The dearth of published empirical data on major industrial systems has been one of the reasons that software engineering has failed to establish a proper scientific basis. In this paper we hope to provide a small contribution to the body of empirical knowledge. We describe a number of results from a quantitative study of faults and failures in two releases of a major commercial system. We teste...

Abstract Current method and voltage are two full compensation arc suppression control algorithms commonly used for single-phase grounding faults in the distribution network. The current has a good effect under small transition resistance, while large resistance. existing research focuses on principle implementation of method, but there is less applicable boundary comparative analysis these meth...

Abstract A novel approach for modelling a mine detection robot system is presented in this paper using partial differential equations and Hamilton’s principle. The comprises rigid arm, detecting sensor module, flexible string. addresses the challenges of boundary deflection constraint actuator fault. To overcome these challenges, unique controller developed Barrier Lyapunov function switching s...

The characteristics of near-fault ground motion are investigated considering heterogeneous slip distribution on the fault plane. Areas on the fault plane with large slip in compare with the average slip on the fault are known as asperity. The characteristics of strong ground motions in near-fault area are strongly affected by faulting parameters such as asperity location, maximum slip of asperi...

Despite coupling fractions being extensively used in the interseismic period, coexistence of locking and creeping mechanisms correlation between fraction depth remain poorly understood because lack a physical model. To overcome these limitations, this study, we propose model for interpreting motion non-fully coupled strike-slip faults based on classic two-dimensional fault superposition princip...

The rehabilitation exoskeleton is an effective piece of equipment for stroke patients and the aged. However, this complex human–robot system incurs many problems, such as modeling uncertainties, unknown interaction, external disturbance, actuator fault. This paper addresses adaptive fault-tolerant tracking control a lower limb joint driven by electro-hydraulic (EHA). First, model built consider...

The on-line monitoring device of dissolved gas in oil is an important starting point to understand the internal operation condition large filled equipment such as transformer. However, has no unified maintenance strategy. At present, it basically adopts strategy “repair only when broken”, which seriously affects real-time perception ability health state primary equipment. According components d...

Abstract In order to enhance the output voltage stability of converter system under non-linear and unbalanced load conditions, power quality control strategy based on fault-tolerant architecture is adopted. By analyzing principle strategy, a mathematical model parallel established. The paralleled linearized at steady-state operating point, corresponding small-signal analyzed. results show that ...

For safety-critical systems testing the justification of test case selections is mandatory. In the case of systems under test (SUT) with large data types (floats, doubles etc.) test cases are identified using the equivalence class partitioning principle. While this heuristic is useful for reducing the otherwise infeasible number of test cases to be performed, justification of the class partitio...