TY - GEN
T1 - Systematic analysis of maintenance strategies of technical systems
AU - Laakso, Kari
AU - Strömberg, Andre
PY - 2001
Y1 - 2001
N2 - The paper describes an approach to evaluate and improve
the effectiveness of the maintenance strategies of
technical systems in operating power plants. In the
Experience Based Reliability Centred Maintenance (EBRCM)
approach, the analyses of the history of occurred faults
and the preventive maintenance program are combined.
Changes in the maintenance programs are proposed for
reduction of faults or increasing the cost-efficiency of
maintenance. The justification of changes is based on
simple maintenance indicators and study of the underlying
failure and maintenance data. To make the analysis
resource-efficient and generate easily the maintenance
indicators, suitable data analysis and warehouse tools
are used. They facilitate the online access and treatment
of the work orders and other planning information in
plant information systems.
In order to direct the analysis to the important items
from maintenance point of view, the equipment of the
plant are classified based on their importance for
reaching the maintenance objectives such as plant safety,
plant availability and worker protection. Maintenance
optimisation is directed to those important equipment
which exhibit a high number of failures. The other
equipment of less maintenance importance, but which
exhibit high preventive maintenance costs and low numbers
of failures are also analysed to improve the
cost-effectiveness of maintenance.
After experiences from performing two case studies, both
on a standby safety system and a continuously operating
process system, Barsebäck Kraft AB adopted the experience
based RCM approach as standard method for evaluation of
the maintenance action programs and planning of
modifications in them. The strength is the applicability
and continuity of this method, i.e. each year again.
AB - The paper describes an approach to evaluate and improve
the effectiveness of the maintenance strategies of
technical systems in operating power plants. In the
Experience Based Reliability Centred Maintenance (EBRCM)
approach, the analyses of the history of occurred faults
and the preventive maintenance program are combined.
Changes in the maintenance programs are proposed for
reduction of faults or increasing the cost-efficiency of
maintenance. The justification of changes is based on
simple maintenance indicators and study of the underlying
failure and maintenance data. To make the analysis
resource-efficient and generate easily the maintenance
indicators, suitable data analysis and warehouse tools
are used. They facilitate the online access and treatment
of the work orders and other planning information in
plant information systems.
In order to direct the analysis to the important items
from maintenance point of view, the equipment of the
plant are classified based on their importance for
reaching the maintenance objectives such as plant safety,
plant availability and worker protection. Maintenance
optimisation is directed to those important equipment
which exhibit a high number of failures. The other
equipment of less maintenance importance, but which
exhibit high preventive maintenance costs and low numbers
of failures are also analysed to improve the
cost-effectiveness of maintenance.
After experiences from performing two case studies, both
on a standby safety system and a continuously operating
process system, Barsebäck Kraft AB adopted the experience
based RCM approach as standard method for evaluation of
the maintenance action programs and planning of
modifications in them. The strength is the applicability
and continuity of this method, i.e. each year again.
M3 - Conference article in proceedings
SN - 951-38-5716-6
T3 - VTT Symposium
SP - 535
EP - 546
BT - BALTICA V
PB - VTT Technical Research Centre of Finland
CY - Espoo
T2 - BALTICA V - Condition and Life Management for Power Plants
Y2 - 6 June 2001 through 8 June 2001
ER -