Dynamic analysis method for friction torque of drill string, computer equipment and storage medium

The invention provides a drill string friction torque dynamic analysis method, computer equipment and a storage medium. The method comprises the steps that well bore parameters, drill string basic parameters and drilling parameters are obtained; establishing a full-well dynamic model; establishing a drill string system finite element numerical model; aiming at simulated working conditions, giving physical attributes to the finite element numerical model, defining boundary conditions of a service drill string, and obtaining a drill string system analysis model; and carrying out nonlinear dynamic instantaneous response calculation on the drill string system analysis model, and calculating the friction torque borne by the drill string. The computer equipment comprises a processor, instructions used for executing the method are stored, and the program instructions are executed by the processor. The storage medium stores computer program instructions for implementing the method when the computer program instructio