| 基于ABAQUS CEL的高速水冲击载荷仿真与试验研究 |
| Simulation and experimental study on high-speed water impact load based on ABAQUS CEL |
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| 中文摘要: |
| 针对水陆两栖飞机水箱汲水过程中形成的高速水流冲击问题，开展了高速水冲击载荷特性研究。提出了一种基于调节腔内气压的水冲击试验方法，通过调节储水容器内气压改变水流冲击速度，开展高速水流冲击试验研究；运用ABAQUS CEL数值仿真方法，预设水流初始速度，建立高速水流冲击的有限元模型，分析了水流速度和水管端部与平板间距对于冲击压力的影响。结果表明：数值仿真计算结果与试验结果相差不大，验证了该模型的准确性；水流速度越大，平板受到的冲击压力越大；水管端部与平板的间距越大，平板受到的水流冲击压力越小。 |
| 英文摘要: |
| Aiming at the problem of high-speed water impacts formed during the water drawing of amphibious aircraft water tanks, the high-speed water impact load characteristics was studied. Firstly, a water impact experiment method based on adjusting the air pressure in the cavity is proposed. By adjusting the air pressure in the water storage container to change the water impact speed, the high-speed water flow impact experimental research is carried out. Then, based on ABAQUS CEL numerical simulation method, the initial velocity of water flow is preset, and the finite element model of high-speed water flow impact is established. The effects of water velocity and the distance between the end of water pipe and flat plate on the impact pressure was analyzed. The results show that the numerical simulation results are not much different from the experimental results, which verifies the accuracy of the model. The higher the water velocity is, the greater the impact pressure on the plate becomes, and the greater the distance between the end of the water pipe and the plate is, the smaller the impact pressure on the plate becomes. |
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| 中文关键词: 水陆两栖飞机 高速水流 流固耦合 ABAQUS CEL “水锤”理论 |
| 英文关键词:amphibious aircraft high-speed flow fluid-structure coupling ABAQUS CEL “water hammer”theory |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2022.03.06 |
| 引用本文：齐贺阳, 田永卫.基于ABAQUS CEL的高速水冲击载荷仿真与试验研究[J].计测技术,2022,(3):. |
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