Nonlinear modeling of slewing flexible structures: ideal and non ideal approaches

Revisiting the Nonlinear Dynamics Behavior,Control Designs and Insights on Fluid Interactions of a Flexible Slewing Spatial Structures and their Applications to Engineering Science

“…We remrked that little effort has been focused on DC motor -structure interaction which affects the dynamic properties of the slewing system,obviuosly.DC motors used in these applications are popular actuators not only because they can generate a wide range of torques and angular velocities, but also because they are quiet, clean and efficient.In the study with these kind of rotating structures, the interaction between the angular displacement also called slewing angle, and the flexible structure deflection variable can be very important in some cases, as in high angular speed maneuvers [5,6,7,8,9,10].…”

“…This interaction plays an important role as the fluid dissipates kinetic energy of the motion. The Fig 3, illustrates the slewing flexible beam system interacting with a fluid [8,9] the torque applied to the shaft by the motor, The system under investigation is presented and its geometric models (as proposed here) is presented and possible to apply them to several problems, such as lightweight robotic manipulators, solar panels and antennas in satellites, helicopter blades and so on.…”