Browsing by Thesis Advisor "Fales, Roger"
Now showing items 21-34 of 34
-
A method of frequency domain error modeling to predict the probability of stability and performance of dynamic systems with parametric uncertainty
(University of Missouri--Columbia, 2012)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] In this work a method is developed for modeling frequency domain error in dynamic systems with parametric uncertainty. Within any mass-manufactured ... -
Modeling and control of arterial oxygen saturation in premature infants
(University of Missouri--Columbia, 2011)In this work modeling and control of neonatal infant's blood oxygen saturation (SpO2) is investigated. Through analyzing the biological system, it was shown that the blood is oxygenated through the mechanisms of ventilation, ... -
Modeling, design and control of forced-feedback metering poppet valve system
(University of Missouri--Columbia, 2006)This research explores valve design, dynamic modeling, and techniques to achieve flow control for a forced-feedback metering poppet valve system. In particular, nonlinear and linear models of a forced feedback configuration ... -
Modeling, simulation, and stability of a hydraulic load-sensing pump system with investigation of a hard nonlinearity in the pump displacement control system
(University of Missouri--Columbia, 2014)Certain types of Load-Sensing (LS) pumps utilize a hydro-mechanical control system designed to regulate the pressure difference, or margin pressure, between the inlet and outlet of a flow control valve. With a constant ... -
Modern control design for a variable displacement hydraulic pump
(University of Missouri--Columbia, 2006)In this work modern control methods are used to design and analyze control methods for a variable-displacement hydraulic pump. More accurate uncertainty descriptions are derived by using a structured uncertainty model as ... -
Mu-synthesis controller design for temperature control of a solar steam gasifier with uncertainty modeling and robust analysis
(University of Missouri--Columbia, 2015)Gasifiers operate by inputting a carbon rich material, water, and heat into a reactor core to cause a chemical reaction to produce a desired chemical composition output. For this work, a unique hybrid allothermal/autothermal ... -
New tool design for measuring tool displacement in milling
(University of Missouri--Columbia, 2012)Monitoring tool displacement during a milling process allows the operator to identify when there is relative movement between the cutting tool and the workpiece. When the relative movement between the cutting tool and the ... -
Nonlinear control and active damping of a forced-feedback metering poppet valve
(University of Missouri--Columbia, 2007)For a metering poppet valve which was developed at the University of Missouri (MU valve), the valve can be configured for performance at the cost of stability. It is desirable to achieve both performance and stability using ... -
Parameterized uncertainty model using a genetic algorithm with application to an electro-hydraulic valve control system.
(University of Missouri--Columbia, 2016)Uncertainties in the mechanical system severely increase the complexity of the system. Present the uncertainties can be parameterized by listing the coefficient from the transfer function. The attempt to reduce the ... -
Parameterized uncertainty modeling applied to the oxygen control of neonates with lung disease
(University of Missouri--Columbia, 2018)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Premature infants born in a hospital's Neonatal Intensive Care Unit (NICU) commonly have underdeveloped lungs which is a cause of Respiratory Distress ... -
Polynomial system identification modeling and adaptive model predictive control of arterial oxygen saturation in premature infants
(University of Missouri--Columbia, 2020)The automation of the regulation of the fraction of inspired oxygen (FiO2) in neonatal mechanical ventilation to treat respiratory distress syndrome has proven challenging due to competing objectives: maintaining arterial ... -
Robust control design for a proportional valve with backlash compensation
(University of Missouri--Columbia, 2013)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] In this work, a linear technique is used to study the stability of a nonlinear system. Most of dynamic systems in industrial and fluid power systems ... -
Validation of a micro-controller for oxygen control in the NICU
(University of Missouri--Columbia, 2023)[EMBARGOED UNTIL 5/1/2024] Respiratory support is required for premature infants who are born with underdeveloped lungs and insufficient surfactant production, which is the cause of respiratory distress syndrome (RDS). The ... -
Work cycle efficiency for a hydrostatic machine
(University of Missouri--Columbia, 2015)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] If the hydraulic Pump and motor are connected together through hydraulic hoses, the system is called a hydrostatic transmission or a hydrostatic drive. ...