Study On The Brittleness Of Complex Supply Chain System Based On Self-organization Theory

Today, the global logistics supply chain is entering the era of modern competition is no longer a competition between enterprises and the enterprises, but competition among the supply chain. Supply chain system is a dissipative structure of complex giant system, both entities to run, also the provision of services and information, and the external environment has a lot of energy and material and information exchange. Brittle is a basic property of the system is when the systems are internal or external blow from the system when the nature of the collapse easily. Supply chain system of this complexity to the operation and development process showed great instability, a subsystem may be activated while the occurrence of brittle collapse, the original ordered state was destroyed and form a new non-order status, more serious domino effect could lead to the collapse of the whole supply chain system, causing serious supply chain risk.Self-organization of dissipative structure theory is included, mutation theory, bifurcation theory, chaos theory, synergetics theory such as group supply chain system is running theories. This research is based on self-organization theory of dissipative structure theory, entropy theory and catastrophe theory to the complex supply chain systems to conduct research and evaluation of brittle, brittle proposed based on the system of supply chain risk aversion program. This is in economic crisis conditions, the complex supply chain, improving the theory, entropy theory and catastrophe theory in the development and supply chain risk control are of great significance.In previous studies, to sort out on the basis of the results, first of all, this article from the organization theory and the theory of brittle in-depth research and combing of supply chain complexity and layered structure of the supply chain risks and supply chain, the relationship between brittle elaborated and discussed the entropy theory, catastrophe theory and Fragility; Secondly, based on entropy theory of supply chain system brittle, brittle structure of supply chain system model and the system entropy model, the supply chain is derived system entropy formula brittle link to quantitatively analyze the brittleness of the system, further study of a primitive subsystems within the brittle link entropy calculation; then applied catastrophe theory to complex supply chain system on the brittleness of constructed brittleness potential function model, an example of cusp catastrophe analysis of supply chain fragility and brittleness of catastrophe progression method was developed for evaluation. Finally, by analyzing the supply chain in the model, from the point entropy and catastrophe theory that the risk of fragility of the supply chain relationship between the proposed monitoring and control of supply chain risk programs, to achieve the purpose of theory with reality.