Numerical investigation on pressure responsiveness properties of the skirt-cushion system of an air cushion vehicle

Shengjie, Xu; Tang, Yujia; Chen, Kejie; Zhang, Zongke; Ma, Tao; Tang, Wenyong

doi:10.1016/j.ijnaoe.2020.09.006

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…A cushion-skirt information communication platform has been also presented for interchanging the force and the skirt configuration between cushion aerodynamics and flexible skirt dynamics. The results demonstrate that the pressure responsiveness property helps alleviate the influence of the cushion height changing on the overall performance of ACVs (Xu et al, 2020).…”

Section: Introductionmentioning

confidence: 87%

“…Some geometrical parameters were considered in this study such as length ratio between the inner and outer bag, anti-bounce web size. It was shown by Xu et al (2019) that the configuration of bow-side corner skirt optimized by the parametric-driven finite element method had a uniform skirt height distribution which is beneficial to the overall performance of air cushion vehicle. The pressure responsiveness properties of a skirt-cushion system have been investigated by Xu et al (2020) numerically using cushion aerodynamics and flexible skirt dynamics.…”

Section: Introductionmentioning

confidence: 99%

“…It was shown by Xu et al (2019) that the configuration of bow-side corner skirt optimized by the parametric-driven finite element method had a uniform skirt height distribution which is beneficial to the overall performance of air cushion vehicle. The pressure responsiveness properties of a skirt-cushion system have been investigated by Xu et al (2020) numerically using cushion aerodynamics and flexible skirt dynamics. A cushion-skirt information communication platform has been also presented for interchanging the force and the skirt configuration between cushion aerodynamics and flexible skirt dynamics.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chaotic Assessment of the Heave and Pitch Dynamics Motions of Air Cushion Vehicles

Sowayan

2021

International Journal of System Dynamics Applications

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In this study, three degrees of freedom nonlinear air cushion vehicle (ACV) model is introduced to examine the dynamic behavior of the heave and pitch responses in addition to the cushion pressure of the ACV in both time and frequency domains. The model is based on the compressible flow Bernoulli's equation and the thermodynamics nonlinear isentropic relations along with the Newton’s second law of translation and rotation. In this study, the dynamical investigation was based on numerical simulation using the stiff ODE solvers of the Matlab software. The chaotic investigations of the proposed model is provided using the Fast Fourier Transform (FFT), the Poincaré maps, and the regression analysis. Three control design parameters are investigated for the chaotic studies. These parameters are: ACV mass (M), the mass flowrate entering the cushion volume (m ̇_in), and the ACV base radius (r). Chaos behavior was observed for heave, and pitch responses as well as the cushion pressure.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%