Design method of beam with adjustable load

The invention belongs to the technical field of aircraft structure design, and relates to a design method of a load-adjustable beam, which comprises the following steps: determining the length of a beam web through the constraint relationship between the endpoint load of the beam and the geometric dimension of the beam, and then determining the constraint relationship between the axial pressure load of the beam and the section length of a beam edge strip according to the geometric dimension of the beam and the endpoint load of the beam; according to the Euler's formula and the axial load of the beam edge strip, the constraint relation among the inertia moment of the beam edge strip, the axial load and the number of segments of the beam edge strip is obtained, the number of the segments of the beam edge strip and the number of the segments of the beam web are obtained by substituting standard parameters under typical conditions, and the length of the section of the beam edge strip is finally obtained. The stru