Index Catalog // ScholarsArchive@OSU

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

Creator:: Aerne, Nicholas S. J.
Abstract:: Nickel (Ni)-based alloys with a high chromium (Cr) content are frequently employed in applications where elevated temperatures and/or corrosive environments are present due to their excellent corrosion resistance and mechanical properties. However, a gap exists around the formation, and kinetics of long-range order (LRO) Ni2Cr phase in both model binary...
Resource Type:: Dissertation

Sizing and Performance of the Pendulum Power Take-Off Wave Energy Converter: Modularity and Chaotic Behavior

Creator:: Dizon, Chris
Abstract:: Multiple wave energy converter (WEC) archetypes exist with varying power take-off (PTO) designs in the attempt to maximize ocean energy harnessed and converted into useful energy. The pendulum PTO is popular for its simple, yet robust functionality due to its internally located components and simple operation. Additionally, this PTO does...
Resource Type:: Dissertation

Autonomous Sensor Systems For Wind Turbine Blade Collision Detection

Creator:: Clocker, Kyle
Abstract:: Wind turbines serve an increasing proportion of total energy generation, with expanded onshore and offshore installations proceeding worldwide. Continued construction, expansion, and operation of wind energy installations must be managed in conjunction with effects on local and migratory wildlife, specifically bird and bat species that may be affected by wind...
Resource Type:: Dissertation

Wireless Multi-Sensor Patch for Wind Turbine Impact Detection

Creator:: Wilson, Calder
Abstract:: Bird and bat collisions with wind turbines are a problem that needs to be better quantified for its impact to be fully understood. This thesis documents portions of the design of a sensor patch module for use on wind turbines blades to detect impacts caused by birds and bats. This...
Resource Type:: Honors College Thesis

Development of a Collision Detection Module for Avian and Bat Species on Wind Turbine

Creator:: Davis, Cassandra L.
Abstract:: Renewable energy technology continues to grow in popularity as countries aim to reduce greenhouse gas emissions. Land based and offshore wind turbines are one option for expanding renewable energy sources. However, as wind energy adoption increases, so does the need for enhanced monitoring of wind turbines’ potential effect on local...
Resource Type:: Capstone Project

Race Car Monocoque Design? A Loaded Question Suspension Kinematics, Loads & Sandwich Panel Optimization Methodologies

Creator:: Gray, Gabriel M.
Abstract:: As designers continue to develop the ability to improve a component or system design relative to any number of metrics, priorities and objectives, the need for advanced methodologies which focus efforts and steer design decisions to best meet the needs of the organization becomes increasingly important. This work develops such...
Resource Type:: Masters Thesis

Simulation Automation for the Evaluation of Formula Student Aerodynamic Concepts

Creator:: Sanchez, Adrian
Abstract:: The design of a competition-winning aero package must consider multiple vehicle attitudes. Aerodynamic concepts simulated in heave, pitch, roll, high-speed yaw, and low-speed yaw to design a stable and predictable aero package. The methodology automates the simulation setup process of five vehicle attitudes. The overall and subsystem force coefficients are...
Resource Type:: Masters Thesis

Field and Numerical Investigation of Pavement Vehicle Interaction Related Excess Fuel Consumption and Delamination

Creator:: Estaji, Mostafa
Abstract:: With ever-increasing number of vehicles actively using the state and national roadway network, transportation-related fuel consumption and consequent pavement structural damage rises. In this dissertation, the impact of material-induced dissipated energy mechanisms in asphalt and concrete pavements were analyzed using field measurements in California and finite element modeling of pavement...
Resource Type:: Dissertation

Innovative Strategies to Protect Concrete Bridge Decks and Cross-Laminated Timber Structures through the Use of Impermeable Overlays

Creator:: Haynes, Matthew A.
Abstract:: Bridges are a vital component of transportation infrastructure in the United States, and the continual maintenance and preservation of bridges is critical to maintaining their structural capacity and maximizing service life. One of the most significant issues faced by concrete bridges is the infiltration of moisture from the roadway surface...
Resource Type:: Masters Thesis

Female Mold Fabrication Process Development with Pre-Impregnated Composite Materials for Application to Sub-Orbital Rockets

Creator:: Hayden, Muriel A.
Abstract:: The leading edge of a sub-orbital, sounding rocket dictates an aerodynamically optimal profile which is difficult to manufacture. The university level offers no current standard to produce rocket nose cones made with pre-impregnated composites. Of particular interest is the molding technique used to fabricate a nose cone. The focus of...
Resource Type:: Honors College Thesis

Real-time Dynamic Schedule Updating Through Integrated Lean Construction Methods

Creator:: Lotti de Oliveira Paula, Gustavo
Abstract:: Planning and management methods in construction need to constantly evolve to keep pace with the growing demand and complexity of work in increasingly competitive environments. This need for innovation and process improvement has attracted lean construction philosophy in industry management practice. Lean has been used in the construction industry to...
Resource Type:: Masters Thesis

Impacts of Prediction on Wave Energy Converter Control

Creator:: Comard, Colin Q.
Abstract:: Ocean waves provide a promising source of renewable energy for the North American electric grid. However, ideal control of wave energy converters (WECs) requires perfect forecasting of future wave conditions, and waves can be unpredictable. This paper presents a comparison of three different prediction methods and analyzes their performance in...
Resource Type:: Masters Thesis

Adhesive Properties Subject to Variation in Temperature, Thickness, and Working Time

