辽宁省交通高等专科学校学报
遼寧省交通高等專科學校學報
요녕성교통고등전과학교학보
JOURNAL OF LIAONING PROVINCIAL COLLEGE OF COMMUNICATIONS
2014年
5期
1-9
,共9页
主动控制风洞%风场模拟%被动风洞%随机气动力%空间相关性
主動控製風洞%風場模擬%被動風洞%隨機氣動力%空間相關性
주동공제풍동%풍장모의%피동풍동%수궤기동력%공간상관성
active wind tunnel%flow field simulation%passive wind tunnel%stochastic aerodynamic forces%spatial correlation
随着现代大跨度桥梁不断向长大化方向发展,风荷载作用越来越突出,风洞试验作为研究的最重要手段需要精细化,以准确模拟自然风特性。<br> 本文在充分调研基础上,进行主动来流模拟技术研究,基于主动控制风洞,制作主动振动机翼,调整不同来流的能量分配,实现了多点来流风速与气动力分量等试验数据实时同步采集,提出空间同步转换法,解决了试验模型处流场真实状况准确测试问题,充分模拟多项气动力,为更加精细化分析提供有效的方法和手段。<br> 利用主来流模拟技术,通过数值分析,从理论上对窄带谱、宽带谱来流的空间相关性进行研究,分析解释了部分典型气动力现象,得到有意义结论,为深入研究提供参考资料。
隨著現代大跨度橋樑不斷嚮長大化方嚮髮展,風荷載作用越來越突齣,風洞試驗作為研究的最重要手段需要精細化,以準確模擬自然風特性。<br> 本文在充分調研基礎上,進行主動來流模擬技術研究,基于主動控製風洞,製作主動振動機翼,調整不同來流的能量分配,實現瞭多點來流風速與氣動力分量等試驗數據實時同步採集,提齣空間同步轉換法,解決瞭試驗模型處流場真實狀況準確測試問題,充分模擬多項氣動力,為更加精細化分析提供有效的方法和手段。<br> 利用主來流模擬技術,通過數值分析,從理論上對窄帶譜、寬帶譜來流的空間相關性進行研究,分析解釋瞭部分典型氣動力現象,得到有意義結論,為深入研究提供參攷資料。
수착현대대과도교량불단향장대화방향발전,풍하재작용월래월돌출,풍동시험작위연구적최중요수단수요정세화,이준학모의자연풍특성。<br> 본문재충분조연기출상,진행주동래류모의기술연구,기우주동공제풍동,제작주동진동궤익,조정불동래류적능량분배,실현료다점래류풍속여기동력분량등시험수거실시동보채집,제출공간동보전환법,해결료시험모형처류장진실상황준학측시문제,충분모의다항기동력,위경가정세화분석제공유효적방법화수단。<br> 이용주래류모의기술,통과수치분석,종이론상대착대보、관대보래류적공간상관성진행연구,분석해석료부분전형기동력현상,득도유의의결론,위심입연구제공삼고자료。
With the development of the bridge span, the structural response of long-span bridges is more sensitive to flow turbulence and its load. Wind tunnel test should be fine as the traditional method, to accu-rately simulate the natural wind properties. On the basis of full investigation of existing research results, with active flow simulation technology based on active controlled tunnel and active vibration wing, and in order to adjust energy distribution, synchronously acquire real-time multipoint test data of flow velocity and aerodyne component, the spatial synchronization conversion method was put forward to solve accurate test problems of real flow field, and fully simulate a number of aerodynamic forces with effective methods and means for more precise analysis were provided. With the active flow simulation technology and numerical analysis, the research on spectral spatial correlation of narrowband spectrum and broadband spectrum has been conducted to analyze and interpret some typical aerodynamic forces phenomenon. Some meaningful conclusions were drawn and reference materials for engineering applications were provided.