| 白瑜光,脱朝智,孙东科,林家浩.利用虚拟激励法结合CFD技术进行复合材料机翼的阵风响应分析[J].计算力学学报,2012,29(4):556~560,581 |
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| 利用虚拟激励法结合CFD技术进行复合材料机翼的阵风响应分析 |
| Gust response analysis of the composite wing with pseudo excitation method and CFD |
| 投稿时间：2011-02-26 修订日期：2011-09-30 |
| DOI：10.7511/jslx20124015 |
| 中文关键词: 虚拟激励法 CFD 阵风响应 大气紊流 |
| 英文关键词:pseudo-excitation method CFD wind-gust response atmospheric turbulent flow |
| 基金项目:教育部高等学校全国优秀博士论文专项( 2002030); 国家自然科学基金(10972048,90815023,50608012)资助项目. |
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| 摘要点击次数: 1987 |
| 全文下载次数: 1247 |
| 中文摘要: |
| 利用随机振动高效算法-虚拟激励法结合CFD技术,分析复合材料机翼模型的大气紊流响应。计算过程中的虚拟激励法和CFD方法均应用自主产权软件平台DDJ-W。虚拟激励法的使用显著提高了计算效率,同时CFD技术的引入可以准确地确定结构的气动参数。利用Dryden模型得到大气紊流频谱激励下机翼的功率谱响应和方差。计算过程表明,虚拟激励法结合CFD技术可以准确高效地进行复合材料机翼的阵风响应分析。 |
| 英文摘要: |
| The wind-gust response analysis of a composite wing in Turbulent flow was performed using the PEM (pseudo excitation method) and CFD technique,which were implemented based on the self-developed structural analysis program DDJ-W.The use of the PEM improves the computational efficiency considerably and the selection of CFD technique can obtain the aerodynamic parameters accurately.The power spectral responses and variances of the wing were computed using the Dryden atmospheric turbulence spectrum.The computation process shows that the suggested method is accurate and highly-efficient for the analysis of wind-gust responses of composite wings. |
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