Optimization of the method of cold rolling of axial-flow compressor blades taking into consideration the fatigue characteristics

1989 ◽  
Vol 21 (5) ◽  
pp. 665-668 ◽  
Author(s):  
V. P. Egorov ◽  
I. V. Kornet ◽  
V. M. Kapralov ◽  
V. A. Matviichuk
Keyword(s):  
Cold Rolling ◽  
Axial Flow ◽  
Compressor Blades ◽  
Axial Flow Compressor ◽  
Fatigue Characteristics ◽  
Flow Compressor

scholarly journals Performance simulation of multi-stage axial-flow compressor of turbo-shaft engine with account for erosive wear nonlinearity of its blades

2020 ◽  
Vol 23 (5) ◽  
pp. 39-53
Author(s):  
V. A. Potapov ◽  
A. A. Sanko
Keyword(s):  
Gas Turbine ◽  
Axial Flow ◽  
Erosive Wear ◽  
Gas Turbine Engine ◽  
Compressor Blades ◽  
Turbine Engine ◽  
Axial Flow Compressor ◽  
Multi Stage ◽  
Rotor Wing ◽  
Flow Compressor

The construction and useful practice of gas-turbine engine diagnosis systems depend largely on the availability of the engine mathematical models and its certain components in their structure. Utilization of multi-stage axial flow compressor performance with account for erosive wear of its parts during the operation fundamentally raises possibilities of such systems as erosive wear of flow channel, blade rings of impellers and vane rings of multi-stage compressor is a common cause of preschedule gas-turbine engine detaching from an aircraft. As evidenced by various contributions presented in the article, special emphasis on abrasive wear impact assessment on axial flow compressor performance is placed upon rotor-wing turbo-shaft engine due to their particular operating conditions. One of the main tasks in the process of mathematic simulation of an axial flow compressor blade ring is consideration of its wear type that again has a nonlinear distribution along the level of the blade. In addition, wear rate at entry and exit blade edges often have different principles. Detecting of these principles and their consideration when constructing the compressor mathematical model is a crucial task in diagnostic assessment and integrity monitoring of rotor-wing turbo-shaft engine in operation. The article represents a concept to an estimate nonlinear erosive wear effect of axial flow compressor blades on its performance based on the three-dimensional flow approach in the gas-air flow duct of compressor with a formulation of the blade rings. This approach renders possible to take into account the nonlinearity of the compressor blades wear during their operation. Through the example of the inlet compressor stage of a rotor-wing aircraft gas-turbine engine, the engine pump properties predictions with different kind of rotor blade wear have been presented.

Influence of Secondary Inertia Terms on Natural Frequencies of Rotating Beams

1955 ◽  
Vol 22 (4) ◽  
pp. 587-591
Author(s):  
J. L. Bogdanoff
Keyword(s):  
Gas Turbine ◽  
Cantilever Beam ◽  
Natural Frequencies ◽  
Axial Flow ◽  
Rotating Disk ◽  
Compressor Blades ◽  
Disk Radius ◽  
Small Motion ◽  
Axial Flow Compressor ◽  
Flow Compressor

Abstract The equations of small motion of a straight cantilever beam attached to the rim of a rotating disk are determined assuming the Bernoulli-Euler theory of bending and the Saint Venant theory of torsion are valid, the mass and elastic axes coinciding and retaining all inertia terms. Influence of the secondary inertia terms on the fundamental torsional and lateral frequencies is then examined at two angular settings for a uniform beam having a length to disk-radius ratio in the range usually encountered in gas-turbine buckets and axial-flow compressor blades.

scholarly journals Three-Dimensional Design of Axial Flow Compressor Blades Using the Ball-Spine Algorithm

2015 ◽  
Vol 8 (4) ◽  
pp. 683-691 ◽  
Author(s):  
Ali Madadi ◽  
M.J Kermani ◽  
M. Nili-Ahmadabadi ◽  
◽  
◽  
...  
Keyword(s):  
Three Dimensional ◽  
Axial Flow ◽  
Compressor Blades ◽  
Axial Flow Compressor ◽  
Flow Compressor

scholarly journals A DESIGN OF AXIAL-FLOW COMPRESSOR BLADES WITH INCLINED STREAM SURFACE AND VARYING AXIAL VELOCITY

1979 ◽  
Vol 22 (171) ◽  
pp. 1190-1197
Author(s):  
Masahiro INOUE ◽  
Takefumi IKUI ◽  
Yoshihisa KAMADA ◽  
Mitsuo TASHIRO
Keyword(s):  
Axial Velocity ◽  
Axial Flow ◽  
Compressor Blades ◽  
Stream Surface ◽  
Axial Flow Compressor ◽  
Flow Compressor
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