Creator:: Aerne, Nicholas, S. J.
Abstract:: Adhesive use is becoming increasingly common in manufacturing processes. The advantage of adhesives are light weight components, non-destructive fastening techniques and distribution of loads over the applied bond region. Modeling the behavior of adhesive bond lines in fastening joints can help in the design process to make an optimized joint,...
Resource Type:: Masters Thesis

Development of a Reliability-Based Framework and Empirical Models for Justifying Allowable Chloride Limits and Quantifying Critical Input Variables for Predicting the Service Life of Reinforced Concrete Structures

Creator:: Shakouri Hassanabadi, Mahmoud
Abstract:: Significant progress has been made over the past 20 years in developing models to estimate the service-life of reinforced concrete systems. The basic understandings of the mechanisms that control the transport of ions and moisture in concrete systems have been well researched and models for determining corrosion initiation, specifically chloride-induced...
Resource Type:: Dissertation

Deep-sea sediment paleomagnetism : a case study from the North Atlantic

Creator:: Strano, Sarah Elianna
Abstract:: Sedimentary records from the North Atlantic, instrumental in the development of modern paleo-geomagnetic concepts, show a highly variable field even during times of constant polarity. Yet, our understanding of how the magnetization is acquired in the sediments is poorly understood. Primary magnetizations preserved in deep-sea sediments are known to be...
Resource Type:: Dissertation

Design and Optimization of a 1 kW Hybrid Powertrain for Unmanned Aerial Vehicles

Creator:: Brown, Sean P.
Abstract:: A 1 kW series hybrid powertrain was developed at Oregon State University for use in unmanned aerial vehicles (UAVs). This powertrain was designed to give mission flexibility and increased flight time to fixed-wing vertical takeoff and landing UAVs and multirotor UAVs. The powertrain components, an internal combustion engine and a...
Resource Type:: Masters Thesis

Development of an Integrated Generator Power Take-of Strategy using Model Predictive Control (MPC) for Ocean Wave Energy Conversion

Creator:: Sundaram, Srinivasan Subhash
Abstract:: Model Predictive Control (MPC) has previously been investigated on ocean waveenergy converters (WEC) to improve the amount of power captured, while respectingthe system constraints. Previous research done in the same area, focused onbuilding a control scheme by using the knowledge of the past & current statesof the system and predicting...
Resource Type:: Masters Thesis

Developing Design Model for Cellulose Nanocomposites

Creator:: Shir Mohammadi, Meisam
Abstract:: Today nano scale materials are being used for wide range of applications. One promising topic in nano scale materials is using them for reinforcement of different polymeric materials to reach desirable stiffness properties. The stiffness of these materials is mostly found experimentally because the nanocomposite community lacks a decent analytical...
Resource Type:: Dissertation

Coverage algorithms for WiFO : a hybrid WiFi-FSO femtocell communication system

Creator:: Zhang, Yang
Abstract:: Coverage algorithms for deployment of WiFO - a hybrid femtocell architecture based on WiFi and Free Space Optical (FSO) technologies are studied to significantly increase wireless throughput of existing WiFi networks. In contrast with existing WiFi networks, WiFO incorporates small cell size, line of sight transmissions, and the Gaussian attenuation...
Resource Type:: Masters Thesis

Practical Application of the Finite Element Method for Vehicle System Loads Analysis

Creator:: Weitzman, Paul M.
Abstract:: This work develops the loads, boundary conditions, and model construction techniques used to create a high-level vehicle analysis model. The loads are derived from the overall performance parameters of the vehicle, which include 3 axis accelerations and aerodynamic forces from Computational Fluid Dynamics outputs. The boundary condition of the analysis...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

Sizing and Performance of the Pendulum Power Take-Off Wave Energy Converter: Modularity and Chaotic Behavior

Autonomous Sensor Systems For Wind Turbine Blade Collision Detection

Wireless Multi-Sensor Patch for Wind Turbine Impact Detection

Development of a Collision Detection Module for Avian and Bat Species on Wind Turbine

Race Car Monocoque Design? A Loaded Question Suspension Kinematics, Loads & Sandwich Panel Optimization Methodologies

Simulation Automation for the Evaluation of Formula Student Aerodynamic Concepts

Field and Numerical Investigation of Pavement Vehicle Interaction Related Excess Fuel Consumption and Delamination

Innovative Strategies to Protect Concrete Bridge Decks and Cross-Laminated Timber Structures through the Use of Impermeable Overlays

Female Mold Fabrication Process Development with Pre-Impregnated Composite Materials for Application to Sub-Orbital Rockets

Real-time Dynamic Schedule Updating Through Integrated Lean Construction Methods

Impacts of Prediction on Wave Energy Converter Control

Adhesive Properties Subject to Variation in Temperature, Thickness, and Working Time

Development of a Reliability-Based Framework and Empirical Models for Justifying Allowable Chloride Limits and Quantifying Critical Input Variables for Predicting the Service Life of Reinforced Concrete Structures

Deep-sea sediment paleomagnetism : a case study from the North Atlantic

Design and Optimization of a 1 kW Hybrid Powertrain for Unmanned Aerial Vehicles

Development of an Integrated Generator Power Take-of Strategy using Model Predictive Control (MPC) for Ocean Wave Energy Conversion

Developing Design Model for Cellulose Nanocomposites

Coverage algorithms for WiFO : a hybrid WiFi-FSO femtocell communication system

Practical Application of the Finite Element Method for Vehicle System Loads Analysis

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