A Study Of The Reduction Of Excessive Energy Generated By Strong Winds On Power Lines Via A Velocity Damping Controller At The Transmission Tower, 2017 Kent State University - Kent Campus
A Study Of The Reduction Of Excessive Energy Generated By Strong Winds On Power Lines Via A Velocity Damping Controller At The Transmission Tower, Donald W. Fincher Jr.
Undergraduate Research Symposium
In this research, we are pursuing the robustness of a self-excited vibrational system with negative damping. In practice, this is manifested as conductor galloping of overhead power lines, which is an oscillation of the lines caused by strong winds. Improved transmission tower designs are needed which are capable of combating excessive stresses exerted on the tower by the galloping power lines. Our model of this self-excited system shows that the oscillations can be controlled by adding a boundary velocity feedback controller at the transmission tower. Using a decomposition method, we show there is a closed form analytical solution which predicts ...
P26. Global Exponential Stabilization On So(3), 2017 firstname.lastname@example.org
P26. Global Exponential Stabilization On So(3), Soulaimane Berkane
Western Research Forum
Global Exponential Stabilization on SO(3)
Indoor Mapping Drone, 2017 The University of Akron
Indoor Mapping Drone, Benjamin J. Plevny, Andrew Armstrong, Miguel Lopez, Davidson Okpara
Honors Research Projects
This project addresses the need for an autonomous indoor mapping system that will create a 3D map of an unknown physical environment in real time. The aerial system moves and avoids obstacles autonomously, without the need for human remote control or observation. An aerial system produces a map of an unknown indoor environment by transmitting data received from the aerial device’s sensors. The transmission occurs over a wireless channel from the aerial device to a remote server for processing and storage of the data. As the transmission is done in real time, the aerial system does not require hardware ...
Process Control Laboratory Skid Refurbishment, 2017 The University of Akron
Process Control Laboratory Skid Refurbishment, Danny Crowder
Honors Research Projects
This project evaluates a salvaged process control skid for potential refurbishment and educational re-use. In-lab work evaluated the existing skid. Several process control elements have been recommended for replacement, including the process tank (due to corrosion), the pressure transmitter (operability/corrosion), the flow meters (mechanical) and the control system (age). The control valves, temperature elements and transmitters, pump, holding tanks, and the electrical heat exchanger should be salvaged. An I/P converter and pressure relief valve should be added to the pneumatic feed. Enclosing of all electrical components should be prioritized. An electrical schematic for a new control system should ...
Contributions To Edge Computing, 2017 University of Kentucky
Contributions To Edge Computing, Vernon K. Bumgardner
Theses and Dissertations--Computer Science
Efforts related to Internet of Things (IoT), Cyber-Physical Systems (CPS), Machine to Machine (M2M) technologies, Industrial Internet, and Smart Cities aim to improve society through the coordination of distributed devices and analysis of resulting data. By the year 2020 there will be an estimated 50 billion network connected devices globally and 43 trillion gigabytes of electronic data. Current practices of moving data directly from end-devices to remote and potentially distant cloud computing services will not be sufficient to manage future device and data growth.
Edge Computing is the migration of computational functionality to sources of data generation. The importance of ...
Underwater Robot, 2017 The University of Akron
Underwater Robot, Joseph E. Beck, Matthew Crislip, Cody Bobek, Peyton Lucas
Honors Research Projects
Remotely Operated Vehicles (ROVs) are remote controlled drones operated by a non-local user. The ROV we plan to build is connected by a tethering wire to a floating buoy that contains an antenna which will send signals between the base station and the ROV. The ROV is equipped with a video camera, ballast system, propulsion system, lights, and a depth sensor. The ROV will transmit a live video feed to the user, while receiving input signals to control its movement from the base station.
Real-Time Sensing And Control Of Developing Weld Penetration Through Reflection Vibration In Gtaw, 2017 University of Kentucky
Real-Time Sensing And Control Of Developing Weld Penetration Through Reflection Vibration In Gtaw, Jinsong Chen
Theses and Dissertations--Electrical and Computer Engineering
GTAW (Gas Tungsten Arc Welding) weld pool surface is believed to contain sufficient information to determine the weld penetration, from which skilled welders are able to control the welding process to desired penetration states. However, it is unclear how human welders extract the weld penetration from the observed weld pool surface. In this research, a novel method is studied to determine the weld penetration based on the dynamic change of the weld pool surface.
This study observes/measures/analyzes the development of a weld pool from partial to full penetration and correlates such change to the weld penetration. Similar trends ...
