This invention discloses a method for designing the ballistic
safety margin of a
launch vehicle based on
calibration test parameters, including: estimating the maximum
safety margin x of the cluster stage. 01 ; in [0, x 01 Within the interval, values are taken at equal intervals to obtain a set of
safety margin values for the cluster-binding stage; the reference
ballistics corresponding to each safety margin value of the cluster-binding stage are obtained, and target
simulation is performed based on the reference
ballistics to determine the optimal value of the safety margin value of the cluster-binding stage; the maximum safety margin x of the second stage is estimated. 02 ; in [0, x 02 Within the specified interval, values are taken at equal intervals to obtain a set of secondary safety margin values. Based on the optimal values of the cluster-type
launch vehicle safety margin obtained in step S3, the reference trajectory corresponding to each secondary safety margin value is obtained. Target
simulation is performed based on the reference trajectory to determine the optimal values of the secondary safety margins, and thus obtain the optimal values of the
tertiary safety margins. This invention enables the optimal allocation of safety margins at each stage of a cluster-type
launch vehicle, maximizing its
carrying capacity.