Noise-Enhanced Stabilization and Reliability for a Z-Shaped Folding Wing

Wen, Jinbin; Liu, Qi; Guo, Weili; Zhao, Dan; Xu, Yong

doi:10.1142/S0218127426501075

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Noise-Enhanced Stabilization and Reliability for a Z-Shaped Folding Wing

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Wen, Jinbin
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Liu, Qi
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Guo, Weili
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Zhao, Dan
Potsdam Institute for Climate Impact Research;

Xu, Yong
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Wen, J., Liu, Q., Guo, W., Zhao, D., Xu, Y. (2026): Noise-Enhanced Stabilization and Reliability for a Z-Shaped Folding Wing. - International Journal of Bifurcation and Chaos, 36, 08, 2650107.
https://doi.org/10.1142/S0218127426501075

Cite as: https://publications.pik-potsdam.de/pubman/item/item_35281

Abstract

A stochastic dynamic model is proposed for a Z-shaped folding wing with random excitations. The method of multiple scales is employed to derive amplitude equations. Bistable phenomenon on the deterministic system is revealed through analyses on bifurcation and basin of attraction. Under the effect of random loads, the noise-induced transition behavior is observed, and the noise-enhanced stabilization phenomenon is examined in detail. Reliability analysis is conducted using a proposed reliability index. Reliability region is presented versus different parameters including noise intensity. The results of this study can provide guidance for the design and reliability analysis of folding wings.