Temat: blades properties - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of casting parameters on fatigue properties of the ŻS6U-WI alloy
Autorzy:: Tomczak, Anna
Powiązania:: https://bibliotekanauki.pl/articles/2032797.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: ŻS6U-WI
fatigue properties
compressor turbine blades
właściwości zmęczeniowe
łopatki turbinowe
sprężarka
Opis:: The hot parts of aircraft engines are made of nickel-based superalloys and work in extremely difficult conditions. The compressor blades mentioned in the article are usually produced by a casting process whose parameters have a great influence on the fatigue properties of the end product. The parameters of the casting process have significant influence on the microstructure, i.e. phase components morphologies. The article presents the results of the analysis of microstructures of nickel superalloys and the influence of casting parameters on the fatigue strength of finished products. The casting parameters were selected experimentally. The work included analysis of the microstructure of semifinished products and high-cyclic fatigue strength tests of the final product.
Źródło:: Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika; 2021, z. 93 [302]; 53-64
0209-2689
2300-5211
Pojawia się w:: Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Composite rotor blades tests essential before mounting on gyroplane
Autorzy:: Sobieszek, A.
Wojtas, M.
Powiązania:: https://bibliotekanauki.pl/articles/242636.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: gyroplane
strength test
blades properties
composites
Opis:: The article presents the course of the composite rotor blades tests. Object of study was designed in Institute of Aviation, new airfoil for gyroplane rotors and technology of manufacturing carbon rotor blades were made. When the test program was developed, we focused for special test to check not only typical rotor blades properties but also composite structures thereby technology of manufacturing. One of the basic rotor blades test is to determine the breaking force, which, taking into account the safety factor, cannot exceed the maximum centrifugal force occurring on the rotor blades during flight. The first step of rotor blades tests was static test, which gave us answer about stiffness in plane of low stiffness and torsional stiffness, it’s very important properties related to vibrations. Another mechanical properties measured during tests were centre of gravity and mass moment of inertia in rotor blade. Next step was dynamic test – tracking and balancing verification. After static and dynamics, which has proper results – good balance and no vibration on the entire range of rotational speed – rotor blades can be use on fly object. After getting proper results of static and dynamic test next step was a specially prepared test, which defined the time needed for delamination to take place. During the delamination tests, the rotor blade was subjected to adequate loads that occur in horizontal flight. That kind of test is basis to determine service life of rotor blades.
Źródło:: Journal of KONES; 2016, 23, 4; 487-494
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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