A comparative study of the robustness of various spacecraft body at t i tude control systems with structural flexibility is presented in this paper. The control systems examined are: (a) 3-Reaction Wheels (b) Body-fixed momentum wheel with offset thrusters (c) Skewed body-fixed momentum wheels with offset thrusters and (d) Body-fixed momentum wheel with two reaction wheels. For the size of larg...

Future spaceflight missions will require the use of distributed satellite systems, where multiple spacecraft must work in concert to manipulate, assemble, service, or function as a cohesive unit. Such spacecraft architectures must be able to capitalize on the resources of the system as a whole. Resource Aggregated Reconfigurable Control (RARC) techniques will enable satellites to control flexib...

We consider the control of a dual rigid-body spacecraft consisting of a bus and an appendage joined by a torsional and bending spring. The actuators are located on the spacecraft bus, whereas measurements are obtained from sensors on the appendage. This problem is challenging due to the flexible connection between the base body and the appendage as well as the noncolocation between actuation an...

D eep space presents numerous hazards and harsh conditions for remote exploration missions, which must often operate autonomously without intervention from Earth. To increase the survivability of the remote missions, NASA is exploiting principles and techniques that help such systems become more resilient through selfmanagement and automatic adaptation. By adhering to the principles of autonomi...

We present a general methodology for the nonlinear dynamical modeling of three-axis stabilized spacecraft equipped with flexible solar arrays. The large-span multi-panel arrays are modeled as thin plates that connected to rigid central body by means hinges. construct low-dimensional yet accurate model using Galerkin expansion in terms global modes system we compute first Rayleigh–Ritz method. h...

This paper addresses the problem of uncertain fuzzy intermittent extended dissipative control to stabilize flexible spacecraft (FS). However, systems with actuator random failures, input saturation and Bernoulli stochastic distribution by utilizing a novel switching Lyapunov function method. Compared existing common Lyapuonv function, proposed approach is convenient for us exploit more informat...