Analysis of causes of casting pedestal failures and the measures for increasing its residual lifetime

被引：10

作者：

Trebuna, F. ^{[1
]}

Simcak, F. ^{[1
]}

Bocko, J. ^{[1
]}

Pastor, M. ^{[1
]}

机构：

[1] Tech Univ Kosice, Dept Appl Mech & Mechatron, Kosice 04200, Slovakia

来源：

ENGINEERING FAILURE ANALYSIS | 2013年 / 29卷

关键词：

Casting pedestal; Wedge joint; Failure of traverse beams;

D O I：

10.1016/j.engfailanal.2012.02.008

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The paper deals with numerical and experimental analysis of crack initiations causes in the supporting structure of casting pedestal that serves as a mean for transportation of ladles with liquid steel in the technological flow between converters and machines for continuous casting of slabs. From the results of strain-gage measurements accomplished under simulated and operational regimes can be concluded that supporting structure of pedestal is exposed to considerable dynamical loading. On the basis of analysis was found out that taking into account previous loading history of pedestal, the lifetime of traverse beam is exhausted. Consequently, the modifications of pedestal structure were proposed with the aim to allow its further operation. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：27 / 37

页数：11

共 8 条

[1] Cracks, repair and reconstruction of bucket wheel excavator slewing platform [J].

Bosnjak, Srdan ;

Petkovic, Zoran ;

Zrnic, Nenad ;

Simic, Goran ;

Simonovic, Aleksandar .

ENGINEERING FAILURE ANALYSIS, 2009, 16 (05) :1631-1642

[2]

DEJL Z, 2000, KONSTRUKCE STROJU ZA

[3]

Juhas P, 1998, 731401 STN UNAMB

[4] Decreasing of vibration amplitudes of the converter pedestal by design changes and changes in prestress of the bolted joints [J].

Trebuna, F. ;

Simcak, F. ;

Bocko, J. .

ENGINEERING FAILURE ANALYSIS, 2009, 16 (01) :262-272

[5]

TREBUNA F, 2007, PRIRUCKA EXPT MECH

[6]

Trebuna F., 2004, ODOLNOST PRVKOV MECH

[7]

Trebuna F., 2010, RIESENIE PREDLZENIA

[8] Failure analysis of mechanical elements in steelworks equipment by methods of experimental mechanics [J].

Trebuna, Frantisek ;

Simcak, Frantisek ;

Bocko, Jozef ;

Trebuna, Peter .

ENGINEERING FAILURE ANALYSIS, 2010, 17 (04) :787-801

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