| 引用本文: | 鲍文春,权晓波,李岩,等.水下应用栅格翼动态展开参数预示方法.[J].国防科技大学学报,2017,39(3):52-57.[点击复制] |
| BAO Wenchun,QUAN Xiaobo,LI Yan,et al.Parameters prediction method of underwater grid fins during the procedure of dynamic expansion[J].Journal of National University of Defense Technology,2017,39(3):52-57[点击复制] |
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| 水下应用栅格翼动态展开参数预示方法 |
| 鲍文春, 权晓波, 李岩, 程少华, 王占莹 |
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(北京宇航系统工程研究所， 北京 100076)
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| 摘要: |
| 基于水下应用栅格翼动态展开过程动力学模型，根据展开特征角度定常水动力方法，拟合获得展开全程受到的流体力矩，并引入考虑相对速度影响的修正因子，形成水下应用栅格翼动态展开过程参数工程预示方法，以典型展开时序点航行体运动参数为设计输入，对栅格翼展开过程运动参数进行预示。通过与水下应用栅格翼非定常流场仿真计算数据以及水下航行体弹射试验数据对比，验证了上述预示方法的正确性及工程适用性，为水下应用栅格翼方案设计的优化及展开不同步性分析提供设计参考。 |
| 关键词: 栅格翼 动态展开 预示方法 |
| DOI：10.11887/j.cn.201703009 |
| 投稿日期：2015-12-25 |
| 基金项目:教育部重点实验室基金资助项目（11172325，90716015） |
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| Parameters prediction method of underwater grid fins during the procedure of dynamic expansion |
| BAO Wenchun, QUAN Xiaobo, LI Yan, CHENG Shaohua, WANG Zhanying |
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(Beijing Institute of Space System Engineering, Beijing 100076, China)
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| Abstract: |
| Based on the kinetic model of underwater grid fins during the procedure of dynamic expansion, a prediction method was developed, which took the motion parameters at typical expansion points as the design input. The hydrodynamic moment used in the kinetic model was fitted by the values obtained in steady hydrodynamic conditions with specific expansion angles. A modified factor in consideration of the relative velocity was included as well. By comparing with the results obtained by unsteady numerical simulations and the underwater vehicle experiment data, the prediction method is verified, which can provide a design reference for the optimum proposal of the underwater grid fins and the analysis of non synchronization expansion. |
| Keywords: grid fin dynamic expansion prediction method |
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