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 5 of 5 for “"Constrained dynamics"”.
-
Constrained dynamics and higher derivative systems in modified gravity
In this thesis, higher derivative theories and constrained dynamics are investigated in detail. In the first part of the thesis, we discuss how the Ostrogradski instability emerges in non-degenerate higher derivative theories in the context of a one-dimensional point particle where the position of …
-
Parallel computational methods for constrained mechanical systems
… accuracy and further reduce computational cost. Constrained dynamics problems are also solved using optimization methods by applying Gauss' principle directly. An objective function that incorporates constraints is derived using a symmetric scheme, which is implemented using genetic algorithms in …
-
Guaranteed avoidance of unpredictable, dynamically constrained obstacles using velocity obstacle sets
… with respect to moving obstacles that have constrained dynamics but move unpredictably. Velocity Obstacles have been widely used to plan trajectories that avoid collisions with obstacles under the assumption that the path of the objects are either known or can be accurately predicted ahead …
-
Constrained Motion Analysis of Spacecraft Trajectory in Restricted Three Body Problem
… the Udwadia-Kalaba (UK) formulation of constrained dynamics as applied to the restricted three-body problem of the Sun-Earth-Spacecraft. A dynamic model of the restricted three-body system is presented to analyze the unconstrained motion of spacecraft. The results show the instability …
-
Trajectory bundle estimation For perception-driven planning
… for ensuring the safety of vehicles with constrained dynamics. In general, the faster a vehicle moves, the more constrained its dynamics become due to acceleration limits imposed by its actuators. This means that the speed at which an autonomous agent can safely travel is often governed by …