Nickelbased super alloys are excellent for their hightemperature and stressresistant prope. Multidisciplinary design optimization of turbine disks. Mechanical design of turbojet engines an introduction. The gas turbine operates on an open cycle consisting of a compressor, a combustor, and a turbine combined in series figure 2.
Considering the actual aerothermalstructure coupled environment, the main challengefor the designersis to produce an optimum. Zhou chuanyue, zou jingxiang, wen xueyou analysis of the vibration characteristics of a gas turbine bladed disc. An analytical study was performed on a novel disk design to replace the existing highpressure turbine, stage 1 disk on the cf650 turbofan engine. Results for gas turbine design equipment from advantage, aerospace, atgi halo and other leading brands. To substantiate how open standards are applicable to gas turbine.
Zhao weiqiang, liu yongxian, lu mowu fea on vibration characteristics of a gas turbine bladedisc. In this paper, the blisk of gas turbine has been modeled in catia v6 software. Research on unbalance response characteristics of gas turbine. Turbine blades are one of the various components constituting the turbine compartment of a gas turbine system.
The design of aero engine turbine disks, which are working under high thermal and centrifugal loads, is an interactive and multidisciplinary process that includes several disciplines, such as aerodynamics, structural analysis, mechanical design, and heat transfer etc. Simple intuitive graphical user interface to create cycles and configure components. On which catia v5 is used for design of solid model of the turbine blade with the help of the spline and extrude options. Jul 01, 2016 the software allows simple and rapid assembly of design with builtin detailed physics and aerothermodynamic properties of the gas turbine components. Gas turbines market by technology, application, and region global forecast to 2022 the gas turbines market is expected to grow from an estimated usd 17. The deformation and fracture of gas turbine parts like turbine blades which are subjected to high temperature and other mechanical loads, depends mainly on temperature and time and hence due to creep. Aerospace turbines must withstand extreme temperatures and pressure differences. Model virtually any gas turbine cycle for design, steadystate or transient analysis. Gas turbine design software turbomachinery design software. Preliminary studies were conducted on seven candidate disk design concepts. Turbine disc article about turbine disc by the free dictionary. Jan 03, 2018 mhps also has hit the 64% efficiency mark.
A preliminary design system for turbine discs turbo expo. Proosis, propulsion object oriented simulation software. To evaluate the buckling resistance of the blade concepts, three tools were used. The design and analysis of first stage gas turbine blade with. Mentors portfolio of cfd software delivers fast, accurate and design centric simulation to global players in many industries, including automotive, electronics, power, process and manufacturing. Full thermochemical gas model allows specification of the gas and fuel composition. They convert the chemical potential energy of the fuel to mechanical energy. Verification of overspeed and burst margin limits inaero. Cad based shape optimization for gas turbine component design. A computer code for gas turbine engine weight and disk life estimation. Axstream progresses through a 1d inverse task solver optimizer, to continue with meanline 1d and axisymmetric 2d analysis, profiling and 3d blade design, 3d finite element analysis fea for structural calculations, secondary air flow hydraulic and thermal calculations, rotor design, bearing analysis, rotor dynamics and 3d cfd calculations. Development of turbine disk materials for aircraft engines. The element has plasticity, hyper elasticity, stress stiffening, creep, large deflection, and large strain capabilities. Aerodynamic design of a gas turbine rotor blade external final.
These are complex components in hard to machine alloys such as inconel 706 and generally feature profiled pockets with various difficult clearance requirements. The axstream platform is a multidisciplinary turbomachinery design, analysis and optimization software tool. Turbine disks are manufactured by cast and wrought process. This design allows a hot gas path inspection without cover lift. To minimize air leakage, as well as hot gas ingestion into turbine disc cavities, brush seals were incorporated into the w501ats engine design at several locations. Design and analysis of gas turbine rotor blade using finite element method 79. This project summarizes the design, analysis and modification of the cooling passage in the gas turbine blade design.
