Parameters correlation study to investigate the effects of geometric variables on the safety of bolted flange connections

Date

2015-09-12

Author

Yildirim, Alper
Akay, Ahmet Arda
Gulasik, Hasan
Çöker, Demirkan
Gürses, Ercan
Kayran, Altan

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Bolted flange connections are commonly utilized structures in aircraft engine designs by means of assembling two or more circular casings to each other. Minimizing the weight of the structure without compromising the safety is the main intention in the design of bolted flange connections. Bolt size, the number of bolts used, bolt locations, casing thickness, and flange thickness are the critical geometric parameters that drive the design. Determining the significance of the geometrical parameters aids in both minimizing the weight and ensuring the structural safety. In this paper, parameters correlation study has been conducted to determine the sensitivity of selected geometric parameters in the safety of bolts and flanges. The influences of the geometric variables are compared according to equivalent Mises flange stress and force reaction occurring in the bolt when the structure is subjected to an axial tensile force. Parameters Correlation tool of ANSYS Workbench has been utilized for this purpose, in which parametric analyses are run by changing geometric parameters in a systematic way within the specified upper and lower limits of the design variables that define the bolted flange connection. The results of the parametric sets are exhibited in visual charts and numerical correlation matrices to determine the significance levels of the selected geometric variables on the analysis results. The outcome of the study is evaluated and discussed in the light of theoretical approaches in literature.

URI

https://hdl.handle.net/11511/77239

Conference Name

Ankara International Aerospace Conference, (10 - 12 Eylül 2015)

Collections

Department of Aerospace Engineering, Conference / Seminar

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Citation Formats

A. Yildirim, A. A. Akay, H. Gulasik, D. Çöker, E. Gürses, and A. Kayran, “Parameters correlation study to investigate the effects of geometric variables on the safety of bolted flange connections,” presented at the Ankara International Aerospace Conference, (10 - 12 Eylül 2015), Ankara, Türkiye, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/77239.