Structural Flexibility and Undercarriage Impact Loads

H.R. Alexander, B.A., M.Sc., A.F.R.Ae.S. (Stress Office. Short Brothers and Harland Ltd, Belfast. The writer wishes to thank the Management of Messrs Short Brothers and Harland Ltd for permission to publish this article.)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Publication date: 1 May 1959


The calculation of undercarriage landing reactions and dynamic stresses is discussed, and the merging of the two calculations under certain circumstances is proposed. ? formulation of the combined problem is outlined, and numerical examination of a simple case shows that in some cases the reaction forces are appreciably reduced by the adoption of the combined approach. Finally, a criterion is derived which could be used in the early stages of undercarriage design to predict the elicci of aircraft flexibility.


Alexander, H. (1959), "Structural Flexibility and Undercarriage Impact Loads", Aircraft Engineering and Aerospace Technology, Vol. 31 No. 5, pp. 126-130.

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Copyright © 1959, MCB UP Limited

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