Design optimization of gas turbine blades with geometry and natural frequency constraints

1989 ◽  
Vol 32 (1) ◽  
pp. 113-117 ◽  
Author(s):  
Cheu Tsu-Chien ◽  
Bo Ping Wang ◽  
Chen Ting-Yu
Keyword(s):  
Design Optimization ◽  
Gas Turbine ◽  
Natural Frequency ◽  
Turbine Blades ◽  
Frequency Constraints ◽  
Gas Turbine Blades

scholarly journals Design Optimization of Gas Turbine Blades With Geometry and Natural Frequency Constraints

1988 ◽  
Author(s):  
Tsu-Chien Cheu ◽  
Bo Ping Wang ◽  
Ting-Yu Chen
Keyword(s):  
Finite Element ◽  
Linear Programming ◽  
Gas Turbine ◽  
Natural Frequency ◽  
Turbine Blades ◽  
Interactive System ◽  
Sequential Linear Programming ◽  
Frequency Constraints ◽  
Gas Turbine Blades ◽  
Design Variables

In this paper an automated procedure is presented to obtain the minimum weight design of gas turbine blades with geometry and multiple natural frequency constraints. The objective is achieved using a combined finite element-sequential linear programming, FEM-SLP technique. Thickness of selected finite elements are used as design variables. Geometric constraints are imposed on the thickness variations such that the optimal design has smooth aerodynamic shape. Based on the natural frequencies and mode shapes obtained from finite element analysis an assumed mode reanalysis technique is used to provide the approximate derivatives of weight and constraints with respect to design variables for sequential linear programming. The results from SLP provide the initial design for the next FEM-SLP process. An example is presented to illustrate the interactive system developed for the optimization procedure.

UDIMET L-605

Alloy Digest ◽  
2004 ◽  
Vol 53 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Gas Turbine ◽  
Oxidation Resistance ◽  
Turbine Blades ◽  
Heat Treating ◽  
Gas Turbine Blades ◽  
Temperature Performance

Abstract Udimet L-605 is a high-temperature aerospace alloy with excellent strength and oxidation resistance. It is used in applications such as gas turbine blades and combustion area parts. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: CO-109. Producer or source: Special Metals Corporation.

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