| 磁流体特性对磁流变火炮后坐阻尼器性能的影响 |
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| 引用本文： | 侯保林.磁流体特性对磁流变火炮后坐阻尼器性能的影响[J].爆炸与冲击,2006,26(3):245-249. |
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| 作者姓名： | 侯保林 |
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| 作者单位： | 1.南京理工大学机械工程学院，江苏 南京 210094 |
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| 摘 要： | 针对火炮后坐磁流变阻尼器的特点，以某单管25 mm火炮实验用磁流变阻尼器为研究对象，基于Herschel-Bulkley本构模型，建立了该炮磁流变后坐阻尼器的轴对称一维层流模型，获得了不同磁场作用下阻尼力随活塞速度的变化规律。运用火炮的后坐运动方程，计算了不同磁流体特性指数下，火炮的后坐位移和后坐速度。计算结果表明，磁流体特性指数的变化对磁流变后坐阻尼器的性能影响显著。
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| 关 键 词： | 流体力学 磁流变阻尼器 Herschel-Bulkley模型 火炮后坐 |
| 文章编号： | 1001-1455(2006)03-0245-05 |
| 收稿时间： | 03 18 2005 12:00AM |
| 修稿时间： | 05 27 2005 12:00AM |
Influence of fluid behavior index on performance of a gun recoil magneto-rheological damper |
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| HOU Bao-lin.Influence of fluid behavior index on performance of a gun recoil magneto-rheological damper[J].Explosion and Shock Waves,2006,26(3):245-249. |
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| Authors: | HOU Bao-lin |
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| Institution: | 1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China |
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| Abstract: | A magneto-rheological(MR) recoil damper for a 25mm air defence gun test application is studied in this paper.Based on Herschel-Bulkley shear model,a one-dimensional axisymmetric laminar flow model of the MR recoil damper is constructed,and the relation curves of damping force and piston velocity of the MR damper is obtained according to the model.Using the force-velocity characteristics of the MR damper,the recoil dynamic equation of the 25mm gun is solved,and the recoil velocity and recoil displacement of the gun are obtained.The simulation results indicate that the value of the MR fluid behavior index has a very big influence on the performanceof gun magneto-rheological(MR) recoil damper. |
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| Keywords: | fluid mechanics magneto-rheological damper Herschel-Bulkley model gun recoil |
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