摘要
以耗散结构的维持与演化作为安全系统运行机制的理论基础,在探讨过程中提出了安全熵是反映安全系统本身的混乱程度的概念。在此基础上,通过对安全度与熵的内在联系的分析,提出了安全熵的概念并给出其数学表达式。并进一步通过对人—机—环境3大要素组成的安全系统进行数学建模,以概率统计方法为手段,对各个因素的内在联系用概率的形式表达出来,从而给出了安全系统的整体安全熵。安全熵的提出及其量化,对安全系统运行机制的探讨是至关重要的。
The maintenance and evolement of dissipative structure were taken as the theoretical basis of operational mechanism of safety system, the concept that the safety entrow was the concept reflecting degree of confusion in safety system was put forward. It was on this basis that the intrinsic relationship between the degree and entropy of safety was analyzed; the concept of safety entropy and its mathematical expression were put forward. Furthermore, a mathematical model of the safety system consisted of man-machine-environment was established. The intrinsic relationship of various functions was expressed in probability form using probability staffstics to provide the total safety entropy in safety system. The proposition of safety entropy and its quantificatication are especially important in discussion of operational rnechanism of safety system.
出处
《中国安全科学学报》
CAS
CSCD
2006年第3期4-7,16,共5页
China Safety Science Journal
关键词
熵
安全度
安全熵
安全系统
耗散结构
entropy
degree of safety
entropy of safety
safety system
dissipative structure
