Numerical simulation and statistical analysis of random response of the landing gear at taxiing

DOI

10.2991/ic3me-15.2015.268How to use a DOI?

Keywords

landing gear; runway unevenness; random simulation; random response; statistical analysis.

Abstract

Due to the runway unevenness, random vibration will occur of aircraft landing gear during impacting and taxiing phase. In view of the simplified two degrees of freedom model of landing gear, the nonlinear dynamic equation of the system can be established. By using the military specification’s formula of runway unevenness, large number of unevenness time series can be generated via the harmonic superposition method. The 10000 samples whose confidence interval width is smaller and whose simulated time is shorter are taken as the unevenness test samples. With the runway unevenness of 10000 samples as input, solving the nonlinear dynamic equation of the system yields a large number of samples of displacement response. Through statistical analysis of response samples in the random data analysis method, some statistical information such as mean, mean square, auto-correlation function and PSD of the displacements can be obtained. Results show that through the analysis of the PDF of displacements, the distribution of displacement response is non-Gaussian.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Weiguo Wu
AU  - Teng Jia
AU  - Furui Xiong
PY  - 2015/08
DA  - 2015/08
TI  - Numerical simulation and statistical analysis of random response of the landing gear at taxiing
BT  - Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1391
EP  - 1397
SN  - 2352-5401
UR  - https://doi.org/10.2991/ic3me-15.2015.268
DO  - 10.2991/ic3me-15.2015.268
ID  - Wu2015/08
ER  -