Here is a recent book chapter I wrote that is available for download free of charge. http://mts.intechopen.com/articles/show/title/analysis-and-control-of-nonlinear-attitude-motion-of-gravity-gradient-stabilized-spacecraft-via-lyapRead more "Book Chapter-Analysis and Control of Nonlinear Attitude Motion of Gravity-Gradient Stabilized Spacecraft via Lyapunov-Floquet Transformation and Normal Forms"
In this new article, we present a straightforward approach to accomplish model order reduction on the invariant center manifold for large-dimensional nonlinear systems subjected to external periodic excitations. This relatively plain and direct approach is applicable to both parametrically excited and constant coefficient nonlinear systems. Our approach is powerful because it is liberated from typical […]Read more "Center Manifold Reduction of Nonlinear Dynamics With External Periodic Excitations"
In my latest article, we present a powerful direct approach to simplify complexly structured nonlinear systems with external periodic excitation via normal forms. This approach is liberated from special treatment of nonlinear systems such as ‘book-keeping’ parameters, detuning parameters etc. It does not mandate the system to be minimally excited and the system may possess […]Read more "Simplifying Nonlinear Systems With External Periodic Excitation"
In my latest journal article I have a mouthwatering treat in; gravity gradient attitude stabilization, periodic nonlinear spacecraft attitude dynamics, Chebyshev polynomials, Hopf bifurcation, sliding mode control, Lyapunov-Floquet transformation, Normal Forms, system state augmentation etc. The article titled ” Control of Nonlinear Spacecraft Attitude Motion via State Augmentation, Lyapunov-Floquet Transformation and Normal Forms ” is […]Read more "Control of nonlinear spacecraft attitude dynamics"
#RIPCalestousRead more "Prof. Calestous Juma"
This is a research article I co-authored as part of the Harvard University Kennedy School of Government Research Working Paper Series . It focuses on the theme of Space Technology for Sustainable Development and the unique role played by small satellites. https://www.hks.harvard.edu/publications/space-technology-and-africas-development-strategic-role-small-satellitesRead more "Space Technology and Africa’s Development: The Strategic Role of Small Satellites."