Reliability Calculations and Simulations

Enhanced in Version 10!

Failure Modes and Reliability Analysis (FMRA)

You can use the new failure modes and reliability analysis (FMRA) feature to integrate statistical reliability analysis calculations into your FMEA and RCM activities. Specifically, this view can be used to:

Comparing Maintenance Strategies Based on Cost and Availability

Even when you choose to use the predefined decision logic diagrams employed by traditional RCM methods, those guidelines still require the analysis team to utilize their knowledge of the equipment's failure behavior when making decisions about the appropriate maintenance strategy. RCM++ provides built-in simulation and calculation engines to help with these assessments.

Choose from a Variety of Statistical Distributions to Describe the Failure Behavior

When you use an MTBF or failure rate to describe the equipment's failure behavior, you are assuming that failures occur at a constant rate regardless of the age of the equipment (i.e., an exponential distribution). Other statistical distributions are more appropriate for situations where the failure behavior varies with time, as in the case of infant mortality or wearout. RCM++ allows you to more accurately describe the probability of failure by providing a choice of ten distributions (including, but not limited to, the lognormal, exponential and all forms of the Weibull distribution). Integration with ReliaSoft's Weibull++, ALTA and BlockSim software tools makes it possible to obtain the failure time distribution and parameters from an existing data analysis or RBD/fault tree. The software also provides the Quick Parameter Estimator (QPE) utility to help you estimate the distribution parameters based on limited information.

Comparing Maintenance Strategies Based on Cost and Availability

When a failure mode does not involve hazardous consequences that require a conservative prevention strategy, the analysis team may wish to choose the maintenance approach that will provide adequate availability with the lowest operational costs. RCM++ makes it possible to simulate the operation of the equipment with different potential maintenance strategies in order to estimate the expected failures for each scenario and calculate the Average Availability, Cost per Uptime and Total Operating Cost.

Calculate the Optimum Replacement Interval

Preventive replacement may be be worthwhile if the reliability gets worse with time and the cost of the planned preventive replacement is less than the cost of unplanned corrective maintenance.

When both of these requirements are met, RCM++ provides a utility to automatically calculate the optimum replacement interval that will minimize corrective and preventive maintenance costs. The new utility allows you to calculate the optimum time for an individual item, or to calculate a time that will be optimum for a specified group of items.

Weibull++ Reliability Life Data Analysis ALTA Accelerated Life Testing Data Analysis DOE++ Experiment Design and Analysis RGA Reliability Growth and Repairable System Analysis BlockSim System Reliability and Maintainability Analysis RENO for Risk Analysis via Discrete Event Simulation Lambda Predict Reliability Prediction Xfmea FMEA and FMECA RCM++ Reliability Centered Maintenance MPC MSG-3 Maintenance Program Creation XFRACAS Web-based FRACAS Orion eAPI Web-based Asset Management ALTA Accelerated Life Testing Data Analysis BlockSim System Reliability and Maintainability Analysis DOE++ Experiment Design and Analysis MPC MSG-3 Maintenance Program Creation Lambda Predict Reliability Prediction RCM++ Reliability Centered Maintenance RENO for Risk Analysis via Discrete Event Simulation RGA Reliability Growth and Repairable System Analysis Weibull++ Reliability Life Data Analysis Xfmea FMEA and FMECA XFRACAS Web-based FRACAS Orion eAPI Web-based Asset Management ALTA Accelerated Life Testing Data Analysis BlockSim System Reliability and Maintainability Analysis DOE++ Experiment Design and Analysis MPC MSG-3 Maintenance Program Creation Lambda Predict Reliability Prediction RCM++ Reliability Centered Maintenance RENO for Risk Analysis via Discrete Event Simulation RGA Reliability Growth and Repairable System Analysis Weibull++ Reliability Life Data Analysis Xfmea FMEA and FMECA XFRACAS Web-based FRACAS Orion eAPI Web-based Asset Management    ReliaSoft.com Footer

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