The invention provides a
spinning speed control method for a space flexible electric sail, belongs to a field of electric sails and specifically relates to the
spinning speed control method for the space flexible electric sail. The method includes steps of 1, establishing a
large deformation dynamics model of a flexible
rope based on an absolute node coordinate method, determining unit nodes, deducing a constant quality matrix and generalized elastic force in a
reference configuration; 2, establishing a central
rigid body dynamics model, establishing a 1-DOF (Degree Of Freedom) constraint
algebraic equation for a central rotation constraint pair, establishing a 3-DOF constraint
algebraic equation for a connection spherical hinge of the flexible
rope and the central
rigid body; 3, performing stress analysis on the flexible
rope and calculating the flexible rope rotation angle acceleration in a
dynamic balance state; 4, selecting a control variant and designing speed control rate according to stress analysis and obtaining a speed
control torque needed to output by the central
rigid body through calculation. The invention solves a problem that speed control of a flexible rope spinningmulti-
body system of the flexible sail cannot be realized and can be applied to an electric sail
control system.