy Ndao

Mechanical & Materials Engineering Faculty Publications

Limited performance and reliability of electronic devices at extreme temperatures, intensive electromagnetic fields, and radiation found in space exploration missions (i.e., Venus & Jupiter planetary exploration, and heliophysics missions) and earth-based applications requires the development of alternative computing technologies. In the pursuit of alternative technologies, research efforts have looked into developing thermal memory and logic devices that use heat instead of electricity to perform computations. However, most of the proposed technologies operate at room or cryogenic temperatures, due to their dependence on material’s temperature-dependent properties. Here in this research, we show experimentally—for the first time—the use of ...


Mentoring Initial Research, Abigail Lisjak, Tim Leonard, Adam Foster, Patrick Gray 2017 University of Dayton

Mentoring Initial Research, Abigail Lisjak, Tim Leonard, Adam Foster, Patrick Gray

Sustainability and Connectivity

This document details the initial research the group gathered as the problem statement was being refined. Some of this research will be used to inform future elements of the project.


Computational Studies On Biomechanics Of Concussion And On Efficacy Of Football Helmets, David Labyak 2017 Michigan Technological University

Computational Studies On Biomechanics Of Concussion And On Efficacy Of Football Helmets, David Labyak

Dissertations, Master's Theses and Master's Reports

Football helmets have been used for many years to prevent head injuries to players. Over the years, the helmet design has evolved from a crude leather head covering to the more recent form fitting helmets that are seen today. The one design feature that has been common in the majority of all helmets is a hard polycarbonate shell with a foam cushion padding. The main goal of the padding layer was to reduce the amount of linear acceleration during an impact event. The one feature that has been overlooked is how stiff the padding is in rotation.

The purpose of ...


Digital Commons powered by bepress