Evaluation method for generating three-way tail end torque capability of shield propulsion system in different pose states

The invention relates to a method for evaluating the ability of a shield propulsion system to generate three-way end torque in different pose states, which comprises the following steps of: acquiring pose information in a shield tunneling process, and determining a shield pose matrix; determining a hydraulic oil cylinder front spherical hinge position vector according to a shield propulsion system hydraulic oil cylinder distribution form; constructing a shield tunneling machine mechanical model; establishing a shield propulsion system static transfer equation; solving a tail end output generalized force vector; establishing a tail end torque ellipsoid equation of the shield propulsion system; and drawing a tail end torque ellipsoid of the shield propulsion system, and evaluating the capability of the shield propulsion system for generating the three-way tail end torque. According to the evaluation method provided by the invention, the capability of generating the tail end torque in each direction by adjusting