Rotor non-trial-weight dynamic balancing method suitable for distributed unbalance

The invention discloses a rotor non-trial-weight dynamic balancing method suitable for distributed unbalance. The method includes the steps that firstly, on the basis of an established rotor finite element dynamic model, correction of the dynamic model is achieved through experiments and simulation, and then finite element node stress is used for describing the distributed unbalance of a rotor; secondly, dimensions of a dynamic transfer matrix in a describing equation of the distributed unbalance are extended through increase of the test rotating speed, reversibility of the transfer matrix is achieved, and then solution of the distributed unbalance is achieved through matrix inverse operation; finally, precise dynamic balance of the rotor is achieved through a concentrated correction method of the distributed unbalance. According to the rotor non-trial-weight dynamic balancing method suitable for the distributed unbalance, the distributed unbalance can be recognized integrally, and the dynamic balance precision is improved; no test weight is needed in the dynamic balance process, dynamic balance can be completed with the only requirement that the speed is lower than a critical rotating speed, safety of dynamic balance operation is guaranteed, and the requirements of the high-speed rotor are met; the dynamic balance process is concise, and automatic control of computers is achieved conveniently.