Research on brittle risk entropy function of complex system

Some certain chanciness existed in the coal accidents can result in the gas explosion. In this paper, brittle theory and entropy theory are suggested, and the brittle risk entropy function is deduced through the probability of the accident occurrence, grave consequence of system collapse, and uncontrollable degree of factors; meanwhile, characters of risk entropy function are discussed. According to the property of entropy, we have the control strategy. And we define the module of factors, according to the module magnitude of factor, we choose the factor to eliminate. Finally, the probability entropy function is taken as example, and the entropy value of accident system is controlled successfully according to the controlled strategy.