| “钻石背”弹翼颤振的数值计算 |
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| 引用本文： | 吴小胜,吴甲生.“钻石背”弹翼颤振的数值计算[J].北京理工大学学报,2007,27(5):385-389. |
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| 作者姓名： | 吴小胜 吴甲生 |
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| 作者单位： | 北京理工大学,机电工程学院,北京,100081 |
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| 摘 要： | 研究"钻石背"弹翼的颤振特性.采用Newmark算法简化颤振方程,耦合结构模型和非定常Navier-Stokes模型在时域内求解颤振方程.使用FLUENT 6.2软件求解非定常Navier-Stokes方程,得到非定常气动力;使用NASTRAN软件弹翼进行结构分析.用AGARD 445.6翼算例验证了计算方法的可行性,进行了"钻石背"弹翼的颤振特性计算,得到了颤振速度和颤振频率.
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| 关 键 词： | "钻石背"弹翼 颤振 动网格 数值计算 钻石 弹翼 颤振 数值计算 Wing Back Diamond Flutter Calculation 频率 速度 特性计算 计算方法 验证 算例 结构分析 NASTRAN 非定常气动力 软件 FLUENT |
| 文章编号： | 1001-0645(2007)05-0385-05 |
| 收稿时间： | 2006/10/18 0:00:00 |
| 修稿时间： | 10 18 2006 12:00AM |
Numerical Calculation of Flutter of a Diamond Back Wing |
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| WU Xiao-sheng and WU Jia-sheng.Numerical Calculation of Flutter of a Diamond Back Wing[J].Journal of Beijing Institute of Technology(Natural Science Edition),2007,27(5):385-389. |
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| Authors: | WU Xiao-sheng and WU Jia-sheng |
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| Institution: | School of Mechatronic Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | In order to study the flutter characteristics of diamond back wing,a first order code has been developed to interface a structural model with an unsteady Navier-Stokes fluid model.FLUENT 6.2 was chosen to calculate the unsteady aerodynamics.NASTRAN was chosen to analyse the structures.Initial testing of this code has been completed on AGARD 445.6 wings.Computational results agreed well with the experiments and the computed results of other researchers.The procedure is thus demonstrated to be accurate.The code was used to analyse the flutter characteristics of diamond back wing and obtained the flutter velocity and frequency of diamond back wing. |
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| Keywords: | diamond back wing flutter deforming grid numerical calculation |
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