Gas turbine disc a gas turbine is usually composed of a set of discs, fastened onto a shaft. This project summarizes the design and analysis of gas turbine blade, catia is used for design of solid model and ansys software for analysis for f. Mentor cfd delivers fluid flow and heat transfer simulation solutions that are used to optimize a design created with cad. Tests were carried out on test rigs for the different brush seal locations to develop effective, rugged, reliable, and long life brush seal systems. Wire edm for jet engine fir trees advances in wire edm electrical discharge machining technology have made it acceptable for machining critical aerospace parts. Fast aerodynamic design of a onestage axial gas turbine in. It may now become the preferred method for cutting turbine disc fir trees, a particularly demanding application that highlights the benefits of this machining process. Monitor engine coolingair flows to enable top performance. For example, upgrading to a new 7f advanced compressor and 3step aged turbine rotor will provide significant hot day mw up to 20% and heat rate improvement up to 3%, operational flexibility, and maintenance reductions with fieldreplaceable blades. The turbine blade functions by extracting as much energy as possible from the high temperature high pressure gases leaving the combustion chamber to power the compressor shaft, while in some systems, the turbine is also used to. Design and performance of a gasturbine engine from an. Brook park, ohio 44142 abstract two series of lowcyclefatigue lcf test data for two different groups of.
The gas turbine performance software on this website is useful for those working in the gas turbine industry, aircraft engine and airframe manufacturing, the airline industry, aircraft engine maintenance, power generation industry and for other operators of air, land and seabased gas turbines. Material selection for high pressure hp turbine blade of. Sgt58000hl heavyduty gas turbine gas turbines siemens usa. It also develops the power required to drive the compressor and other accessories. Zaretsky national aeronautics and space administration glenn research center cleveland, ohio 445 and richard august nyma, inc. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Aerodynamic design of a gas turbine rotor blade external. Objects in the concept design phase, the turbine disk design is usually based on twodimension fem analysis which could be divided into two parts as is seen in fig. This paper covers the development of new tools to improve the preliminary design phase of turbine disc, being a critical part of aircraft engines. This paper reveals a process and software application, which embodies the process, wherein both offer a measurable contribution to secondary airflow system. Gas turbine performance simulation, analysis and design software.
Optimization of turbine blade dovetail geometry tech briefs. Gas turbine engine secondary flow systems are sensitive to variation in part dimensions, clearances, flow coefficients, swirl ratios, head loss factors, tolerances, boundary conditions, etc. Journal of engineering for thermal energy and power, 2000, p. Inputs are consisted of blade pull, root chord, number of blades, flow path radius, etc. The turbine plays a vital role in major industries worldwide, namely in electricity generation and the aerospace industry.
The axstream s axial turbine profiler and blade design software module is used to create and edit 3d airfoils. Research paper the design and analysis of gas turbine blade. The 17stage axialflow compressor with variablepitch inlet guide vanes enhances peak load operation and supports frequency stabilization. In 2017, mhps announced the introduction of a gas turbine capable of 400 mw simple cycle, and 575 mw and 64% efficiency combined cycle, the biggest. Hydraulic clearance optimization hco, an active clearance control, ensures robustness and low turbine degradation at startup. The software allows simple and rapid assembly of design with builtin detailed physics and aerothermodynamic properties of the gas turbine components. Gas turbine rotor life management and extension ge power. By brent a gregory and oleg moroz, creative power solutions cps in a modern gas turbine, up to about 20% of the main compressor inlet flow is bled off to perform cooling and sealing of hotsection components. The preliminary design phase of a turbine one of most important phases of the overall design, since it sets the tone for all subsequent design stages and results is nowadays often carried out by hand. Design and computational analysis of 1 kw tesla turbine. Axial turbine design software turbomachinery design software. Southwest research institute swri provides expertise and extensive laboratory facilities to meet the challenges imposed in the design, assembly, and reliable operation of turbines. This paper describes design modeling, structural and dynamic analysis of blisk in gas turbines.
