Tests for cavities and motion characteristics in process of two-cylinder in parallel water entry at low speed

被引：0
|
作者：
Lu L. [1 ]
Wei Y. [1 ]
Wang C. [1 ]
Song W. [1 ]
Liu K. [1 ]
机构：
[1] School of Astronautics, Harbin Institute of Technology, Harbin
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 07期
关键词：
Cavity; In parallel; Motion characteristics; Water entry;
D O I：
10.13465/j.cnki.jvs.2019.07.007
中图分类号：
学科分类号：
摘要：
To deeply study cavities evolution and motion laws in process of two-cylinder in parallel water-entry at low speed, tests for two-cylinder in parallel water-entry at low speed were conducted. The evolution mechanism of in parallel water-entry two-cavity was analyzed by comparing tests for a single cylinder water entry and those for two-cylinder in parallel water entry. The tests with different water-entry velocities were conducted to study the effects of water-entry velocity on cylinders' motion characteristics in process of them in parallel water-entry. Combined with the evolution law of cavities, the influence mechanism of cavities evolution process on cylinders' motion was analyzed. The results showed that in process of two-cylinder in parallel water-entry at low speed, cavities have obvious asymmetry; cylinders have lateral motion and excursion one under the asymmetric hydrodynamic action; cavities closure affects cylinders' excursion motion obviously, the motion characteristic curves of two-cylinder and two-cavity morphology have a good symmetry. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：42 / 49
页数：7
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