Active Management Assistant System For Embry-Riddle Ecocar 3 Hybrid Supervisory Control System, 2016 Embry-Riddle Aeronautical University
Active Management Assistant System For Embry-Riddle Ecocar 3 Hybrid Supervisory Control System, Matthew Nelson, Blair Cutting, Michael J. Aleardi
The Embry-Riddle EcoCAR 3 team is developing a prototype hybrid Chevrolet Camaro utilizing a customized vehicle powertrain controller. This controller is serving to ensure system safety, vehicle operation, and consumer drivability while also incorporating advanced driving aids to achieve both the desired performance levels one expects from a Camaro as well as vehicle efficiency. This vehicle must reach the team set vehicle technical specifications of a 4.9 second 0 to 60 time while maintaining a 53 miles per gallon gasoline equivalence rating.
In order to reach the efficiency goal, the team is developing an Active Management Assistance System utilizing ...
Investigation Of Model Predictive Control (Mpc) For Steam Generator Level Control In Nuclear Power Plants, 2016 The University of Western Ontario
Investigation Of Model Predictive Control (Mpc) For Steam Generator Level Control In Nuclear Power Plants, Ahmad Taemiriosgouee
Electronic Thesis and Dissertation Repository
The capabilities and potential of Model Predictive Control (MPC) based strategies for steam generator level (SGL) controls in nuclear power plants (NPPs) have been investigated. The performance has been evaluated for all operating conditions that also include start-ups, low power operations and load rejections. These evaluations have been done for MPC controllers based on existing advanced methodologies, as well as for any potential performance improvement that can be achieved by fine tuning some of the parameters (based on the characteristics of the SGL) of the existing MPC approaches.
Two version of MPC have been designed and implemented. The Standard MPC ...
Development Of Instrumentation And Control Systems For An Integral Large Scale Pressurized Water Reactor, 2016 University of Tennessee, Knoxville
Development Of Instrumentation And Control Systems For An Integral Large Scale Pressurized Water Reactor, Matthew Rowland Morrow Lish
Small and large scale integral light water reactors are being developed to supply electrical power and to meet the needs of process heat, primarily for water desalination. This dissertation research focuses on the instrumentation and control of a large integral inherently safe light water reactor (designated as I2S-LWR) which is being designed as part of a grant by the U.S. Department of Energy Integrated Research Project (IRP). This 969 MWe integral pressurized water reactor (PWR) incorporates as many passive safety features as possible while maintaining competitive costs with current light water reactors. In support of this work ...
Data Predictive Control For Peak Power Reduction, 2016 University of Pennsylvania
Data Predictive Control For Peak Power Reduction, Achin Jain, Madhur Behl, Rahul Mangharam
Real-Time and Embedded Systems Lab (mLAB)
Decisions on how best to optimize today's energy systems operations are becoming ever so complex and conflicting such that model-based predictive control algorithms must play a key role. However, learning dynamical models of energy consuming systems such as buildings, using grey/white box approaches is very cost and time prohibitive due to its complexity. This paper presents data-driven methods for making control-oriented model for peak power reduction in buildings. Specifically, a data predictive control with regression trees (DPCRT) algorithm, is presented. DPCRT is a finite receding horizon method, using which the building operator can optimally trade off peak power ...
Reconstruction Of In-Plane Strain Maps Using Hybrid Dense Sensor Network Composed Of Sensing Skin, 2016 Iowa State University
Reconstruction Of In-Plane Strain Maps Using Hybrid Dense Sensor Network Composed Of Sensing Skin, Austin R.J. Downey, Simon Laflamme, Filippo Ubertini
Civil, Construction and Environmental Engineering Publications
The authors have recently developed a soft-elastomeric capacitive (SEC)-based thin film sensor for monitoring strain on mesosurfaces. Arranged in a network configuration, the sensing system is analogous to a biological skin, where local strain can be monitored over a global area. Under plane stress conditions, the sensor output contains the additive measurement of the two principal strain components over the monitored surface. In applications where the evaluation of strain maps is useful, in structural health monitoring for instance, such signal must be decomposed into linear strain components along orthogonal directions. Previous work has led to an algorithm that enabled ...
Robust Feedback Control Based On Low Order Models With Uncertainty Estimation For A Class Of Biomedical Problems, 2016 Universidad Autonoma Metropolitana
Robust Feedback Control Based On Low Order Models With Uncertainty Estimation For A Class Of Biomedical Problems, Hector Puebla, Miguel A. Gutierrez-Limon, Eliseo Hernandez-Martinez, Alejandra Velasco-Perez
Annual Symposium on Biomathematics and Ecology: Education and Research
No abstract provided.
Synchronization Of Coupled Neurons Via Robust Feedback, 2016 Universidad Autonoma Metropolitana
Synchronization Of Coupled Neurons Via Robust Feedback, Hector Puebla, Ricardo Aguilar-Lopez, Priti Kumar Roy
Annual Symposium on Biomathematics and Ecology: Education and Research
No abstract provided.
