Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 72 for “"Stability and Control"”.
-
Stability and Control in Complex Networks of Dynamical Systems
Stability analysis of networked dynamical systems has been of interest in many disciplines such as biology and physics and chemistry with applications such as LASER cooling and plasma stability. These large networks are often modeled to have a completely random (Erdös-Rényi) or semi-random …
-
Global stability and control of swirling jets and flames
… also known as global hydrodynamic instability. Direct numerical simulation (DNS) of the Navier--Stokes equations in the low Mach number limit is used to obtain a steady base flow, and the most unstable direct and adjoint global modes. These are combined, using a structural sensitivity …
-
On the dynamics, stability and control of displaced lunar orbits
… overcome the limitations of both solar sailing and SEP. Feedback linearisation is used to perform stabilisation and trajectory tracking for the nonlinear system. In addition to a detailed investigation of the dynamics and control of highly NKO, effort will be devoted to develop a strategy that …
-
The stability and control of curved liquid jet break-up
… review of previous works on straight and curved jet break-up is given, with a detailed comparison between experimental investigation and theoretical models, showing the full uses and limitations of the linear and nonlinear models. A local stability analysis has been developed which can …
-
The stability and control of curved liquid jet break-up
… review of previous works on straight and curved jet break-up is given, with a detailed comparison between experimental investigation and theoretical models, showing the full uses and limitations of the linear and nonlinear models. A local stability analysis has been developed which can …
-
Performance, Stability and Control of Electric Short Takeoff and Landing Aircraft
… of a new class of electric super-short takeoff and landing (eSTOL) aircraft, which are fixed wing aircraft designed for sufficiently short runways to make them competitive with vertical flight aircraft. The objectives of this thesis is to examine where in the design space of potential aircraft …
-
Observability and Confidence of Stability and Control Derivatives Determined in Real Time
<p>Stability and control derivatives of an aircraft were estimated from real flight test data in real time. A higher language block diagram library was developed for this purpose. Parameter identification techniques and requirements were used to detect and rate maneuvers present in the data. These …
-
A general linear systems theory on time scales : transforms, stability, and control.
… scale setting by considering Laplace transforms, stability, controllability, and realizability. In particular, we revisit the definition of the Laplace transform by Bohner and Peterson in [10]. We provide sufficient conditions for a given function to be transformable, as well as an inversion …
-
A Study of Chemical Reactor Stability and Control by Liapunov's Direct Method
Made available in DSpace on 2014-12-08T23:18:07Z (GMT). No. of bitstreams: 1 6507074.pdf: 4927084 bytes, checksum: 8b660313219ee4ac45c0b65be6b71b4c (MD5) Previous issue date: 1965
-
Design and Development of Stability and Control Systems for Small, Deployable Aircraft
… UAV. The propulsion system, vehicle size, and stowability requirements present challenges in designing control surfaces with adequate stability and control performance. To satisfy the stowability requirements, the tail was designed with an oblique hinge in which the deployment axis doubles …
-
Voltage Stability and Control in Autonomous Electric Power Systems with Variable Frequency
This work focuses on the safe and stable operation of an autonomous power system interconnecting an AC source with various types of power electronic loads. The stability of these systems is a challenge due to the inherent nonlinearity of the circuits involved. Traditionally, the stability analysis …
-
The directional stability and control of an airplane during the landing roll
… considers the problem of the directional instability, as exhibited by aircraft with tricycle landing gear, during the landing roll after touchdown. The approximate equations of motion are solved on an analog computer to describe the motion of an aircraft as it moves along the runway after it …
-
An investigation of the dynamic lateral stability and control of a parawing vehicle
… may have unusual values of many of the mass and aerodynamic factors affecting dynamic lateral stability and control. These unusual characteristics are due in large part to the fact that the center of gravity of parawing vehicles is located far below the parawing, whereas conventional aircraft …
-
Determination of Stability and Control Derivatives for a Modern Light Composite Twin Engine Airplane
<p>To develop and compare full envelope stability and control derivatives and their associated errors for a modern light composite twin engine airplane from flight test data and digital DATCOM (Data Compendium). This development is to serve three purposes 1) to provide data for validation of newer …
-
A multiple scales approach to the stability and control of a hypersonic re-entry glider
… Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
-
Vibration and Aeroelasticity of Advanced Aircraft Wings Modeled as Thin-Walled Beams--Dynamics, Stability and Control
… thin-walled beam model, aeroelastic instability, dynamic aeroelastic response, active/passive aeroelastic control of advanced aircraft wings modeled as thin-walled beams are systematically addressed. The refined thin-walled beam model is based on an existing framework of the thin-walled …
-
Longitudinal stability and control analysis and parameter sensitivity investigation of fixed wing aircraft in ground proximity using various aerodynamic approaches
The investigation of the stability of longitudinal motion of fixed wing aircraft in ground proximity presented here focuses on rectangular wing and tail configurations similar to that of the Piper Cherokee PA-28-180. The majority of our results pertain to the height range down to one quarter of the …
Page 1 of 4