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为了保障高风险系统的使用安全性,探索事故的运动规律与应急决策,提出了面向事故过程的安全性仿真方法,并结合有限状态机原理与Stateflow技术设计了建模方法与仿真机制,该方法能实现混合系统过程状态逻辑与连续机理的建模与仿真,仿真结果能反映事故发展过程中系统的状态-时间特性、人机交互特性以及过程机理,为应急决策提供定量的依据.最后,对某产品实例的事故过程进行了模型设计与仿真实验,验证了该仿真方法的有效性与合理性.
In order to ensure the safety of high-risk system and to explore the law of accident and emergency decision-making, a safety simulation method for accident process is proposed. The modeling method and simulation mechanism are designed with the principle of finite state machine and Stateflow technology. Can realize the modeling and simulation of process logic and continuous mechanism of hybrid system, and the simulation results can reflect the state-time characteristics, human-computer interaction characteristics and process mechanism of the system during the accident development, and provide a quantitative basis for emergency decision.Finally, The accident process of a product instance is modeled and simulated experimentally, which verifies the validity and rationality of this simulation method.