JATMv4n1 p51-60 Methodology for Structural Integrity Analysis of Gas Turbine Blades
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Methodology for Structural Integrity Analysis of Gas Turbine Blades Tiago de Oliveira Vale*, Gustavo da Costa Villar, João Carlos Menezes ,QVWLWXWR 7HFQROyJLFR GH $HURQiXWLFD 6mR -RVp GRV &DPSRV63 ± %UD]LO Abstract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¿QLWH HOHPHQW PRGHO KDV EHHQ FUHDWHG IRU WKH SXUSRVH RI DVVHVVLQJ VWUHVV DW WKH MRLQW UHJLRQ FRQQHFWLQJ WKH EODGH WR WKH GLVF VORW 3DUWLFXODU DWWHQWLRQ ZDV SDLG WR WKH JHRPHWULF PRGHOLQJ RI WKH ³¿UWUHH´ ¿[LQJ ZKLFK LV QRZ XVHG LQ WKH PDMRULW\ RI JDV WXUELQH HQJLQHV 7KLV VWXG\ KDV EHHQ SHUIRUPHG XVLQJ WKH FRPPHUFLDO VRIWZDUH $16<6 7KH GLVF DQG EODGH DVVHPEO\ DUH IRUFHG WR PRYH ZLWK D FHUWDLQ URWDWLRQDO YHORFLW\ &RQWDFW FRQQHFWLRQV DUH SUHGLFWHG RQ WKH FRPPRQ IDFHV RI WKH EODGH DQG RQ WKH GLVF DW WKH URRW 6ROXWLRQV FDQ EH REWDLQHG WR DOORZ WKH HYDOXDWLRQ RI VWUHVVHV 5HVXOWV FDQ EH FRPSDUHG ZLWK WKH PHFKDQLFDO SURSHUWLHV RI WKH DGRSWHG PDWHULDO Keywords: 6WUHVV $QDO\VLV )LQLWH (OHPHQW 0HWKRG *DV 7XUELQH %ODGH )LUWUHH -RLQW INTRODUCTION 2QH RI WKH PDLQ IDFWRUV FRQFHUQLQJ PHFKDQLFDO LQWHJULW\ RI DHURHQJLQH WXUELQHV LV WKH LQWHUIDFH UHJLRQ EHWZHHQ WKH EODGH DQG WKH URWRU GLVF 6WUHVVHV JHQHUDWHG LQ WKLV UHJLRQ DUH PDLQO\ SURGXFHG E\ WKH FHQWULIXJDO IRUFH UHVXOWLQJ IURP WKH URWDWLRQDO VSHHG RI URWRU PDVV RI WKH EODGH WKHUPDO VWUHVV DQG DQG EHQGLQJ ORDGV DQG WRUVLRQ GXH WR WKH JDV SUHVVXUH $FFRUGLQJ WR 0HJXLG et al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¿UWUHH IDVWHQHUV DUH LPSOHPHQWHG IRU WKH\ SURYLGH DGHTXDWH PXOWLSOH DQG ODUJHU DUHDV RI FRQWDFW EHWZHHQ WKH EODGH DQG WKH GLVF ZKLFK UHVXOWV LQ EHWWHU ______________________ 5HFHLYHG $FFHSWHG DXWKRU IRU FRUUHVSRQGHQFH WLDJRYDOH#\DKRRFRPEU3o 0DO (GXDUGR*RPHV&(36mR-RVpGRV&DPSRV63%UD]LO VWUHVV GLVWULEXWLRQ RQ WKH VHYHUDO WHHWK DFFRUGLQJ WR .DQWK 7KH SUHVHQW VWXG\ IRFXVHG RQ WKH VWXG\ RI VWUHVVHV DULVLQJ IURP WKH FHQWULIXJDO ORDGLQJV LQ D ¿UWUHH MRLQW XVLQJ D ' )LQLWH (OHPHQW PRGHO LQ WKH FRPPHUFLDO FRGH $16<6 (DUOLHU ZRUNV FDUULHG RXW E\ 6LQJK DQG 5DZWDQL DE SUHVHQW UHVXOWV RI SKRWRHODVWLF VWUHVV DQDO\VLV RI ¿UWUHH DVVHPEOLHV 9HU\ IUHTXHQWO\ WKLV NLQG RI H[SHULPHQWDO WHFKQLTXH LV XVHG WR YDOLGDWH QXPHULFDO UHVXOWV REWDLQHG E\ WKH )LQLWH (OHPHQW 0HWKRG ,Q WKH ZRUN RI 3DUNV DQG 6DQIRUG WKH IXOO GLVWULEXWLRQ RI VWUHVV ¿HOG LQ D GRYHWDLO MRLQW RI D WXUELQH ZDV DVVHVVHG XVLQJ WKH SKRWRHODVWLF PHWKRG 7KH UHVXOWV DOORZHG WKH UHPRYDO RI PDWHULDO LQ WKH LQWHUIDFH UHJLRQ DQG WKXV REWDLQHG UHGXFWLRQ LQ VWUHVV FRQFHQWUDWLRQ DV ZHOO DV WR UHGXFH WKH ZHLJKW RI WKH FRPSRQHQW Uchino et al GHYHORSHG D ' SKRWRHODVWLF DQDO\VLV LQ D GRYHWDLO MRLQW RI D JDV WXUELQH GLVF JURRYH 7KH DXWKRUV SUHVHQWHG UHVXOWV RI VWUHVV YDULDWLRQ DQG FRPSDUHG WKHP ZLWK ' ¿QLWH HOHPHQW DQDO\VLV DORQJ WKH WKLFNQHVV 7KH ZRUN VKRZV WKH LQÀXHQFH RI WKH LQFOLQDWLRQ VNHZ DQJOH IURP WR 5HVXOWV IRU VNHZ DQJOH RI SUHVHQW WLPHV KLJKHU VWUHVV FRPSDUHG WR WKH VWUDLJKW VNHZ GRL MDWP -$HURVS 7HFKQRO 0DQDJ 6mR -RVp GRV &DPSRV 9RO 1R SS -DQ 0DU
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Transcript of JATMv4n1 p51-60 Methodology for Structural Integrity Analysis of Gas Turbine Blades
Methodology for Structural Integrity Analysis of Gas Turbine BladesTiago de Oliveira Vale*, Gustavo da Costa Villar, João Carlos Menezes
Abstract:
Keywords:
INTRODUCTION
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Uchino et al
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VALIDATION OF THE METODOLOGY BY 3D FINITE ELEMENT ANALYSIS
Analysis of the dovetail rim region
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Boundary conditions
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Contact elements
Mesh
a a
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3D NONLINEAR FINITE ELEMENT ANALYSIS IN FIR-TREE JOINT
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RESULTS
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Case
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3
CONCLUSIONS
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case 3 case 3
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REFERENCES
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