AgustaWestland selects nCode GlyphWorks for SuperLynx 300

AgustaWestland recognized the need for a more efficient testing methodology. By moving to GlyphWorks software, they can now readily accelerate deployment time and get equipment to the front line faster without taking unnecessary safety risks. In particular, the Vibration Profile Design module (formerly known as Accelerated Testing) of GlyphWorks enables them to compare certification test specifications with real flight data and have found that it offers much more control over the necessary safety margin.

The objective for selecting GlyphWorks was to utilize read-across evidence, de-lifing/relifing analysis and test tailoring. The comparative (read-across) evidence determines whether equipment certified for helicopter A can be used on helicopter B. Previously, this assessment would have relied on engineering judgment or a timeconsuming re-test. nCode’s test solutions have reduced the cost of repetitive or needless testing and the risk associated with more qualitative judgments. The new approach uses Vibration Profile Design to compare severity of tests, with a pass, fail or de-lifing option now available.

For example, the test tailoring on the Super Lynx 300 enables analysis of the shock response and fatigue damage AgustaWestland selects nCode GlyphWorks for Super Lynx 300 spectrum in a far more efficient way with the test duration now at 48 hours as opposed to the original 140 hours.

Trevor Walton, AgustaWestlands' Principle Dynamicist said: "Before we had [Vibration Profile Design] we’d spend £100k’s a year on needless retesting equipment. We can now directly compare the severity of one test spec with another. I thought there would be reservations about test tailoring but after 3 months all my internal customers are adopting it. The tests are faster, cheaper and the safety margin is increased".

Dr. Andrew Halfpenny, nCode’s Chief Technologist said "[Vibration Profile Design] is the most successful application we have ever launched. Virtually every aircraft or land vehicle vibrates and all components are designed to withstand these vibration levels over their entire service life without failure. The [Vibration Profile Design] application allows us to quantify the vibration environment on an aircraft and then derive tailored vibration tests to qualify that component. The ability to compare the damage content of different tests also enables us to use test evidence obtained on other aircraft platforms to qualify components on a new platform. This read-across evidence can be used in place of additional testing in many cases. Helicopters offer a particular challenge with regards to vibration and we have applied considerable effort in developing specific capabilities to model the damage of these aircraft. I have thoroughly enjoyed working with AgustaWestland and seeing these techniques applied to real aircraft and making such a significant benefit to their flight certification program."