Index Catalog // ScholarsArchive@OSU

A methodology for iterative design using physical test data

Creator:: Morris, Wesley T.
Abstract:: This thesis addresses a common knowledge gap that was identified amongst the Society of Automotive Engineers (SAE) competition design teams at Oregon State University. Students that join the SAE teams at Oregon State University typically do not have experience using physically collected data during a design process. This leads to...
Resource Type:: Masters Thesis
Full Text:: them and their ideals, this would not have been possible. I would like to thank Dr. Robert

Adaptive methods for robust commercial vehicle control

Creator:: Junell, Jaime L.
Abstract:: This thesis explores the implementation of learning based control with predictive cruise control and the potential this technology has for increasing fuel efficiency while keeping on a well maintained schedule for commercial trucks. Traditional cruise control is wasteful when maintaining a constant velocity over rolling hills. Predictive cruise control is...
Resource Type:: Masters Thesis

Automated Tradeoff Analysis of Cost Versus Machinability for Design Feedback

Creator:: Grier, Alan Thomas
Abstract:: As CAD tools become more sophisticated, engineers are able to more easily create complex part geometries with minimal mass given strength and stiffness requirements. However, these complex part geometries can be difficult to subtractively manufacture, which consequently increases manufacturing cost and production time. This thesis presents a method independent of...
Resource Type:: Masters Thesis
Full Text:: to Profs. Karl Haapala, Bob Paasch, and Wade Marcum for serving on my thesis committee and providing

Comparing and Contrasting the Merits of Additive Manufactured Electric Vehicle Suspension Components: GFR Case Study

Creator:: Peraza-Garcia, Jesus
Abstract:: This thesis compares the implementation of additive manufactured suspension uprights against subtractive manufactured suspension uprights from concept generation, design, and validation through simulation. Additive manufactured suspension uprights were designed for Global Formula Racing’s 2023 electric vehicle. Utilizing Siemens NX, Nastran, Fusion 360, and Ansys Workbench both subtractive and additive manufactured...
Resource Type:: Masters Thesis

Design analysis using function-based failure propagation in failed system states

Creator:: Jensen, David Charles
Abstract:: For safety critical complex systems, reliability and risk analysis are important design steps. Implementing these analyzes early in the design stage can reduce costs associated with redesign and provide important information on design viability. In the past several years, various research methods have been presented in the design community to...
Resource Type:: Masters Thesis

Design, modeling, and performance of miniature reciprocating thermocompressor

Creator:: Edwards, Michael J.
Abstract:: Research in the miniaturization of thermomechanical systems in recent years has proven to be both rewarding and challenging. Micro-scale devices have tremendous technological potential but come with a new set of design problems. One such problem is energy storage. Heat actuated systems, driven primarily by thermal energy, take advantage of...
Resource Type:: Masters Thesis
Full Text:: readily available and supportive. I would like to thank my committee members Kevin Drost, Robert

Distortion-induced fatigue cracking of girder-to-crossbeam connection

Creator:: Aljutaili, Dhari S.
Abstract:: Oregon Department of Transportation’s bridge no. 9743b is a multi-span, two-girder steel deck bridge connecting the busy interstates 5 and 205. Vertical cracks have been detected in the welded girder-to-crossbeam connections at the bents. Distortion-induced fatigue is suspected to be responsible for the cracking. Linear elastic beam analysis, 2-D and...
Resource Type:: Masters Thesis
Full Text:: -to-Crossbeam Connection. Abstract approved: Robert K. Paasch Oregon

Effect of lateral force on passenger comfort during a mechanically assisteddependent transfer

Creator:: Mast, Jonathan J.
Abstract:: Air travel presents several problems for passengers with disabilities. One in particular is how they get from their wheelchair and to an aircraft seat. The commonly used manual transfer method is hazardous to the assistants and the passenger. There are other alternatives, but they have plenty of room for improvement....
Resource Type:: Masters Thesis
Full Text:: providing guidance in my graduate education. I would also like to thank Dr. Robert Paasch for

Exploring experimental test stand design and operation within a system reliability research methodology

Creator:: Koopmans, Michael, 1986-
Abstract:: In cases where complex systems routinely experience extreme operating conditions, preventative maintenance is often employed to guard against system failure. Yet, with accessible real-time data and the standard practice becoming prohibitively expensive, the test stand can serve as a vital contributor to the development of system health and reliability estimations....
Resource Type:: Masters Thesis
Full Text:: , and several rounds of text revisions. Dr. Robert Paasch provided the opportunity to conduct bearing

Extension of early stage failure analysis tools to Prognostics Health Management design

Creator:: Kramer, Scott
Abstract:: Modern complex mechanical systems have evolved to a point of incredible complexity. Many now operate with significant assistance from automated response functions, and some operate without human operators at all. These increasingly complex systems have also become more expensive and more ambitions in mission, bringing about higher risk to both...
Resource Type:: Masters Thesis
Full Text:: . Robert Paasch: Committee Member The friends I’ve made during my OSU academic endeavors Mom

Floating Offshore Wind Array Systems Optimization off the US West Coast using an Extended Pattern Search Algorithm

