Analysis and implementation of the separation trajectory equations of different launch environments

For settling problems about launch equations of separation in different launch environments, the separation trajectory equations were established based on mass conversation, energy conversation, motion functions, state functions and many complex resistance constructed trajectory equations, and compiled simulation software about grand-water and air launch which can realized multi-parameter input, multitarget bias and visualization output. Result showed that simulation system according with reality and can use in field of gas generator, this software have strong background of engineering application. This production can strongly support to shorten designation cycle of launch system.