The Triton

Career

Balance Below: Online condition-monitoring technologies transport data, not people

ADVERTISEMENT

Balance Below: by Rich Merhige

Has equipment failure cost you a charter or owner’s trip? When it comes to yacht maintenance, failure to plan results in, well, failures.

The yachting world has been hesitant to adopt a predictive and preventative maintenance mindset, mostly due to preconceived notions about cost, when in reality some of the most advanced diagnostics are quite affordable thanks to new technology.

In a perfect world, machinery would be monitored continuously so any deviations from the baseline data could alert crew that they have a problem brewing. Continuous monitoring allows for early detection so conditions such as misalignment, engine misfire, or worn parts can be remedied before an unplanned outage occurs, keeping machinery running smoothly while increasing its lifespan.

Online condition monitoring is a relatively newer development in reliability-centered maintenance that allows engineers to detect irregularities in their machinery before shutdowns occur. It is the process of continuous monitoring of a machine that pulls data that can be accessed 24/7 wirelessly and is a significant component of predictive maintenance. The system will generate data at the machine’s most crucial moments and can detect changes in the machinery’s performance.

While commercial and government fleets have more familiarity with remote monitoring, these newer systems are designed to be more user-friendly and affordable for yacht owners and operators. Working smarter, not harder, is the concept. These units send data to a trusted vibration analyst who can diagnose exact problems and address the root cause.

How do online condition monitoring systems collect continuous real-time data and determine machinery health? Accelerometers are permanently affixed to the desired machinery, and cables are connected from the accelerometer to the online condition-monitoring system. A machinery database with the relevant machinery, measurement tasks and alarm levels is then created and uploaded into the online condition-monitoring system.

Vibration data is collected across all channels simultaneously (good for picking up any transient events) and transferred to the integrated yacht management system via ethernet, or to an onshore server via mobile cellular router. The real-time data can then be analyzed in two ways: on-site quick check using automated email notifications and visualization software; or remotely by a qualified vibration analyst.

Captains or chief engineers also can set up alarms to receive notifications of machinery updates on their phone or computer. Some of the more advanced analyzers on the market, using 16 or 20 measuring channels, can detect machine failures such as unbalance, misalignment, gear mesh and bearing failures. Other online condition-monitoring systems can monitor hydraulic fluid.

Online wear particle sensors are used to detect oil cleanliness. The sensor is installed upstream of the oil filter and connected to the integrated vessel management system via ethernet — it also can be paired well with the online vibration data collector. The sensor then uses eddy currents to detect wear debris from gears and bearings in the oil that passes through it. This data can then be sorted into the subsequent size and contamination level classes outlined in ISO 16232. Online condition monitoring systems can detect early signs of wear in pressurized lubricated systems.

The list of benefits of condition monitoring is extensive, and it can have an enormous impact on machinery’s productivity levels:

  • Reduces traveling and maintenance costs. This is one of the main benefits of condition monitoring. Even though it is often practiced, the “fix it as it breaks” tactic is always more expensive. One equipment failure can lead to a ripple effect, where other equipment surrounding the machinery will also start to fail. Yacht operators now have the ability to transport the data, not the contracted person, which also saves time and travel costs.
  • Maximizes productivity. With CM, engineers can be sure to optimize their production and meet deadlines, which means no more missed or delayed charters.
  • Reduces risk and helps prioritize maintenance tasks. With frequent and reliable updates about machinery, engineers have a real-time list of potential maintenance tasks and their priority. This can help them contract maintenance companies promptly and plan around scheduled projects, saving time and money.
  • Increases lifespan of machinery. Healthy machinery lasts longer. Condition monitoring not only can eliminate hidden costs, but can also boost machinery availability overall.

The newest systems on the market are a fraction of what they used to be, and are much more accurate and user-friendly. Next time an opportunity to invest in condition monitoring presents itself, don’t say “Why?” — say “Why not?”

Rich Merhige is owner of Advanced Mechanical Enterprises and Advanced Maintenance Engineering in Ft. Lauderdale (www.AMEsolutions.com). Comments are welcome below.

Related Posts...
During the fourth annual Lionfish Challenge, held May 18 to Read more...
As yachts begin to arrive in town for the Fort Read more...
M/Y Balista, a 153-foot (46m) Cantieri Di Pisa in 2013, Read more...
Yacht crew were recognized for excellence in 21 categories during Read more...

Share This Post

Leave a comment

Your email address will not be published. Required fields are marked *

Please answer the question below to leave a comment. * Time limit is exhausted. Please reload CAPTCHA.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Editor’s Picks

Lionfish Challenge eliminates 23,000 fish

Lionfish Challenge eliminates 23,000 fish

During the fourth annual Lionfish Challenge, held May 18 to Sept. 2, 23,451 lionfish were taken out of the ocean. There were 349 people …

Triton Expo 2019 draws big crowd

Triton Expo 2019 draws big crowd

As yachts begin to arrive in town for the Fort Lauderdale International Boat Show, more than 1,000 yacht captains, crew, and business …

Latest in the charter fleet: Balista with NJ; Excellence with Denison

Latest in the charter fleet: Balista with NJ; Excellence with Denison

M/Y Balista, a 153-foot (46m) Cantieri Di Pisa in 2013, available for winter charter in the Bahamas and Caribbean, and summer charter in …

Loon, Lady Rose take top crew awards

Loon, Lady Rose take top crew awards

Yacht crew were recognized for excellence in 21 categories during the Crew Awards by Acrew on Saturday. About 400 yacht captains and crew …