Defining the Field of Existence of Shrouded Blades in High-Speed Gas Turbines

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Belousov, Anatoliy I.^1 ; Nazdrachev, Sergeiy V.^1

Samara National Research University, Moskovskoe shosse 34, Samara

443086, Russia^1

关键词: Analytical evaluation;    Characteristic sections;    Cross sectional area;    Early design stages;    High Speed;    Independent parameters;    Law of distribution;    Shrouded blades;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012002/pdf
DOI  :  10.1088/1757-899X/302/1/012002

学科分类：航空航天科学

来源: IOP

【 摘 要 】

This work provides a method for determining the region of existence of banded blades of gas turbines for aircraft engines based on the analytical evaluation of tensile stresses in specific characteristic sections of the blade. This region is determined by the set of values of the parameter, which forms the law of distribution of the cross-sectional area of the cross-sections along the height of the airfoil. When seven independent parameters (gas-dynamic, structural and strength) are changed, the choice of the best option is proposed at the early design stage. As an example, the influence of the dimension of a turbine on the domain of the existence of banded blades is shown.