scholarly journals Calculation of the stress – strain state of blades made of polymer composite materials of starting turboexpanders in resonance zones

Author(s):  
Yurii Nakonetchnyi ◽  
Ihor Yarema ◽  
Vitalii Batiuk

An overview of the successful application of modern composite materials for the manufacturing of turbine blades of aircraft gas turbine engines, axial mine and blast furnace compressors. Their main advantages of these materials in comparison with metal are analyzed. Analytical calculations of stresses arising in the material of plastic blades of starting turboexpanders are carried out. The possibility of successful application of glass-filled polyamide for the manufacturing of moving and guide blades of starting turboexpanders and their successful operation at compressor stations of main gas pipelines is substantiated.

1988 ◽  
Author(s):  
James C. Birdsall ◽  
William J. Davies ◽  
Richard Dixon ◽  
Matthew J. Ivary ◽  
Gary A. Wigell

Author(s):  
O. B. Silchenko ◽  
M. V. Siluyanova ◽  
V. Е. Nizovtsev ◽  
D. A. Klimov ◽  
A. A. Kornilov

The paper gives a brief review of properties and applications of developed extra-hard nanostructured composite materials and coatings based on them. The presentresearch suggestsaerospace applications of nanostructured composite materials based on carbides, carbonitrides and diboridesof transition and refractory metals. To improve the technical and economic performance of gas turbine engines, it is advisable to use new composite structural materials whose basic physicomechanical properties are several times superior to traditional ones. The greatest progress in developing new composites should be expected in the area of materials created on the basis of polymer, metal, intermetallic and ceramic matrices. Currently components and assemblies of gas turbine engines and multiple lighting power units with long operation life and durability will vigorously develop. Next-generation composites are studied in all developed countries, primarily in the United States and Japan.


1985 ◽  
Vol 107 (1) ◽  
pp. 205-211 ◽  
Author(s):  
J. H. Griffin ◽  
A. Sinha

This paper summarizes the results of an investigation to establish the impact of mistuning on the performance and design of blade-to-blade friction dampers of the type used to control the resonant response of turbine blades in gas turbine engines. In addition, it discusses the importance of friction slip force variations on the dynamic response of shrouded fan blades.


Author(s):  
Валерий Полетаев ◽  
Valeriy Poletaev ◽  
Александр Орлов ◽  
Alexander Orlov

In the paper different versions of engineering procedures for manufacturing punches in turbine blades are considered. The engineering procedures of electro-erosion treatment based on consecutive and simultaneous punch broaching in a flowing part of turbine blades are compared, and the efficient fields of their used are defined.


Author(s):  
N.V. Petrushin ◽  
◽  
O.G. Ospennikova ◽  
I.L. Svetlov ◽  
◽  
...  

2007 ◽  
Vol 49 (5-6) ◽  
pp. 253-259 ◽  
Author(s):  
V. P. Kuznetsov ◽  
V. P. Lesnikov ◽  
S. A. Muboyadzhyan ◽  
O. V. Repina

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