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| Numerical investigation on seakeeping performance of amphibious aircraft landing on waves |
| Received:January 19, 2017 Revised:June 25, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20170119003 |
| KeyWord:amphibious aircraft wave wave-making seakeeping fluid-structure interaction |
| Author | Institution |
| 马增辉 |
武汉理工大学 工程结构与力学系, 武汉 |
| 刘立胜 |
武汉理工大学 工程结构与力学系, 武汉 |
| 岳珍 |
武汉理工大学 工程结构与力学系, 武汉 |
| 朱国甫 |
武汉理工大学 工程结构与力学系, 武汉 |
| 刘齐文 |
武汉理工大学 工程结构与力学系, 武汉 |
| 张家旭 |
高速水动力航空科技重点实验室, 荆门 |
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| Abstract: |
| The impact of aircraft with high speed on waves with powerful energy may cause high acceleration, violent changes in attitude angles of the aircraft or the fuselage deformation.This work simulated the 2-D waves with height of common waves based on the small amplitude wave theory for plane wave-maker.The plane wave-maker with simple harmonic motion disturbs the water to generate numerical waves in LS-DYNA.Mass weighted damping is applied to absorb the reflected waves from the rigid boundary.The water part is meshed by ALE elements and the aircraft is meshed by Lagrangian elements.The interaction between aircraft and water is simulated by the penalty function coupling method.Then, the simulation of amphibious aircraft landing on waves with different wave lengths and heights was performed and the following hydrodynamic results are obtained:the process of attitude angles change, the overload change at center of mass, at fore-body and rear-body, distribution of pressure at the bottom of the fuselage. |
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