A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair Process
The fatigue test was carried out on an element of a rotor blade removed from the Mi-2 helicopter. The purpose of the test was to check the fatigue strength of the repaired rotor blade. Metal composite rotor blades have a metal spar in the form of a box and the trailing sections in the form of metall...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2019-12-01
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| Series: | Fatigue of Aircraft Structures |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/fas-2019-0006 |
| _version_ | 1828076732715892736 |
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| author | Sałaciński Michał Kowalski Rafał Szmidt Michał Augustyn Sławomir |
| author_facet | Sałaciński Michał Kowalski Rafał Szmidt Michał Augustyn Sławomir |
| author_sort | Sałaciński Michał |
| collection | DOAJ |
| description | The fatigue test was carried out on an element of a rotor blade removed from the Mi-2 helicopter. The purpose of the test was to check the fatigue strength of the repaired rotor blade. Metal composite rotor blades have a metal spar in the form of a box and the trailing sections in the form of metallic honeycomb sandwich panels. The trailing sections are bonded to the spar. The repair had been carried out at the point where the trailing section became debonded from the spar at the Air Force Institute of Technology in Warsaw using a methodology developed for carrying out repairs of rotor blades’ damage. All types of the Mi family helicopters are equipped with metal composite rotors blades. Depending on MTOW (Maximum Take-Off Weight) and destination of helicopters, blades differ in dimensions, but their design solutions are practically the same. For this reason, the developed repair methodology can be used for all characteristic rotor blades structures for Mi helicopters. The fatigue test was performed at the Łukasiewicz - Institute of Aviation in Warsaw, using a hydraulically driven fatigue machine. The fatigue test was carried out by performing over 1.1 million load cycles. In repair places, upon completion of fatigue testing, no damage was found. |
| first_indexed | 2024-04-11T02:18:09Z |
| format | Article |
| id | doaj.art-47b22a2ccee54b079cc1ffb98fd95978 |
| institution | Directory Open Access Journal |
| issn | 2300-7591 |
| language | English |
| last_indexed | 2024-04-11T02:18:09Z |
| publishDate | 2019-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Fatigue of Aircraft Structures |
| spelling | doaj.art-47b22a2ccee54b079cc1ffb98fd959782023-01-03T00:28:07ZengSciendoFatigue of Aircraft Structures2300-75912019-12-01201911566710.2478/fas-2019-0006fas-2019-0006A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair ProcessSałaciński Michał0Kowalski Rafał1Szmidt Michał2Augustyn Sławomir3Air Force Institute of Technology, Księcia Bolesława 6, 01-494Warsaw, Poland41stTraining Air Base, Brygady Pościgowej, 08-530Dęblin, PolandŁukasiewicz Research Network ‒ Institute of Aviation, Al. Krakowska 110/114, 02-256Warsaw, PolandMilitary University of Technology, gen. Sylwestra Kaliskiego 2, 00-908Warsaw, PolandThe fatigue test was carried out on an element of a rotor blade removed from the Mi-2 helicopter. The purpose of the test was to check the fatigue strength of the repaired rotor blade. Metal composite rotor blades have a metal spar in the form of a box and the trailing sections in the form of metallic honeycomb sandwich panels. The trailing sections are bonded to the spar. The repair had been carried out at the point where the trailing section became debonded from the spar at the Air Force Institute of Technology in Warsaw using a methodology developed for carrying out repairs of rotor blades’ damage. All types of the Mi family helicopters are equipped with metal composite rotors blades. Depending on MTOW (Maximum Take-Off Weight) and destination of helicopters, blades differ in dimensions, but their design solutions are practically the same. For this reason, the developed repair methodology can be used for all characteristic rotor blades structures for Mi helicopters. The fatigue test was performed at the Łukasiewicz - Institute of Aviation in Warsaw, using a hydraulically driven fatigue machine. The fatigue test was carried out by performing over 1.1 million load cycles. In repair places, upon completion of fatigue testing, no damage was found.https://doi.org/10.2478/fas-2019-0006rotor bladehelicopterfatigue testrepairsbondingcomposites |
| spellingShingle | Sałaciński Michał Kowalski Rafał Szmidt Michał Augustyn Sławomir A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair Process Fatigue of Aircraft Structures rotor blade helicopter fatigue test repairs bonding composites |
| title | A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair Process |
| title_full | A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair Process |
| title_fullStr | A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair Process |
| title_full_unstemmed | A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair Process |
| title_short | A New Approach to Modelling and Testing the Fatigue Strength of Helicopter Rotor Blades during Repair Process |
| title_sort | new approach to modelling and testing the fatigue strength of helicopter rotor blades during repair process |
| topic | rotor blade helicopter fatigue test repairs bonding composites |
| url | https://doi.org/10.2478/fas-2019-0006 |
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