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Research Papers: Design Innovation Papers

Determination of Gimbal and Hinged Expansion Joints Reaction Moments

[+] Author and Article Information
José Carlos Veiga

e-mail: jccveiga@teadit.com.br

Nelson Kavanagh

e-mail: nkavanagh@teadit.com.br

Ana Maria F. Sousa

e-mail: edph@teadit.com.br
Teadit Juntas Ltda,
Campinas, SP 13054-750 Brazil

Jorivaldo Medeiros

e-mail: jorivaldo@petrobras.com.br

Jordana Luiza Veiga

e-mail: jordana@petrobras.com.br
Petrobras- Petroleo Brasileiro SA,
Research and Development Center – CENPES,
Rio de Janeiro, RJ 21941-915 Brazil

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the Journal of Pressure Vessel Technology. Manuscript received February 20, 2011; final manuscript received May 14, 2012; published online September 16, 2013. Assoc. Editor: William J. Koves.

J. Pressure Vessel Technol 135(5), 055001 (Sep 16, 2013) (8 pages) Paper No: PVT-11-1045; doi: 10.1115/1.4024435 History: Received February 20, 2011; Revised May 14, 2012

This paper proposes a method to estimate the actual reaction loads in gimbal and hinged metal bellows expansion joints. Friction and some media pressure forces, which are not considered in current Expansion Joint Manufactures Association (EJMA) standard calculations, are added to bellows spring rate to estimate the expansion joint movement reaction moment. The proposed calculation method is based upon pressure and movement tests of large size expansion joints.

Copyright © 2013 by ASME
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References

Figures

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Fig. 2

Gimbal expansion joint

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Fig. 3

Hinged expansion joint

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Fig. 8

Pin friction moment

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Fig. 9

Lateral pressure force

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Fig. 10

Bellows sides area differences, under angular movement

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Fig. 11

Bellows angular sector

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Fig. 12

Bellows angular view X-X

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Fig. 13

Differential areas

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Fig. 14

Sleeve seal centered

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Fig. 15

Sleeve seal not centered

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Fig. 18

Test result EJs 1–6 versus EJMA theory

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Fig. 19

Test result EJs 1–6 versus EJMA theory

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Fig. 20

Test result EJs 7 and 8 versus EJMA theory

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Fig. 21

Test result EJs 7 and 8 versus EJMA theory

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Fig. 22

Test result EJs 9–13 versus EJMA theory

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Fig. 23

Test result EJs 9–13 versus EJMA theory

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Fig. 24

Box and whisker plot

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Fig. 25

Means confidence intervals

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Fig. 26

MR histogram versus Weibull distribution

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Fig. 27

Test result EJs 1–6 versus theories

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Fig. 28

Test result EJs 1–6 versus theories

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Fig. 29

Test result EJs 7 and 8 versus theories

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Fig. 30

Test result EJs 7 and 8 versus theories

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Fig. 31

Test result EJs 9–13 versus theories

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Fig. 32

Test result EJs 9–13 versus theories

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