Finite Element Stress Analysis of Airplane Seat

Year 2021, , 6 - 13, 20.03.2021

Serhat Erden Paşa Yayla

https://doi.org/10.26701/ems.799180

Cited By: 2

Abstract

Finite element method (FEM) is frequently used in the seat industry, as well as in the aircraft seat industry, which is a sub-branch of it, especially in the last 10-15 years. Developments in finite element (FE) analysis have enabled safer and cheaper designs to be created in the seat industry. The accuracy of the finite element analysis performed while using this method is extremely important. For this reason, in creating the finite element model, some important parameters must be selected and processed correctly for the model to give the correct result. These parameters can be listed as element size, time scale, analysis type, and material model. The verification of the Finite element analysis (FEA) results is usually done using experimental methods. It is known that in the finite element analysis results almost equivalent to experimental results are obtained when the aforementioned parameters are modeled correctly. This study aims to perform static stress analysis and topology optimization of an airplane seat using the FEM. The static stresses and displacements created at the seat are calculated under simulated loading conditions. Thanks to the topology optimization study, the weight of the airplane seat is minimized by a 30% without sacrificing seat safety. A comparison of static stresses obtained from the FE and analytical models indicates a reasonable correlation, demonstrating confidence in our FE analysis.

Keywords

Finite element analysis, Aircraft seat, Topology optimization, Stress analysis

Thanks

The authors would like to thank TSI Aviation Seats Company for their valuable contribution during the preparation of this article.

References

• Sriram, T. C. (2018). Effect of Anthropometric Variability on Middle-Market Aircraft Seating. International Journal of Aviation, Aeronautics, and Aerospace, 5(1), 7. 10.15394/ijaaa.2018.1208
• Miller, E. L., Lapp, S. M., Parkinson, M. B. (2019). The effects of seat width, load factor, and passenger demographics on airline passenger accommodation. Ergonomics, 62(2), 330-341. 10.1080/00140139.2018.1550209
• Chang, Y. C., Chen, C. F. (2012). Meeting the needs of disabled air passengers: Factors that facilitate help from airlines and airports. Tourism Management, 33(3), 529-536. 10.1016/j.tourman.2011.06.002
• Airplane Seat Types, https://www.aircraftcompare.com/blog/types-of-airplane-seats/ (Access date: 16.01.2020)
• Caputo, F., De Luca, A., Marulo, F., Guida, M., Vitolo, B. (2018). Numerical-experimental assessment of a hybrid FE-MB model of an aircraft seat sled test. International Journal of Aerospace Engineering, 2018. 10.1155/2018/8943826
• Dhole, N., Yadav, V., Olivares, G. (2012). Certification by analysis of a typical aircraft seat. National Institute for Aviation Research, 1-12.
• Bhonge, P., Lankarani, H. (2008). Finite element modeling strategies for dynamic aircraft seats (No. 2008-01-2272). SAE Technical Paper. 10.4271/2008-01-2272
• Hutton, D. V. (2004). Fundamentals of Finite Element Analysis, 1st Ed., McGraw Hill Higher Education, USA.
• Dede, G. (2016). Development of Seat Design and Simulation o Seating Systems’ Tests According to European and Us Regulations For Seats. MS thesis. Çukurova University Institute of Natural and Applied Sciences, (2016). Altair University (2014). Practical Aspects of Structural Optimization, A Study Guide.
• Callister W. D. and Rethwisch, D. G. (2009). Materials Science and Engineering, 8. Edition, John Wiley and Sons.
• Url, < http://www.value-design-consulting.co.uk/boundary-conditions.html (Access date:20.01.2020)
• HyperMesh Tutorials, https://altairhyperworks.in/edu/contest/aoc/2013/tutorials-and-downloads.html#.XioHF8gzbIU (Access date: 20.01.2020)
• Kelleci, Z. E., (2020). Personal Meeting, TSI Aviation Seats Company