Class ReliabilityDataSource

java.lang.Object

neqsim.process.equipment.failure.ReliabilityDataSource

All Implemented Interfaces:

Serializable

public class ReliabilityDataSource
extends Object
implements Serializable

Data source for equipment reliability data (MTBF, MTTR, failure modes).

Loads reliability data from CSV files based on OREDA (Offshore Reliability Data) and industry standards. Provides lookup methods for equipment types and categories.

Data Sources

• OREDA - Offshore Reliability Data Handbook
• API 689 - Collection and Exchange of Reliability Data
• ISO 14224 - Petroleum, petrochemical and natural gas industries - Collection and exchange of reliability and maintenance data

Example Usage

ReliabilityDataSource dataSource = ReliabilityDataSource.getInstance();

// Get reliability data for a compressor
ReliabilityData data = dataSource.getReliabilityData("Compressor", "Centrifugal");
System.out.println("MTBF: " + data.getMtbf() + " hours");
System.out.println("MTTR: " + data.getMttr() + " hours");

// Get failure modes
List<FailureModeData> modes = dataSource.getFailureModes("Compressor", "Centrifugal");
for (FailureModeData mode : modes) {
  System.out.println(mode.getFailureMode() + ": " + mode.getProbability() + "%");
}

Version:

1.0

Author:

NeqSim Development Team

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ReliabilityDataSource.FailureModeData	Failure mode data holder.
static class	ReliabilityDataSource.ReliabilityData	Equipment reliability data holder.

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	dataLoaded	Flag indicating if data is loaded.
private Map<String, List<ReliabilityDataSource.FailureModeData>>	failureModes	Failure mode data.
private static ReliabilityDataSource	instance	Singleton instance.
private static final org.apache.logging.log4j.Logger	logger	Logger.
private Map<String, ReliabilityDataSource.ReliabilityData>	reliabilityData	Equipment reliability data.
private static final long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ReliabilityDataSource()	Private constructor for singleton.

Method Summary

Modifier and Type	Method	Description
private void	addFailureMode(String type, String subType, String mode, double probability, String severity, double mttr)
private void	addReliabilityData(String type, String subType, double mtbf, double mttr, String source)
EquipmentFailureMode	createFailureMode(String equipmentName, String equipmentType, String subType)	Creates an EquipmentFailureMode from reliability data.
List<String>	getEquipmentTypes()	Gets all equipment types in the database.
List<ReliabilityDataSource.FailureModeData>	getFailureModes(String equipmentType)	Gets failure modes for equipment type.
List<ReliabilityDataSource.FailureModeData>	getFailureModes(String equipmentType, String subType)	Gets failure modes for equipment type and subtype.
static ReliabilityDataSource	getInstance()	Gets the singleton instance.
ReliabilityDataSource.ReliabilityData	getReliabilityData(String equipmentType)	Gets reliability data for equipment type.
ReliabilityDataSource.ReliabilityData	getReliabilityData(String equipmentType, String subType)	Gets reliability data for equipment type and subtype.
List<String>	getSubTypes(String equipmentType)	Gets all subtypes for an equipment type.
private void	loadData()	Loads reliability data from resources.
private void	loadDefaultData()
private void	loadDefaultFailureModes()
private void	loadDefaultReliabilityData()
private void	loadFailureModeData()
private void	loadReliabilityData()
private String	makeKey(String type, String subType)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

logger

private static final org.apache.logging.log4j.Logger logger

Logger.

instance

private static ReliabilityDataSource instance

Singleton instance.

reliabilityData

private Map<String, ReliabilityDataSource.ReliabilityData> reliabilityData

Equipment reliability data.

failureModes

private Map<String, List<ReliabilityDataSource.FailureModeData>> failureModes

Failure mode data.

dataLoaded

private boolean dataLoaded

Flag indicating if data is loaded.

Constructor Details

ReliabilityDataSource

private ReliabilityDataSource()

Private constructor for singleton.

Method Details

getInstance

public static ReliabilityDataSource getInstance()

Gets the singleton instance.

Returns:

the data source instance

loadData

private void loadData()

Loads reliability data from resources.

loadReliabilityData

private void loadReliabilityData()

loadFailureModeData

private void loadFailureModeData()

loadDefaultData

private void loadDefaultData()

loadDefaultReliabilityData

private void loadDefaultReliabilityData()

loadDefaultFailureModes

private void loadDefaultFailureModes()

addReliabilityData

private void addReliabilityData(String type,
 String subType,
 double mtbf,
 double mttr,
 String source)

addFailureMode

private void addFailureMode(String type,
 String subType,
 String mode,
 double probability,
 String severity,
 double mttr)

makeKey

private String makeKey(String type,
 String subType)

getReliabilityData

public ReliabilityDataSource.ReliabilityData getReliabilityData(String equipmentType,
 String subType)

Gets reliability data for equipment type and subtype.

Parameters:

equipmentType - equipment type (e.g., "Compressor")

subType - equipment subtype (e.g., "Centrifugal")

Returns:

reliability data or null if not found

getReliabilityData

public ReliabilityDataSource.ReliabilityData getReliabilityData(String equipmentType)

Gets reliability data for equipment type.

Parameters:

equipmentType - equipment type

Returns:

reliability data or null if not found

getFailureModes

public List<ReliabilityDataSource.FailureModeData> getFailureModes(String equipmentType,
 String subType)

Gets failure modes for equipment type and subtype.

Parameters:

equipmentType - equipment type

subType - equipment subtype

Returns:

list of failure modes (may be empty)

getFailureModes

public List<ReliabilityDataSource.FailureModeData> getFailureModes(String equipmentType)

Gets failure modes for equipment type.

Parameters:

equipmentType - equipment type

Returns:

list of failure modes

getEquipmentTypes

public List<String> getEquipmentTypes()

Gets all equipment types in the database.

Returns:

list of equipment types

getSubTypes

public List<String> getSubTypes(String equipmentType)

Gets all subtypes for an equipment type.

Parameters:

equipmentType - the equipment type

Returns:

list of subtypes

createFailureMode

public EquipmentFailureMode createFailureMode(String equipmentName,
 String equipmentType,
 String subType)

Creates an EquipmentFailureMode from reliability data.

Parameters:

equipmentName - name for the equipment

equipmentType - type to lookup

subType - subtype to lookup

Returns:

equipment failure mode with MTTR from database