Lambda Predict: Standards Based Reliability Prediction Software Tool

MIL-217 * Bellcore/Telcordia * FIDES * NSWC Mechanical

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Click to see a picture of the software interface...When actual product reliability data is not available, standards based reliability prediction may be used to evaluate design feasibility, compare design alternatives, identify potential failure areas, trade-off system design factors and track reliability improvement. ReliaSoft's Lambda Predict software tool supports failure rate predictions and mean time between failure predictions (MTBF predictions) based on the major reliability prediction standards, including
MIL-HDBK-217 predictions, Bellcore predictions, Telcordia predictions, FIDES predictions and NSWC Mechanical predictions.  

Software Features

Lambda Predict makes it easy to build system configurations for analysis based on the MIL-HDBK-217-F (MIL-217), Bellcore/Telcordia, FIDES or NSWC Mechanical reliability prediction standards. The software provides a complete array of calculated results for your analyses (failure rate predictions, MTBF predictions, etc.) along with graphical charts and customizable reports. Lambda Predict offers a full set of supporting tools, including a reliability allocation utility, derating analysis and the ability to transfer and manage your data via flexible import/export utilities. The software also provides exclusive access to the website portal, which allows users to search and import parts data from MIL-M-38510, EPRD-97 or NPRD-95 (free to all users) as well as more than 300,000 specific commercial electronic components (yearly subscription required). 

Synthesis Integration

With integration into the Synthesis Platform, analyses are now stored in a centralized database that supports simultaneous access by multiple users and shares relevant reliability information between Synthesis-enabled software tools. For enterprise-level repositories, both Microsoft SQL Server® and Oracle® are supported.

Available Training

ReliaSoft offers a two-day training course that introduces the subject of standards based reliability prediction. The seminar provides hands-on training in the use of the Lambda Predict software tool for building and analyzing system configurations in accordance with a published reliability prediction standard, with emphasis on MIL-HDBK-217F predictions, Bellcore predictions, Telcordia predictions, FIDES predictions and NSWC Mechanical predictions.

Applications and Benefits

ReliaSoft's Lambda Predict software provides a comprehensive platform for building and analyzing systems in accordance with published reliability prediction standards. Some of the many applications for using standards based reliability prediction techniques and Lambda Predict include the ability to:

  • Obtain an initial indication of whether a design will be able to meet reliability objectives and identify potential problem areas early in development.
  • Compare design alternatives and/or trade-off system design factors.
  • Consider environmental and other stress factors that have a significant impact on system performance yet may otherwise be overlooked.
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Software Capability Highlights

Reliability Prediction Standards

  • MIL-HDBK-217F
    • Part Stress and Parts Count Methods
    • Option to define failure rates for custom connection types
    • Option to calculate non-operational failure rates based on RADC-TR-85-91
  • Bellcore/Telcordia
    • Telcordia SR-332 Issue 3
    • Telcordia SR-332 Issue 2
    • Telcordia SR-332 Issue 1
    • Bellcore TR-332 Issue 6
  • NSWC-07 (Mechanical)
  • For all standards, option to define failure rates for "external" components not addressed in the standard

Data Management

  • Easy to build system configurations
  • Multiple views for data entry
    • Tree View
    • Pi Factor View
  • Easy to find and reuse data
  • Import/export and copy/paste

Supported Calculations

  • For all predictions:
    • Failure Rate(t=∞)
    • MTBF
    • Contribution
  •  For Bellcore/Telcordia:
    • Early Life Factor
    • Standard Deviation(t=∞)
    • Failure Rate Upper Bound(t=∞)
  • For MIL-217:
    • Connection Failure Rate
    • Non-Operational Failure Rate
    • Non-Operational MTBF
    • Non-Operational Contribution
  • For blocks that use redundancy:
    • Mission Time
    • Failure Rate(t)
    • Unreliability(t)

Supported Plot Types
(depends on the prediction standard)

  • Failure Rate
  • MTBF
  • Unreliability
  • Mission Phase
  • Temperature Plots
    • Failure Rate vs. Temperature
    • MTBF vs. Temperature
    • Unreliability vs. Temperature
  • Environment Plots
    • Failure Rate vs. Environment
    • MTBF vs. Environment
    • Unreliability vs. Environment
  • Stress Plots (Current, Power or Voltage)
    • Failure Rate vs. Stress
    • MTBF vs. Stress
    • Unreliability vs. Stress
  • Contribution
  • Factor Contribution by Component (Contribution vs. Acceleration Factor)
  • Failure Rate per Phase

Derating Standards

  • NAVSEA-TE000-AB-GTP-010
  • MIL-STD-975M
  • MIL-STD-1547A
  • Naval Air System Command AS-4613
  • ECSS-Q-30-11-A

Reliability Allocation Methods

  • Equal
  • Feasibility of Objectives
  • Repairable Systems

Extensive Parts Libraries

  • MIL-HDBK-217F Parts Count
  • MIL-M-38510
  • EPRD-97
  • NPRD-95
  • (via subscription)
    • 300,000+ commercial components
    • 140+ manufacturers

Import Types

  • Excel® or delimited text files
  • Components from libraries

Synthesis Integration

  • Publish models based on the predicted failure rate
  • Use system configuration and prediction data in BlockSim and Xfmea/RCM++/RBI

Documentation and Training

Integration into the Synthesis Platform

Centralized Data Storage

  • Standard Repository (*.rsrp or *.rsr9)
  • Microsoft SQL Server® or Oracle®
  • Shared Analysis Settings and Data
  • Automatic Backups

Integration Between Synthesis Applications

  • Facilitate effective collaboration
  • Leverage overlap of reliability activities
  • Encapsulate reusable information
  • Create/share statistical models based on analysis results
  • Update multiple analyses simultaneously
  • View action items from any application

Project Management

  • Project Categories
  • Locked/Private Projects
  • Restore Points and History Log
  • Attachments

Messages and Actions Management

  • Create/track action items
  • Send/receive messages within the software
  • Create automated e-mail notifications

Simultaneous Access by Multiple Users

  • Single-user, multi-user and enterprise deployments
  • Flexible user access levels
  • Check projects in/out

Third-Party Connectivity and Data Sharing

  • The Synthesis API
    • Transfer data and analyses between systems
    • Leverage the analysis and plotting engines used in Synthesis
  • Synthesis Enterprise Portal (SEP)
    • Share key analysis information using any web-enabled device
    • Track, manage and update progress

Available Services

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