Design method of excitation signal for parameter identification of machine tool feeding system

The invention belongs to the related technical field of excitation signal design, and discloses a design method of an excitation signal for parameter identification of a machine tool feeding system, and the method comprises the steps: building a feeding model of the machine tool feeding system, determining the type and the value range of a to-be-identified parameter, selecting a standard parameter in the value range, and determining the type of the to-be-identified parameter; different types of candidate excitation signals are designed; inputting the standard parameters into the feeding model to obtain a standard simulation result; selecting a parameter initial value in the value range, and performing parameter expansion to generate a value set; respectively inputting each value in the value set into the feeding model to obtain a corresponding simulation result, and calculating a simulation error between the simulation result and a standard simulation result; calculating the sensitivity of the parameters; and