On The Characterization And Parametrization Of Strong Linearizations Of Polynomial Matrices, 2016 Alexander Technological Education Institute of Thessaloniki
On The Characterization And Parametrization Of Strong Linearizations Of Polynomial Matrices, Efstathios Antoniou, Stavros Vologiannidis
Electronic Journal of Linear Algebra
In the present note, a new characterization of strong linearizations, corresponding to a given regular polynomial matrix, is presented. A linearization of a regular polynomial matrix is a matrix pencil which captures the finite spectral structure of the original matrix, while a strong linearization is one incorporating its structure at infinity along with the finite one. In this respect, linearizations serve as a tool for the study of spectral problems where polynomial matrices are involved. In view of their applications, many linearization techniques have been developed by several authors in the recent years. In this note, a unifying approach is ...
Performance-Robust Dynamic Feedback Control Of Lipschitz Nonlinear Systems, 2016 Marquette University
Performance-Robust Dynamic Feedback Control Of Lipschitz Nonlinear Systems, Winston Baker
Dissertations (2009 -)
This dissertation addresses the dynamic control of nonlinear systems with finite energy noise in the state and measurement equations. Regional eigenvalue assignment (REA) is used to ensure that the state estimate error is driven to zero significantly faster than the state itself. Moreover, the controller is designed for the resulting closed loop system to achieve any one of a set of general performance criteria (GPC). The nonlinear model is assumed to have a Lipschitz nonlinearity both in the state and measurement equations. By using the norm bound of the nonlinearity, the controller is designed to be robust against all nonlinearities ...
Control System Research And Development To Support Virtual Prototyping Of Pump And Motors, 2016 Purdue University
Control System Research And Development To Support Virtual Prototyping Of Pump And Motors, Rajith Weerasinghe, Monika Ivantysynova, Paul Kalbfleisch
The Summer Undergraduate Research Fellowship (SURF) Symposium
Virtual prototyping of positive pumps and motors is incredibly useful, increasing speed of development and lowering cost. The calculations of fluids discharge pressure, displaced by a swashplate-type-axial piston pump/motor is dependent on the load impedance driven by the unit. The load impedance is estimated by a variable orifice found downstream of the unit. Similarly, the suction line impedance is also estimated with an orifice. The current project aims to evaluate the various loading architectures in their ability to quickly and accurately create the desired impedance. The robustness of the loading architectures was tested on a wide range of pump ...
Optimization-Free Optical Focal Field Engineering Through Reversing The Radiation Pattern From A Uniform Line Source, Yanzhong Yu, Qiwen Zhan
A simple and flexible method is presented for the generation of optical focal field with prescribed characteristics. By reversing the field pattern radiated from a uniform line source, for which the electric current is constant along its extent, situated at the focus of a 4Pi focusing system formed by two confocal high-NA objective lenses, the required illumination distribution at the pupil plane for creating optical focal field with desired properties can be obtained. Numerical example shows that an arbitrary length optical needle with extremely high longitudinal polarization purity and consistent transverse size of ~0.36λ over the entire depth of ...
Tailoring Optical Complex Fields With Nano-Metallic Surfaces, 2016 University of Dayton
Tailoring Optical Complex Fields With Nano-Metallic Surfaces, Guanghao Rui, Qiwen Zhan
Recently there is an increasing interest in complex optical fields with spatially inhomogeneous state of polarizations and optical singularities. Novel effects and phenomena have been predicted and observed for light beams with these unconventional states. Nanostructured metallic thin film offers unique opportunities to generate, manipulate and detect these novel fields. Strong interactions between nano-metallic surfaces and complex optical fields enable the development of highly compact and versatile functional devices and systems. In this review, we first briefly summarize the recent developments in complex optical fields. Various nano-metallic surface designs that can produce and manipulate complex optical fields with tailored characteristics ...
Creation Of Identical Multiple Focal Spots With Prescribed Axial Distribution, 2016 University of Dayton
Creation Of Identical Multiple Focal Spots With Prescribed Axial Distribution, Yanzhong Yu, Qiwen Zhan
We present a scheme for the construction of coaxially equidistant multiple focal spots with identical intensity profiles for each individual focus and a predetermined number and spacing. To achieve this, the radiation field from an antenna is reversed and then gathered by high numerical aperture objective lenses. Radiation patterns from three types of line sources, i.e., the electric current, magnetic current and electromagnetic current distributions, with cosine-squared taper are respectively employed to generate predominately longitudinally polarized bright spots, azimuthally polarized doughnuts, and focal spots with a perfect spherically symmetric intensity distribution. The required illuminations at the pupil plane of ...