Survival Analysis For Repairable K Out Of N G Systems With Sensor

Abstract

Reliability has been developed within the framework of the theory newlineof Stochastic Processes It is concerned with the development of mathematical newlinemodels to find the behavior of the system that provides service to randomly newlinearising demands Reliability is an important part of engineering design newlineprocess and plays a vital role in life cycle analysis cost benefit analysis newlineoperational capability analysis repair facility resourcing etc Reliability is newlinedefined as the probability that a given item or system will perform its newlineintended function for a specified period of time under a given set of operating newlineconditions Repair in the system is a valuable aid because it facilitates the newlinemaximum utility of the components as desired newlineA system of n components works good if and only if at least k of newlinethe n components work good is called a koutofn G system A sensor newlinemeasures some physical quantity and converts it into a signal which can be newlineread by an observer or by an instrument The ratio between output signal and newlinemeasured property is known as the sensitivity of the sensor Sensor nodes are newlinethe simplest devices in the network Sensing and switching devices have got newlinegreater applications in reliability study The purpose of introducing sensor is newlineto detect the failure of the component in advance and hence to avoid the newlinefailure of the system for some extent Thus the reliability characteristics of newlinethe system can be improved In this research work different types of koutofn newlineG systems with sensor are analyzed newlineThis research mainly deals with sensors which comprise a sensing newlinedevice and switching device that convert a detected signal into an electrical newlinesignal Whenever a component begins to fail the sensor replaces that newlinecomponent with a standby component Also if the repair of any of the newlinecomponent is completed then the sensor detects the completion of the repair newlineand replaces the working component if necessary Thus the mean time to newlinefailure of the system is improved newline newline