Reliability Models

Reliability Models Utilized in ReliaSoft's Software Tools

Acclaimed for their ease of use, analytical power and unparalleled technical support, ReliaSoft's reliability analysis and data modeling software tools facilitate a comprehensive set of reliability engineering analysis techniques. This page provides an overview of the reliability models that are utilized in ReliaSoft's software tools.

NOTE: New capabilities are added to ReliaSoft's software products on an ongoing basis. For the most up-to-date product information, it is best to consult the product website or contact ReliaSoft.

Weibull++

ReliaSoft's Weibull++ reliability life data analysis software tool utilizes the following reliability models:

  • Lifetime Distributions: Weibull, Normal, Lognormal, Exponential, Generalized Gamma, Gamma, Logistic, Loglogistic, Gumbel, Weibull-Bayesian and Mixed Weibull models
  • Degradation Analysis: Linear, Exponential, Power, Logarithmic, Gompertz, Lloyd-Lipow models
  • Non-Parametric Life Data Analysis: Kaplan-Meier, Simple, Actuarial, Standard Actuarial models
  • Recurrent Event Data Analysis: Mean Cumulative Function, General Renewal Process models
  • Reliability Test Design: Parametric Binomial, Non-Parametric Binomial, Exponential Chi-Squared and Non-Parametric Bayesian
  • One Factor Designs
  • Factorial Designs: Two Level Full Factorial, Two Level Fractional Factorial, Plackett-Burman, General Full Factorial and Taguchi Orthogonal Array
  • Taguchi Robust Designs
  • Response Surface Method Designs: Central Composite and Box-Behnken
  • Reliability DOE: One Factor Reliability Designs, Two Level Full Factorial Reliability Designs, Two Level Fractional Factorial Reliability Designs and Plackett-Burman Reliability Designs
  • Mixture Designs: Simplex Lattice, Simplex Centroid, Simplex Axial and Extreme Vertex

ALTA

ReliaSoft's ALTA quantitative accelerated life testing data analysis software tool utilizes the following reliability models:

  • Lifetime Distributions: Weibull, Lognormal, Exponential
  • Life-Stress Relationship Models: Arrhenius, Eyring, Inverse Power Law, Temperature-Humidity, Temperature-NonThermal, Proportional Hazards, General Log-Linear (with user-defined transformations), Cumulative Damage and Generalized Eyring models
  • Degradation Analysis: Linear, Exponential, Power, Logarithmic, Gompertz, Lloyd-Lipow models

RGA

ReliaSoft's RGA reliability growth and repairable system data analysis software tool utilizes the following reliability models:

  • Traditional Reliability Growth Analysis: Crow-AMSAA (NHPP), Duane, Standard Gompertz, Modified Gompertz, Lloyd-Lipow and Logistic
  • Reliability Growth Projections, Planning and Management: Crow Extended and Crow Extended - Continuous Evaluation
  • Fielded Repairable Systems Analysis Crow-AMSAA (NHPP) and Power Law

BlockSim

ReliaSoft's BlockSim system reliability and maintainability modeling and analysis software tool utilizes the following reliability models:

  • Diagram Types: Reliability Block Diagrams (RBDs), Fault Tree Analysis (FTA) and Markov Diagrams
  • Lifetime Distributions: Weibull, Normal, Lognormal, Exponential, Generalized Gamma, Gamma, Logistic, Loglogistic and Gumbel models

RENO

ReliaSoft's RENO simulation software tool for probabilistic event and risk analysis utilizes the following reliability models:

  • Distributions: Weibull, Exponential, Normal, Lognormal, Uniform, Uniform-Discrete, Poisson, Generalized Gamma, Gamma, Logistic, Loglogistic, Gumbel, Binomial, Negative Binomial, Beta, Chi-Squared, Inverse Gaussian, Student's t, F and Triangular models

Lambda Predict

ReliaSoft's Lambda Predict standards based reliability prediction software tool supports the following standards and utilizes the following reliability models:

  • Prediction Standards: MIL-HDBK-217F, Bellcore TR-332 Issue 6, Telcordia SR-332 Issue 1, Telcordia SR-332 Issue 2, Telcordia SR-332 Issue 3, FIDES, NSWC-07 and NSWC-11 (Mechanical)
  • Derating Standards: NAVSEA-TE000-AB-GTP-010, MIL-STD-975M, MIL-STD-1547A, Naval Air System Command AS-4613 and ECSS-Q-30-11-A
  • Reliability Allocation Methods: Equal, AGREE, Feasibility of Objectives, ARINC and Repairable Systems

Xfmea

ReliaSoft's Xfmea software tool for FMEA and related analyses supports the following standards:

  • FMEA Standards: AIAG, SAE J1739, IEC 60812, ISO 14971, VDA-4 (German Automotive Industry), MIL-STD-1629A and highly configurable to define your own profiles

RCM++

ReliaSoft's RCM++ software tool for Reliability Centered Maintenance (RCM) analysis supports the following standards:

  • RCM Standards: ATA MSG-3, SAE JA1011, SAE JA1012 and highly configurable to define your own profiles

RBI

ReliaSoft's RBI software tool for risk based inspection analysis offers the following standards:

  • API RP 580/581: Elements for developing, implementing and maintaining a risk-based inspection program.
  • ASME PCC-3-2007: Risk analysis principles, guidance and implementation strategies for applications involving fixed pressure-containing equipment and components.

MPC

ReliaSoft's MPC software tool for MSG-3 aircraft systems and powerplant analysis offers the following:

  • ATA MSG-3 Aircraft Systems and Powerplant Analysis: Selection of Maintenance Significant Items (MSIs), Failure Effect Categorization (FEC) and Maintenance Task Selection

XFRACAS

ReliaSoft's XFRACAS web-based failure reporting, analysis and corrective action system offers configurable interfaces for the following:

  • Interfaces: Customer Support, System Configuration Management and Part Tracking, Incident Reporting (FRACAS), Problem Resolution, Actions Management, Queries, Reports and Analyses

 

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