A worker with a disc for a gas turbine at the siemens gas turbine plant. Proosis has all the capabilities of ecosimpro plus some additional capabilities required for simulating aeronautical gas turbines such as performance maps handling. Proosis is currently the stateoftheart tool for advanced gas turbine engine performance and is essentially an acronym for propulsion object oriented simulation software. Especially turbine disks are one of the most important parts so that many studies have been conducted. This software significantly increases the ability of the designer simulation engineer to utilize hisher creativity and innovative skills to architect and configure gas turbine engine systems. The finite element analyses were carried out to check the mechanical and structural integrity of the disc in a systematic order using the commercially validated fe package software. A wide range of geometric tools and interactive charts allows users to configure the axial turbine s blades easily and in a short amount of time. The sixth disc is a free turbine disc, which consists of an inconel alloy to withstand the high temperature loads from the postcombustion gases. Cad based shape optimization for gas turbine component design 653 fig.
The reliability of a gas or steam turbine is strongly dependent on the structural design of its blades. Probabilistic analysis of aircraft gas turbine disk life and reliability matthew e. Our steam turbines serve a vast range of industries ranging from food and sugar to biomass and textiles and beyond. Multiple options are available for power and gas turbine rotor efficiency upgrades. A wide variety of turbine disc options are available to you, such as gasoline. The turbine disk integrated with various amount of radially rotating miniature heat pipes model was developed in spaceclaimansys, 3d design modeling. Environment within a gas turbine 50 000g centrifugal. The research presented in this work is mainly concerned with the transient thermal analysis of a turbine disk integrated with rotating heat pipes utilizing ansys model, a finite element software. Gas turbine disc a gasturbine is usually composed of a set of discs, fastened onto a shaft.
Ppt turbines powerpoint presentation free to download. Free gas turbine simulation software download windows. Nonlinear finite element analysis of thermomechanical. Education software downloads gpal single shaft gas turbine simulator version 2 by gas path analysis ltd and many more programs are available for instant and free download. Nibase superalloys are applied for highpressure turbine disks. Previous work tesla turbine was patented by nikola tesla in 1903. How the technological requirements of the engine manufacturer have been translated into improvements in equipment, processing techniques, alloys, and quality control procedures has been discussed. Efficiency improvements mark advances in gas turbines. This design allows a hotgaspath inspection without cover lift.
The purpose of the thesis was to design a new rotor blade for the kth test turbine according to present design guidelines for gas turbines manufactured at siemens industrial turbomachinery in finspang. Multidisciplinary design optimization of turbine disks based. Pdf a computer code for gas turbine engine weight and disk. They are therefore made of advanced materials, such as nickelbased super alloys e. Sep 18, 2014 this paper covers the development of new tools to improve the preliminary design phase of turbine disc, being a critical part of aircraft engines. Stage one of a real gas turbine was used as a reference for the aerodynamic design providing a starting point for the project. Probabilistic analysis of aircraft gas turbine disk life and.
As the turbine rotates, the dovetail experiences centrifugal loading including contact pressure and mises stress. In 2017, mhps announced the introduction of a gas turbine capable of 400 mw simple cycle, and 575 mw and 64% efficiency combined cycle, the. The gas turbine is capable of worldclass fast cold starts and hot restarts due to the light and stiff rotor with internal cooling air passages and free thermal expansion of rotor and casing parts during transients. In landbased power generation units, turbine blades are connected to the turbine disk by a dovetail joint or fastener. The design of a 1 kw tesla turbine was carried using iterative process for head and discharge for main dimensions of the turbine.
Influence of the radial clearance of a squeeze film damper on the vibratory behavior of a single spool gas turbine designed for unmanned aerial vehicle applications. A probabilistic secondary flow system design process for gas. The robust 4stage turbine incorporates the latest blade and vane design for stable, improved performance. Analysis of turbine disc for creep life abhishek s makunte1 and ramesh b n1 corresponding author. Jul 01, 2016 turbine blades are one of the various components constituting the turbine compartment of a gas turbine system. Since the turn of the last century, steam turbine generators have earned an enviable reputation for economy and reliability in converting heat energy to electrical energy under the most exacting service conditions.
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