Effect of Cut-Out Shape on the Stresses in Aircraft Wing Ribs under Aerodynamic Load
DOI:
https://doi.org/10.37934/cfdl.13.11.8794Keywords:
Simulation, Stress Analysis, Wing ribs, Cut-outs, ANSYSAbstract
Ribs in aircraft wings maintain the airfoil shape of the wing under aerodynamic loads and also support the resulting bending and shear loads that act on the wing. Aircrafts are designed for least weight and hence the wings are made of hollow torsion box and the ribs are designed with cut-outs to reduce the weight of the aircraft structure. These cut-outs on the ribs will lead to higher stresses and stress concentration that can lead to failure of the aircraft structures. The stresses depend on the shape of the cut-outs in the ribs and thus in the present work, the commercial software ANSYS was used to evaluate the stresses on the ribs with different shapes of cut-outs. Four different shapes of cut-out were considered to study the effect of cut-out shape on the stresses in the ribs. It was found that the best shape for the cut-outs on the ribs of wings to reduce weight is elliptical.
References
Bindu. H. C., and Muhammad Muhsin Ali. "Design and Analysis of a Typical Wing Rib for Passenger Aircraft." International Journal of Innovative Research in Science, Engineering and Technology 2, no. 7 (2013): 3130-3136.
Yang, Quanquan, Cun-Fa Gao, and Wentao Chen. "Stress analysis of a functional graded material plate with a circular hole." Archive of Applied Mechanics 80, no. 8 (2010): 895-907. https://doi.org/10.1007/s00419-009-0349-3
Sandeep, Darla, and A. Nageswara Rao. "Optimized design and analysis for the development of aircraft droop nose ribs." International Journal of Modern Research & Development 1, no. 7 (2014): 34-41.
Yang, Zheng, Chang-Boo Kim, Chongdu Cho, and Hyeon Gyu Beom. "The concentration of stress and strain in finite thickness elastic plate containing a circular hole." International Journal of Solids and Structures 45, no. 3-4 (2008): 713-731. https://doi.org/10.1016/j.ijsolstr.2007.08.030
Dhanjal, Saksham, and Richa Arora. "Stress analysis of a rectangular plate with circular hole using three dimensional finite element model." International Journal of Engineering, Business and Enterprise Applications (IJEBEA) 12, no. 1 (2015): 77-80.
Mekalke, G. C., M. V. Kavade, and S. S. Deshpande. "Analysis of a plate with a circular hole by FEM." Journal of Mechanical and Civil Engineering (2012): 25-30.
More, Shashikant T., and R. S. Bindu. "Effect of mesh size on finite element analysis of plate structure." International Journal of Engineering Science and Innovative Technology 4, no. 3 (2015): 181-185.
Shabeer, K. P., and M. A. Murtaza. "Optimization of aircraft wing with composite material." International Journal of Innovative Research in Science, Engineering and Technology 2, no. 6 (2013): 2471-2477.
Kavya, Guguloth, and B. C. Raghukumar Reddy. "Design and finite element analysis of aircraft wing using ribs and spars." International Journal & Magazine of Engineering Technology, Management and Research 2, no. 11 (2015): 1443-1455.
Wang, Yu, Xing Ouyang, Hailian Yin, and Xiongqing Yu. "Structural-optimization strategy for composite wing based on equivalent finite element model." Journal of Aircraft 53, no. 2 (2016): 351-359. https://doi.org/10.2514/1.C033469
Kandemir, Can. "Weight Optimization of An Aircraft Wing Composite Rıb Using Finite Element Method." Master thesis, School of Science and Engineering of Hacettepe University (2020).
Panettieri, Enrico, Marco Montemurro, Daniele Fanteria, and Francesco Coccia. "Multi-scale least-weight design of a Wing-box through a global/local modelling approach." Journal of Optimization Theory and Applications 187, no. 3 (2020): 776-799. https://doi.org/10.1007/s10957-020-01693-y
Zakuan, Muhammad Amir Mirza Bin Mohd, Abdul Aabid, and Sher Afghan Khan. "Modelling and Structural Analysis of Three-Dimensional Wing." International Journal of Engineering and Advanced Technology 9, no. 1 (2019): 6820-6828. https://doi.org/10.35940/ijeat.A2983.109119
Basri, Ernnie Illyani, Adi Azriff Basri, Mohd Firdaus Abas, Faizal Mustapha, Mohamed Thariq Hameed Sultan, and Kamarul Arifin Ahmad. "UAV NACA4415 wing structural performance analysis subjected to external aerodynamic load using Schrenk's approximation." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 60, no. 2 (2019): 178-190.
Bairavi, S., and Suresh Balaji. "Design and Stress Analysis of Aircraft Wing Rib with Various Cut Outs." Indian Journal of Applied Research 6, no. 4 (2016): 511-514.
Dharmendra, P., K. J. Chaithanya, Ayesha Sameera, Khyati Kavathiya, and K. M. Monika. "Design And Analysis Of An Aircraft Wing Rib For Different Configurations." International Research Journal of Engineering and Technology 7, no. 6 (2020): 180-192.
