The origins of predictive maintenance in aviation and how it’s applied in industry today
Predictive maintenance is about being able to identify that something is going to malfunction and fixing it before it does. It is the Industry 4.0 version of maintenance. Within industry, predictive maintenance harnesses data to analyse and predict when equipment is going to fail. It is a more proactive, cost-effective, and less time-consuming method of upkeep than simply making repairs when something goes wrong.
If you notice when something is going to break and replace it before it does, you will save money and time. It is why you should act sooner rather than later if a warning light comes on in your car. For example, topping up your engine oil is a lot cheaper and quicker than having to replace the entire engine. Predictive maintenance would predict exactly when a warning light would appear in your car and for what reason.
At Dashboard, our mission is to help industry become safer, cleaner, and more efficient. Predictive maintenance is fundamental to our solution and in this blog article, we will explore predictive maintenance and aviation as well as our own predictive maintenance uses.
Predictive Maintenance and Aviation
The aviation industry has always had high operating and maintenance costs. If an aircraft is grounded for an unexpected reason, the financial and personal costs can be huge for both the passengers and the airline. It is why predictive maintenance originated within the aviation industry.
Originally, aviators believed that all aircrafts and their components had a set lifetime of use after which they should be replaced. In short, more maintenance meant fewer issues. Unfortunately, maintenance does not always equal efficiency.
Research undertaken during the Second World War challenged conventional views and the first occurrences of predictive maintenance uses within aviation. The RAF observed that their B-24 Liberators were spending a lot of time grounded for both scheduled and unscheduled maintenance. The RAF Coast Command tasked a British scientist, C.H. Waddington, to investigate why. Waddington and his team took the following steps:
- Gathered and analysed as much data as they could.
- Identified that unscheduled repairs increased dramatically after scheduled maintenance.
- Concluded that scheduled maintenance caused breakdowns.
Ironically, the planned maintenance schedules were having the opposite of their intended purpose and causing downtime – a phenomenon now known as ‘The Waddington Effect’. The solution was to base the maintenance schedules upon the condition of the equipment and how often it was used rather than age.
Waddington laid the groundwork for predictive maintenance and aviation. A couple of decades later in the 1960s, research conducted by the United Airlines (UAL) reached the same conclusion. Waddington’s and UAL’s work mean that condition-based monitoring (a particular kind of predictive maintenance) is now standard within the aviation industry.
Rolls Royce and Predictive Maintenance
Predictive maintenance best practices continue to exist within the aviation industry. Today, predictive maintenance techniques are getting more and more sophisticated with the arrival of Industry 4.0. While Rolls Royce may be most famous for their cars, Rolls Royce engines also power 35 types of commercial aircraft.
Rolls Royce and predictive maintenance in the aviation industry are now intrinsically linked. Rolls Royce use the Internet of Things (IoT) to collect and analyse data that helps identify and predict maintenance needs. Parts are only replaced when necessary and aircraft downtime is reduced, saving cost, and increasing efficiency.
Predictive Maintenance Uses
Predictive maintenance and aviation have gone hand in hand for a long time but predictive maintenance uses are endless:
- Civil Infrastructure
- And many more
At Dashboard, we have developed a platform that enables predictive maintenance within any industry that generates data. Just look at our proposed applications for pipelines, wind turbines, and bridges. Just like Rolls Royce and predictive maintenance make aviation intelligent, the Dashboard platform uses predictive maintenance to make any number of industries intelligent.