Combined balancing method applied to tumbling body rocket body structure

The invention relates to a combined balancing method applied to a tumbling body rocket body structure. The combined balancing method comprises the following steps of firstly, establishing a yoz coordinate system by using a circle center of any rocket body section as an origin of coordinates, and any two mutually vertical diameters of the rocket body section as a y axis and a z axis; then obtaining the traversing coordinates of a rocket body centroid in the coordinate system; when an abutting hole corresponding to the traversing coordinates conforms to mounting conditions, calculating out the mass of a single balancing block, and when the abutting hole corresponding to the traversing coordinates does not conform to the mounting conditions, calculating out the mass of the distributed balancing blocks; and finally combining balancing counterweights so as to obtain the balancing blocks of the corresponding mass and corresponding number, and completing centroid balancing through fastening of fastening pieces. According to the combined balancing method disclosed by the invention, the balancing blocks are mounted and fastened by one or more abutting holes in an annular frame of the tumbling body rocket body, so that the defects that in a conventional technology, a hole is additionally formed in the rocket body structure or a mounting hole is reserved in the rocket body structure are overcome, the product quality of rocket bodies is guaranteed, and the combined balancing method disclosed by the invention has good balancing efficiency and good adaptability.