PSI - Issue 11

First page Table of contents Previous page 149 Next page Last page

A A

vailable onlin Sci vailable onlin Sci

e at www.scie enceDire e at www.scie enceDire

ncedirect.com ect ncedirect.com ect

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at www.sciencedirect.com ienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Structu al Integrity 11 (2018) 1 7–113 Structural Integ rity Procedia 00 ( 2018) 000–000 Structural Integ rity Procedia 00 ( 2018) 000–000

www.elsevier. www.elsevier.

com/locate/proce com/locate/proce

dia dia

www.elsevier.com/locate/procedia

XI XI

E V Internati Evaluatio E V Internati Evaluatio

onal Confer on of the onal Confer on of the

ence on Bu infrare ence on Bu infrare

ilding Path ed therm e detect a a, *, C.F. ilding Path ed therm e detect a a, *, C.F.

ology and C ography ion in bu ology and C ography ion in bu

onstructio techniq onstructio techniq

ns Repair – ue for c ns Repair – ue for c

CINPAR 2 apillarity CINPAR 2 apillarity y

018 018

XV Portuguese Conference on Fracture, PCF 2016, 10-12 February 2016, Paço de Arcos, Portugal Thermo-mechanical modeling of a high pressure turbine blade of an airplane gas turbine engine P. Brandão a , V. Infante b , A.M. Deus c * a Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal b IDMEC, Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal c CeFEMA, Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal Abstract During their operation, modern aircraft engine components are subjected to increasingly demanding operating conditions, especially the high pressure turbine (HPT) blades. Such conditions cause these parts to undergo different types of time-dependent degradation, one of which is creep. A model using the finite element method (FEM) was developed, in order to be able to predict the creep behaviour of HPT blades. Flight data records (FDR) for a specific aircraft, provided by a commercial aviation company, were used to obtain thermal and mechanical data for three different flight cycles. In order to create the 3D model needed for the FEM analysis, a HPT blade scrap was scanned, and its chemical composition and material properties were obtained. The data that was gathered was fed into the FEM model and different simulations were run, first with a simplified 3D rectangular block shape, in order to better establish the model, and then with the real 3D mesh obtained from the blade scrap. The overall expected behaviour in terms of displacement was observed, in particular at the trailing edge of the blade. Therefore such a model can be useful in the goal of predicting turbine blade life, given a set of FDR data. ract ture problems ng financial lo market, infrar inspect large a cabili y for m ing that prese ctions were ca ble to verify th m tion ab ut p -which occur es, thermograp of material whe right © 2018 E review under r J a Univers b U are very frequ sses and damag red thermograph reas besides b oisture detectio nted evident s a ried out duri at infrared ther roblem severi when these va hy presents m re an issue tak lsevier B.V. A esponsibility o moistur .H.A Roch idad Privada de niversidade de P ent in building es, and presen y has the capa eing fast and n by capillari igns of moistu g rainy season mography c n ty. The th rma lu are at the any limitations es place. ll rights reserve f the CINPAR l Valle, Calle Gu ernambuco, Av. A s and, in most nting difficultie city to be appli easy. In this ty in building re by capillari , when this typ n accurately dete l radient betw e highest level- , as it is influe d. 2018 organizer Santos b , Y uillermina Martín gamenon Maga cases, are onl s for repairing ed for this type sense, this arti s. Work meth ty as well as pe of manifesta ct are s affect een affected a - as well s tim nced by envir s uildings .V. Póvoas ez s/n, Tiquipaya lhães, Recife, Br y visible when to owners. Am of problem, si cle is intended odology was d potential deve tion develops t d by humidity and intact area es not suitabl onmental cond b , Bolivia azil they are in ad mong nondestru nce it can ident to verify inf developed throu elopment of th he most. Durin . However, it d s may indicate e for this activ itions, inspecti dvanced stages ctive tests ava ify hidden prob rared thermog gh inspection is type of pro g t st period, i o no provid e the st inspe vity. Despite fi on schedule an s, thus ilable lems raphy n of a oblem. t was e any ction inding d the Copyright © 2018 Elsevier B.V. All rights r served. Peer-review under responsibility of the CINPAR 2018 orga izers Abst Mois causi in the and ppli build Inspe possi infor times failur type Copy Peer ract ture problems ng financial lo market, infrar inspect large a cability for m ing that prese ctions were ca ble to verify th mation about p -which occur es, thermograp of material whe right © 2018 E review under r J a Univers b U are very frequ sses and damag ed thermograph areas besides b oisture det ctio nted evident s rried out durin hat infrared ther roblem severi when these va hy presents m re an issue tak lsevier B.V. A esponsibility o moistur .H.A Roch idad Privada de niversidade de P ent in building es, and presen y has the capa eing fast and n by capillari igns of moistu g rainy season mography ca ty. The therma lues are at the any limitations es place. ll rights reserve f the CINPAR l Valle, Calle Gu ernambuco, Av. A s and, in most ting difficultie acity to be appli easy. In this ty in building re by capillari , when this typ accurately dete l gradient betw highest level s, as it is influe d. 2018 organizer Santos b , Y illermina Martín ga enon Maga cases, are onl s for repairing ed for this type sense, t is arti gs. Work meth ty as well as pe of manifesta ct areas affect een affected a as well as tim enced by envir s uildings .V. Póvoas ez s/n, Tiquipaya lhães, Recife, Br y visible when to owners. Am f problem, si cle is intended odology was d p tential deve tion develops t ed by humidity nd intact area es not suitabl onmental cond b , Bolivia azil they are in ad ong nondestru ince it ca ident to verify i f eveloped throu elopment of th the ost. Durin . However, it d s may indicate e for this activ itions, inspecti vanced stages uctive tests ava ify hidden prob rared th rmog gh inspecti n is type of pro g test period, i es not pr vid e the best inspe vity. Despite fi ion sch dule an , thus ailable lems raphy of a oblem. t was de any ction nding nd the Abst Mois causi in the and appli build Inspe pos i infor times failur type Copy Peer Keyw

ords: Infrared th ords: Infrared th

ermography; path ermography; path

ological manifes ological manifes

tations; moisture tations; moisture

. .

Keyw

Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation.

2452 Peer-r 2452 Peer-r * C E * C E 3216 Copyright evi w u er resp 3216 Copyright eview under resp Corresponding aut -mail address: ja orresponding aut E-mail ad ress: ja

B.V. All rights re CINPAR 2018 o B.V. All rights re CINP R 2018 o 5983072; fax: +5 .edu 5983072; fax: +5 .edu

91 75983072. 91 75983072.

served. rganizers. served. rganizers.

* Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt

Made with FlippingBook Annual report maker