Abstract: A failure-effect validation system includes an effects modeler configured to develop a cumulative effects model for failure modes of the complex system, and by which a model of the complex system is extendible to form an extended complex-system model. The effects modeler is also configured to develop search targets each of which includes logical expressions of notable hazards and other factors that contribute to the cumulative effects, such as crew workload, safety margin and/or physiological effects. A model analysis system is configured to perform an automated analysis using the extended complex-system model and search targets, and in which the automated analysis includes a graph search of possible states of the extended complex-system model to locate search targets. And the effects assessment system is configured to selectively generate a layout of failure analysis data including at least a portion of the extended complex-system model and results of the automated analysis.

Abstract: A system and method are disclosed for establishing hierarchal subcomponent sensor communication for a vehicle. A database includes information associated with a plurality of subcomponents having a sensor. A software modeling tool implements a safety model and a fault detection and isolation (FDI) model. The safety model determines a probability of a constraint being violated given a probability of failure of each subcomponent. The FDI model determines a probability associated with a risk exposure for known and unknown faults for each subcomponent. A processor identifies those subcomponent sensors that reduce risk-exposure based on probabilities generated using the safety model and FDI model and generates an output of a set of vehicle subcomponent sensors for connection to an vehicle communication system for communication at a higher level of hierarchy, such that the vehicle communication system can receive information indicative of a subcomponent fault and generate an alert about the fault.

Abstract: A failure-effect validation system includes an effects modeler configured to develop a cumulative effects model for failure modes of the complex system, and by which a model of the complex system is extendible to form an extended complex-system model. The effects modeler is also configured to develop search targets each of which includes logical expressions of notable hazards and other factors that contribute to the cumulative effects, such as crew workload, safety margin and/or physiological effects. A model analysis system is configured to perform an automated analysis using the extended complex-system model and search targets, and in which the automated analysis includes a graph search of possible states of the extended complex-system model to locate search targets. And the effects assessment system is configured to selectively generate a layout of failure analysis data including at least a portion of the extended complex-system model and results of the automated analysis.