Aerospace Testing InternationalAerospace Testing International
  • News
    • A-E
      • Acoustic & Vibration
      • Avionics
      • Data Acquisition
      • Defense
      • Drones & Air Taxis
      • Electric & Hybrid
      • EMC
      • Engine Testing
      • Environmental Testing
    • F-L
      • Fatigue Testing
      • Flight Testing
      • Helicopters & Rotorcraft
      • High Speed Imaging
      • Industry News
    • M-S
      • Materials Testing
      • NDT
      • Simulation & Training
      • Software
      • Space
      • Structural Testing
      • Supplier News
    • T-Z
      • Technology
      • Telemetry & Communications
      • Weapons Testing
      • Wind Tunnels
  • Features
  • Magazines
    • March 2025
    • Dec 2024/Jan 2025
    • Showcase 2025
    • September 2024
    • June 2024
    • Archive Issues
    • Subscribe Free!
  • Opinion
  • Webinars
  • Events
    • All Events
    • Aerospace Test & Development Show
  • Podcasts
  • Videos
  • Suppliers
    • Supplier Spotlights
    • Press Releases
    • Technical Papers
  • Jobs
    • Browse Jobs
    • Post a Job – It’s FREE!
    • Manage Jobs (Employers)
LinkedIn YouTube X (Twitter)
LinkedIn YouTube X (Twitter)
Subscribe to magazine Subscribe to email newsletter Media Pack
Aerospace Testing InternationalAerospace Testing International
  • News
      • Acoustic & Vibration
      • Avionics
      • Data Acquisition
      • Defense
      • Drones & Air Taxis
      • Electric & Hybrid
      • EMC
      • Engine Testing
      • Environmental Testing
      • Fatigue Testing
      • Flight Testing
      • Helicopters & Rotorcraft
      • High Speed Imaging
      • Industry News
      • Materials Testing
      • NDT
      • Simulation & Training
      • Software
      • Space
      • Structural Testing
      • Supplier News
      • Technology
      • Telemetry & Communications
      • Weapons Testing
      • Wind Tunnels
  • Features
  • Magazines
    1. March 2025
    2. Dec 2024/Jan 2025
    3. Showcase 2025
    4. September 2024
    5. June 2024
    6. March 2024
    7. Archive Issues
    8. Subscribe Free!
    Featured
    19th March 2025

    In this issue: March 2025

    Online Magazines By Ben Sampson
    Recent

    In this issue: March 2025

    19th March 2025
    contents and front cover of magazine

    In this issue: December / January 2025

    19th December 2024
    Showcase 2025

    In this issue – Showcase 2025

    6th November 2024
  • Opinion
  • Webinars
  • Events
    • All Events
    • Aerospace Test & Development Show
  • Podcasts
  • Videos
  • Suppliers
    • Supplier Spotlights
    • Press Releases
    • Technical Papers
  • Jobs
    • Browse Jobs
    • Post a Job – It’s FREE!
    • Manage Jobs (Employers)
LinkedIn YouTube X (Twitter)
Aerospace Testing InternationalAerospace Testing International
Acoustic & Vibration Engine Testing Products & Services

Vibration testing: Optimizing with the Tescia repetitive testing system

Paige SmithBy Paige Smith16th March 20213 Mins Read
Share LinkedIn Twitter Facebook Email

To pass a performance test, the parameters of an aircraft engine have to be rigorously checked.

In the case of vibration, the correct balance is checked at two points on the engine and monitored by permanently mounted accelerometers that continuously record the vibratory displacement, which must remain within a very precise tolerance level. To gain more expertise in this field, Air France Industries contacted HBK.

The solution was integrating a Tescia repetitive testing system, including HBK’s LAN‐XI data acquisition hardware and a dedicated PC into the Zephyr bench. 

This resulted in a better understanding of signals and how to handle them with confidence, consistent measurement ensured by remote check of non-physically accessible accelerometers and easy interpretation of the vibration behavior of two couplings rotating at different speeds due to Tescia providing simple and immediate information from complex processes. 

The check and overhaul of the engines, an Engine Shop Visit, takes place after a certain number of flight hours specified by the manufacturer, or during a major maintenance carried out every four or five years. With a workforce of more than 14,000 people, Air France Industries is one of the major players in engine MRO and services more than 3000 aircraft operated by 200 airlines worldwide.

An aircraft engine that needs to be overhauled spends about three months at the Air France Industries workshops at Orly and Roissy. The engine is dismantled, the parts are inspected in minute detail, cleaned, changed or repaired, and the whole assembly is reassembled by the dedicated technical teams before final testing. 

Before being allowed to fly again, an engine must be tested in conditions as close as possible to real life circumstances and must pass a performance test on the Zephyr test bench, where many parameters are checked including thrust, temperature at different points on the engine, pressure, and vibration levels.

The bench will of course prepare for this crucial stage and, in the case of vibration, the correct balance will be checked and adjusted at two points on the engine and measured by permanently mounted accelerometers. These sensors continuously record the vibratory displacement during aircraft operation, which must remain within a very precise tolerance level. Wishing to go further with these vibration measurements and to gain more expertise in this field, Ivan Rouesné, Zephyr’s Dubanc manager, contacted HBK.

After analyzing the customer’s requirements, Philippe Potereau, HBK’s business development manager, initially proposed to temporarily add a parallel system dedicated to repetitive vibration measurements into the Zephyr bench – that is the Tescia repetitive testing system designed in close collaboration with users from the aerospace industry for the measurement of rotating machines. A complete system, which includes Brüel & Kjær’s LAN‐XI data acquisition hardware and a dedicated PC, can be used in a small production environment with just one user, or in a larger system with multiple test and monitoring seats, guaranteeing immediate and reliable access to data by several teams simultaneously. 

The LAN-XI data acquisition front-end driven by Tescia software pleasantly surprised the users of the Zephyr test bench by its compactness and functionality. They can now go further in their analysis in preparation for performance tests and look forward to continuing to gain engine expertise with the new system and receiving technical support from HBK.

This article was provided by HBK

Share. Twitter LinkedIn Facebook Email
Previous ArticleNDT services and expertise available for aerospace suppliers
Next Article Surface defect detection for aerospace parts
Paige Smith

Paige is an experienced journalist and editor who started her career covering the building and architecture sector. After several years writing and editing online and print articles for leading journals in this sector, she is bringing her thorough approach to technical content to covering the business aviation industry. In her spare time she enjoys traveling and is always planning her next trip.

Related Posts

Engine Testing

Venus Aerospace tests rotating detonation rocket engine

16th May 20253 Mins Read
Engine Testing

Rolls-Royce Orpheus engine program completes 100 tests

15th May 20252 Mins Read
Engine Testing

GE completes key endurance tests for RISE engine technology

14th May 20252 Mins Read
Latest Posts

NDT: Robotics and software spur innovation

21st May 2025

Wisk and NASA to partner on US autonomous flight operations and standards

20th May 2025

Society of Flight Test Engineers Europe releases Annual Symposium 2025 agenda

19th May 2025
Supplier Spotlights
Our Social Channels
  • Twitter
  • YouTube
  • LinkedIn
Getting in Touch
  • Subscribe To Magazine
  • Contact Us
  • Meet the Team
  • Media Pack
Related Topics
  • Aircraft Interiors
  • Business Jet Interiors
FREE WEEKLY NEWS EMAIL!

Get the 'best of the week' from this website direct to your inbox every Wednesday

© 2023 Mark Allen Group Ltd | All Rights Reserved
  • Cookie Policy
  • Privacy Policy
  • Terms & Conditions

Type above and press Enter to search. Press Esc to cancel.