What question did this study set out to answer?

The research aims to understand how noise impacts the stability and reliability of Z-shaped folding wings.

March 6, 2026International Journal of Bifurcation and Chaos0 citations

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

Key Points

The research aims to understand how noise impacts the stability and reliability of Z-shaped folding wings.
Developed a stochastic dynamic model considering random excitations.
Used the method of multiple scales to derive amplitude equations.
Analyzed bifurcation and basin of attraction for the deterministic system.
Conducted reliability analysis using a proposed reliability index.
Identified a bistable phenomenon in the deterministic system.
Observed noise-induced transition behavior under random loads.
Presented a reliability region influenced by various parameters, including noise intensity.

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.

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Cite This Study

Wen et al. (Tue,) studied this question.

synapsesocial.com/papers/69aa705a531e4c4a9ff5a03b https://doi.org/https://doi.org/10.1142/s0218127426501075

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