Effect of the Impact Load on the Main Welding Outer Cylinder of Large Aircraft Landing Gear

Abstract:

Analysis about the cause of the main failure and the forces of the main welding outer cylinder of the recent large aircraft landing gear were given. The impact load for main welding outer cylinder in the process of the taking off and landing was calculated of 580MPa. Finite element model of the main welding outer cylinder was then established and the influence of the impact loading to the main welding outer cylinder was analyzed. The results showed that crack was most likely take place on the top of the outer cylinder, and then on the two welds. The crack expanded in an S shape. This study could provide an important basis for the safety of the aircraft landing gear inspection and service life prediction.

• Periodical: Key Engineering Materials (Volume 567)
• Pages: 169-173
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.567.169
• Online since: July 2013
• Authors: Hong Feng Wang, W.W. Song, J.L. Wang, Dun Wen Zuo, X.L. Duan
• Keywords: Impact Load, Landing Gear, Main Outer Cylinder, Welding

References

[1] Y.G. Lin, J.L. Cheng, Z.Y. Feng, et al, Journal of System Simulation 5(2008)2732-2735.

[2] F.C. Sui, H. Lu, Plane Design6(2001)44-51.

[3] D. K. Prashant , Aerospace Science and Technology 10(2006)19-25.

[4] H.F. Wang, D.W. Zuo, D.L. Shao, et al, Journal of Functional Materials 41(2010)2029-(2033).

[5] H. F. Wang, D.W. Zuo, M. Wang, et al, Journal of South China University of Technology (Natural Science Edition) 38(2010)12-16.

[6] H.C. Lee, Y.H. Hwang, T.G. Kim, Engineering Failure Analysis 10(2003)77-84.

[7] K. Takao, A.S. Donald, Engineering Failure Analysis 10(2006)65-74.

[8] H.F. Wang, D.W. Zuo, M.M. Huang, M.H. Chen and H. Miao, Transactions of Nanjing University of Aeronautics & Astronautics 27(2010)248-253.

[9] H.F. Wang, D.W. Zuo, D.L. Shao, et al, Journal of Aeronautical Materials 31(2011)31-37.

[10] The Chinese mechanical engineering society welding society: Welding handbook(3), China machine press, 2008 Beijing.

[11] H.T. Wang, J.T. Xing, W.G. Price, Journal of Sound and Vibration 3(2008)50-66.

[12] http: /211. 83. 32. 106/jpkc/cygysj/top_all/w_ziyuanku/cailiao/Z10A. htm.

[13] E. Noam, S. Haim, S. Gil, Engineering Failure Analysis 12(2005)337-347.