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A probabilistic model for fatigue damage accumulation in composite laminates
(1993)
A stochastic model for the accumulation of fatigue damage in composite laminates is proposed. The model considers the accumulation of fatigue damage as an evolutionary stochastic process and attempts to predict the ...
Nanocomposite Material Properties Estimation and Fracture Analysis via Peridynamics and Monte Carlo Simulation
(2015-04-23)
This thesis presents a numerical model for the estimation of nanocomposite material properties and fracture analysis. A non-uniform peridynamic grid is utilized to simulate the nanocomposites along with Monte Carlo ...
Vision Navigation Performance for Autonomous Orbital Rendezvous and Docking
(2015-04-23)
This thesis demonstrates the potential of performing orbital rendezvous and docking using vision navigation. The vision navigation algorithm tracks both known and unknown target features to determine the relative position ...
An engineering approach for estimating seismic power spectra
(1992)
The aseismic design of large structures may need to account for the nonstationary and the multivariate aspects of strong ground motions. These aspects influence both the time and the spatial variation of the dynamic response ...
Wavelet-based excitation representation and response determination of linear and nonlinear systems
(2002)
The dissertation determines the evolutionary spectrum of non-stationary stochastic processes and describes the time-varying characteristics of the response of linear and nonlinear dynamic systems subject to non-stationary ...
A stochastic approach for estimating fatigue life of equipment located at topside of FPSO offshore systems
(2002)
Floating Production, Storage and Offloading (FPSO) Systems are subjected to stochastic wave loads. In this context, an approach for stochastic fatigue analysis of FPSO topside equipment is developed. Proper FPSO transfer ...
Stochastic fatigue analysis of FPSO topside structures with linear and nonlinear supports
(2008)
Floating Production, Storage, and Offloading (FPSO) Systems are quite often subjected to stochastic sea wave loadings. In this thesis, a methodology is developed for estimating the fatigue life of topside structures. Proper ...
Autonomous optical navigation for lunar missions
(2009)
Four measurement options for Orion autonomous optical lunar navigation are analyzed using linear covariance analysis methods. The measurements include a feature tracking camera measurement, star landmark elevation measurement, ...
Entry guidance for human lunar return vehicles with low lift-to-drag ratios
(2010)
During the entry phase of a human lunar mission, an entry guidance algorithm is used to safely steer the return vehicle through the atmosphere to a target landing site. The PredGuid entry guidance algorithm is enhanced to ...
Iterative determination of spar lines static equilibrium and improved dynamic modeling by fractional derivatives
(2009)
Polyester mooring systems are used as permanent systems of floating production systems and offshore structures. Compared to other mooring systems, polyester has a highly non linear behavior, thus complicating the overall ...