Method for analyzing motion stability of industrial robot in future open factory environment

The invention discloses an industrial robot motion stability analysis method in a future factory open environment. Comprising the following steps that multi-source uncertainty parameters existing in an industrial robot in an open environment are considered, an industrial robot movement speed deviation function is constructed, and a failure probability representation model of an industrial robot movement stability index is established; calculating a fractional exponential moment target value of the motion speed deviation function of the industrial robot by adopting a sparse grid method; and a mixed probability distribution model containing unknown parameters is established, the unknown parameters of the mixed probability distribution model are solved by adopting a Bayesian sequence updating method, the mixed probability distribution model is corrected, and finally the motion stability index of the industrial robot is calculated. According to the industrial robot motion stability analysis method provided by the