Efficient Plant May 2018 - 25

feature | maintenance strategies
between assets and still have access to all
data
 effective dependability, i.e., the availability, reliability, maintainability, and safe
operation of assets.

RISK MANAGMENT
In the context of asset management, the
CMMS is a natural solution for executing
preventive-maintenance activities that mitigate or reduce risks associated with achieving organizational objectives. A CMMS is
designed to handle the full range of needs to
perform risk-assessed maintenance, such as
planned periodic maintenance activities and
meter-based scheduled discards.
It also helps with planning material requirements, projecting required labor hours
and skill requirements, and the frequency of
performing the tasks and task specifications
in standard operating procedures (SOPs),
all while providing a full range of other

informational resources that support riskbased asset health.

CONDITION MONITORING
Condition-based maintenance (CBM) is
a predictive approach to managing asset
health rather than a predetermined riskbased or preventive approach. CBM has
been made more appropriate and cost-effective because of the IIoT. This approach may
include any combination of the following:
 inspections with measurement tools
 shock and vibration monitoring
 ultrasound monitoring
 fluid and oil analysis
 structural integrity analysis
 non-destructive testing (NDT)
 thermal or infrared imaging.
CBM can be performed by a technician
using specialized test tools, fixed-condition monitoring sensors, or by sampling
the existing network and infrastructure

of sensor technologies that exists within
supervisory-control and data-acquisition
systems, along with other distributed-control systems and Industrial Internet of
Things applications. Known failure modes
specified by the asset-management plan are
addressed and monitored.
A CMMS can capture and organize the
condition of the asset, analyze the data
pertaining to imminent potential failure,
autonomously create corrective work orders
based on predetermined parameters, and
determine additional prognostics from visual information provided by trending and
charting. EP
Information in this article was provided by
Scott Rojas, a maintenance and reliability
consultant for eMaint and Fluke Corp., Everett, WA (fluke.com). For more information
on CMMS best practices, email scott.rojas@
fluke.com or visit emaint.com.

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MAY 2018

EFFICIENTPLANTMAG.COM |

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