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Hybrid system is an important mathematical model for Cyber-Physical System, many physical process always modeled by differential equations. The safety verification of those systems become an urgent problem. In this paper we proposed a heuristical method to determine the system defined by nonlinear differential equation is whether safe or not, we consider the Van der Pol equation as a case study to...
Grounding grid is an important guarantee for safe operation of transformer substation, and its performance has been under the attention of the appropriate departments. When the power system is in contingency, grounding grid will rapidly excrete fault current into the earth in order to control the rise of maximum of potential and ensure the safety of person and equipment. To make the superficial potential...
The running performance of train on Shiguo bridge is analyzed with energy random analysis theory for derailment. The calculated result shows that though the lateral amplitude exceeds the limit value of traffic safety given by code, the running safety, smoothness and comfort of train on Shiguo bridge can be guaranteed with the existing operation condition. The measurement of rate-limiting or reinforcement...
Aircraft Engine Health Management (EHM) System deals with the monitoring, detection, isolation, trend prediction and accommodation of engine degradation, faults, and failures. Minimizing total cost of engine ownership, increasing asset availability/mission readiness and while maintaining or even increasing safety are the key drivers for the implementation of EHM System. This paper investigates the...
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