Creator:: Forinash, Caitlin P.
Abstract:: The large wind resource off the United States West Coast has the potential to generate wind power for millions of homes, yet the high cost of energy for offshore wind power compared to traditional sources has slowed the development of offshore wind farms in the US. The four studies presented...
Resource Type:: Masters Thesis
Full Text:: abilities as a student, researcher, and person. To Belinda Batten and Bob Paasch, for welcoming me into

Identifying customer requirements and designing for modularity in developing specialized, low production volume products

Creator:: van Tamelen, Peter G.
Abstract:: Field biologists are in need of more specialized and technical equipment than they are able to produce on their own in order to collect data more efficiently or gather data that is not currently available. This presents a challenge for design engineers because these products are typically highly specialized and...
Resource Type:: Masters Thesis
Full Text:: committee, Dr. Tim Kennedy, Dr. Robert Paasch, and Dr. Chiang, for comments on my thesis. Dr. Kennedy was

Mechanical linkage design for haptic rehabilitation and development of fine motor skills

Creator:: Streng, B. Taylor
Abstract:: Thousands of children and adults suffer from fine motor skill deficits due to developmental disabilities or brain trauma. In order to acquire or reclaim these precision motor movements, occupational therapists work closely with each patient to develop the muscle memory required for completing tasks such as handwriting or drawing. Although...
Resource Type:: Masters Thesis

Micro adiabatic combustion engine : concept development, simulation and combustion experiments

Creator:: Chewning, Scott R.
Abstract:: The current proliferation of portable electronic devices for personal communication, business and entertainment has created a demand for high energy density power supplies. A hydrocarbon fuel with a conversion efficiency of over 15% can provide greater energy density than current battery technology for these applications. Current micro-scale heat engines do...
Resource Type:: Masters Thesis

Numerical and Experimental Investigation of Wing Flutter Suppression via Distributed Propulsion

Creator:: Anderson, Cole J.
Abstract:: In a seminal paper published in 1982, scientist have warned that humanity was pushing earth’s ecosystems beyond their capacities to support the web of life. One response to the concern was outlined by NASA with its vision for advanced fixed wing transport aircraft to be environmentally compatible and have revolutionary...
Resource Type:: Masters Thesis

Offshore renewable energy : an exploration of techno-economic feasibility and reliability through a computational optimization perspective

Creator:: Clark, Caitlyn E.
Abstract:: Offshore renewable energy (ORE) has the potential to be a significant source of future global electricity production, reduce carbon emissions, decrease dependence on energy importation, and stimulate economic growth in coastal and remote areas. The availability and abundance of ORE, paired with growing coastal population centers, position offshore wind, wave,...
Resource Type:: Masters Thesis

On the modeling and control of horizontal pendulum wave energy converters

Creator:: Boren, Blake C.
Abstract:: Presented is an investigation into the modeling, active control design, and simulation of a generic horizontal pendulum wave energy converter, known as a PWEC. A description is provided of the dominant attributes PWECs have, showcasing their promising potential as wave energy converters. Seeking to further promote this potential, an active...
Resource Type:: Masters Thesis

Predictive mapping for the delineation of landtype association units in the Fremont National Forest, Oregon

Creator:: Malone, Melanie R.
Abstract:: Predictive Soil Mapping (PSM) has recently become an attractive method for soil scientists wishing to develop a more objective and efficient approach to mapping soils. Due to the potential PSM has for reducing the effort to produce soil maps, as well as its ability to improve the classification accuracy of...
Resource Type:: Masters Thesis
Full Text:: Baham, John Bailey, and Robert Paasch for serving as my committee members and for being willing to

Properties of veneer sliced from serpentine-end-matched flitches

Creator:: Liu, Yuqing
Abstract:: Eighteen Ponderosa Pine (Pinus ponderosa Dougl.ex.laws) veneer flitches were randomly selected and crosscut into paired flitches. Serpentine-end-matched (SEM) joints were machined in the flitches, joint amplitude equal to the width in one half of the paired flitch and joint amplitude equal to 2/3 width in the other half of the...
Resource Type:: Masters Thesis

Study of the Effects of Chain Whip Length and Bar Length on the Characteristics of Chain Shot

Creator:: Shannon, Eric R.
Abstract:: Timber harvesters are high powered industrial grade rigs used to fell, delimb, and cut to size large trees. Hydraulic motors power sprockets that drive chains around a guide bar that get extended through logs during cuts. As technological advances allow for higher speeds a phenomenon called “chain shot” has...
Resource Type:: Masters Thesis
Date Created:

Wave Energy Converter Array Optimization : Array Economic Analysis and Preliminary Results of a Genetic Algorithm Approach Introducing Cost Factors

Creator:: Sharp, Christopher J.
Abstract:: With the need to integrate renewable energy sources into the current energy portfolio and the proximity of many population centers to an ocean coastline, it is pressing that marine energy systems, specifically wave energy converters (WECs), are evaluated as potential solutions for meeting energy needs. In order to best understand...
Resource Type:: Masters Thesis
Full Text:: years than I thought possible. I would like also like to thank Dr. Belinda Batten and Dr. Robert

Search Constraints

Search Results

Limit your search