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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 31176


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10011807
Hybrid Finite Element Analysis of Expansion Joints for Piping Systems in Aircraft Engine External Configurations and Nuclear Power Plants
Authors:
Abstract:
This paper presents a method to analyze the stiffness of the expansion joint with structural support using a hybrid method combining computational and analytical methods. Many expansion joints found in tubes and ducts of mechanical structures are designed to absorb thermal expansion mismatch between their structural members and deal with misalignments introduced from the assembly/manufacturing processes. One of the important design perspectives is the system’s vibrational characteristics. We calculate the stiffness as a characterization parameter for structural joint systems using a combined Finite Element Analysis (FEA) and an analytical method. We apply the methods to two sample applications: external configurations of aircraft engines and nuclear power plant structures.
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References:

[1] J. Medeiros, J. L. Veiga, J. C. Veiga, “Analysis of FCC Expansion Joints Movement Test,” Proceedings of the ASME 2009 Pressure Vessels and Piping Division Conference, 2009.
[2] I. Villagomez, J.L. Gonzalez, J.J. Trujillo, D. Rivas, “Fatigue Analysis in a Bellow Expansion Joint Installed a Heat Exchanger,” International Conference on New Trends in Fatigue and Fracture, pp. 165-171, 2017.
[3] Q. Liu and G. Jiao, “A Pipe Routing Method Considering Vibration for Aero-engine using Kriging Model and NSGA-II,” IEEE Access, vol. 6, pp. 6286-6292, Junary 2018
[4] J. Spychala, M. Szczekala, M. Zokowski, “Diagnosis of the Jet-Propelled Engine by Vibration Analysis,” Transport Problems, vol. 4, no. 3, part 2, 2009.
[5] M. Merikoski, “Pipe Vibrations in Nuclear Power Plants,” Tampere University of Technology, Master of Science Thesis, 2017.
[6] X. Fu, C. Wang, S. Yu, etc., “Analysis of vibration and vibration-elimination of nuclear-powered pipe,” 2011 Second International Conference on Mechanic Automation and Control Engineering. 2011
[7] B. Sujatha, B. A. Kumar, “Effect of Expansion Joints on Dynamic analysis of Structure,” International Journal of Science Engineering and Advance Technology, vol. 4, no. 2, 2016.
[8] K. N. Santhosh, Y. Yihun, K.L. Hamid, “Finite Element Analysis and Vibration Testing of a Simple Replicate Beam-Type Aircraft Wing with and without Secondary Structure Attached,” International Journal of Aeronautical Science & Aerospace Research, vol. 2, no. 3, pp. 27-38, 2015.
[9] https://www.pipelinedubai.com/how-to-get-high-quality-bellow-expansion-joint.html
[10] https://promarchive.ru/en/catalog/hydraulics_-_pneumatics/pipes_tubes_and_fittings/expansion_joints/lateral_expansion_joint_-_6_-_63_bar/
[11] http://www.megaflexon.com/sub/product/MetalExpansionJoint/GimbalType.asp
[12] D.H. Huang, D.K. Huzel, “Design of Liquid Propellant Rocket Engine,” Report no. NASA-SP-125, published by NASA, 1971. (https://ntrs.nasa.gov/citations/19710019929)
[13] https://www.geaviation.com/commercial/engines/ge90-engine
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