風響應特性 的英文怎麼說
中文拼音 [fēngxiǎngyīngtèxìng]
風響應特性
英文
wind response characteristic- 風 : Ⅰ名詞1 (空氣流動) wind 2 (風氣; 風俗) practice; atmosphere; custom 3 (景象) scene; view 4 ...
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
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The third, it analyzes some question about feasibility analysis and provides some means to solve theses question. the fourth, it studies some important problem about real estate feasibility analyzing such as : the market segment and market position of real estate, consumer market and consumer buying action analyzing, the financial evaluation of real estate project, the analysis of risk of real estate project, the indefiniteness analyzing of real estate project. in the part of feasibility analyzing of s real estate project, it analyzes the feasibility of the s project from three aspects including marketing feasibility, engineering and technology feasibility, economical feasibility, then makes a conclusion of feasibility analyzing of s project, together with some suggestion to the problem of s project
第四,對房地產開發項目可行性分析中應重點關注的一些問題進行了較為深入的探討,具體包括:準確地進行房地產市場細分與定位:房地產市場細分的準則,房地產市場定位的任務,房地產市場定位的誤區與對策;認真研究消費者市場及消費者購買行為:影響消費者購買行為的因素,消費者購買決策過程分析,消費者購買行為分析,消費者分析通常應涉及的問題;科學地進行開發項目的財務評價:靜態評價及其優缺點,動態評價及其優缺點;加強開發項目的風險分析:房地產開發項目風險的特點類型,風險的總體狀況及變化趨勢,開發項目風險的防範策略;重視開發項目的不確定性分析:盈虧平衡分析,敏感性分析,概率分析。Research on wind is the precondition of wind response, then the section plane of static wind, intensity of onflow, psd function and correlativity of dynamic wind are involved in
對風的研究是進行風振響應研究的前提,風的基本特徵包括平均風速剖面、湍流強度、脈動風功率譜密度函數、脈動風的空間相關性以及極端風速的概率統計特性。Through the test of sine wave sweep, the character of response of aeolian sand due to motivation is gained
利用正弦波掃頻試驗,得到風積沙對激勵的響應特性。Dynamic characteristic of the fan system was tested in this paper. the time constants of acceleration and deceleration was gotten and bode diagram of frequency response was presented. the results show that the frequency response of the system is satisfying in the range up to 0. 2 hz
本文對風機系統的動態特性進行了測試,得到了它的加減速時間,並通過譜分析法得到了系統的幅相頻響應曲線( bode圖) ,結果表明系統在低於0 . 2赫茲范圍有較好的相應特性。Three models are employed to analyze the aerodynamic characteristics of a wing above sea - wave. those are ( 1 ) curve surface effect ( c. e. ), ( 2 ) wavy air motion effect ( w. e. ) and the coupled effect a. e
研究了曲壁面效應,波動效應以及壁面和波動綜合效應三種影響模式對二維和三維機翼在風浪中飛行時的氣動力性能的影響規律,指出了二維和三維機翼氣動力特性的共性和區別。Mean shape factor and rms shape factor distributed on the roof of the structure with b exposure are measured. based on using of a multi - point high - speed pressure scanning system on rigid model, wind - induced dynamic responses are discussed by the method of power spectrum analysis
分析了在b類地貌類型下風荷載的分佈特性,並根據剛性模型同步測壓技術以及屋蓋結構風致響應的譜分析方法,分析討論了結構動態響應,並討論了結構前幾階模態對系統響應貢獻。In addition, the author puts forward that the eggs could be recognized based on the difference in the frequencies of their prompted sounds. because the eggs " prompted sounds are lied on low frequency bands, the microphone and sound amplifier that have excellent duration response should be used. the output signal from the sound amplifier is transferred to data signal by a / d card before it is put into computer
蛋品激勵出的聲音主要集中在低頻段,因此選擇在低頻段有好的頻率響應特性的麥克風和放大電路;放大輸出信號通過a / d採集板變換成相應的電壓數值信號送入計算機,對離散的信號數據進行傅立葉變換得到它的頻譜圖和各頻段能量分布圖;而後將能量分佈特徵數據作為神經網路的輸入值,這樣,好蛋和破損蛋的模型就建立起來。Exploring attenuation of steady circumferential pressure distortion of axial flow compressor with axial fan stage
風扇級負荷對其進口總壓畸變響應特性影響研究In this text we make a diagnosis of linear and nonlinear response of quasi - quadrennial ( qq ) and quasi - biennial ( qb ) component of nino3. 4 index by using reanalyzed ncep / ncar data of sst, wind stress ( pseudo stress ) field, ssp, then have a time and spatial analysis of wind stress field by using mssa, and finally find the importance and contrast the effect of different wind stress field forcing the sea so as to find the cause ofenso irregularity
本文首先分析海表溫度( sst ) 、風應力場、海表面氣壓( slp )等ncep ncar再分析的月距平場對于nino3 . 4指數的準4a ( qq )和準2a ( qb )振蕩成分的線性和非線性響應,接著用mssa (多通道奇異譜分析)對風應力場進行時空特徵分析,最後用一個熱帶太平洋動力海洋模式研究具有不同振蕩性質的風應力場對海洋強迫作用的重要性及差異,尋找enso不規則性的原因。But it will affect the airflow organization with the cooled airflow drops. also, it studies the impact of solar radiation on displacement ventilation and cooled ceiling system. horizontal warm areas lowers the height of thermocline and is unfavorable to displacement ventilation system ; vertical hot surfaces will destroy the thermal stratification
水平熱表面的存在,會使系統的溫躍層高度降低,對置換通風系統會有負面影響,為了減小水平熱表面的影響,對于地板材料應該選擇對長波輻射吸收較低的物質;垂直局部熱表面的存在會破壞置換通風系統溫度分層的特性,使垂直方向溫度變化減小。But at present, the static performances of the double reticulated domes applied on the different load combination of wind load, snow load, live load, seismic load and dead load are not adequately studied. also the study on the dynamical response under seismic action is not sufficient
但目前對于這類空間結構在雪載荷、風載荷、恆載荷、活載荷、地震載荷等各種載荷共同作用和各種載荷分佈方式下的靜力性能研究還不充分,特別是對其在地震作用下的動態響應的研究還不足。The refined idea can be expressed that eswl should be studied to reflect the mechanism of wind loading action and rules of wind - induced response, and to relate eswl to basic characteristics of wind loads and dynamic properties of structures. eswl obtained by the refined idea possesses more definite physical meanings
該思想可表述為,應從風荷載的作用機理和結構的風振響應規律兩方面入手,來研究等效靜風荷載問題,力求建立等效靜風荷載與風荷載基本特性以及結構自身動力特性之間的聯系,從而使等效靜風荷載具有更明確的物理內涵。Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
文摘:運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區In respect of method to analyze wind load characteristics, focusing the complex factors that influence the wind load distributions of large span roof and with the wind tunnel test of the shenzhen convention and exhibition center. a new fuzzy neural network model ( fnnm ) is applied to forecast the wind load distribution of large span roof
在風荷載分佈特性的分析方法方面,針對影響大跨屋蓋結構風荷載分佈特徵的諸多復雜因素,並結合深圳會議展覽中心風洞試驗項目的研究,應用模糊神經網路方法,成功地預測了大跨屋蓋結構的風壓分佈特性。First, the paper makes the analysis of diffusion process of high - tech consumer products based on the theory of communication and consumer behavior, including information communication process and purchase process. we can see specific receiver, appropriate time, reachable channel and correct information can bring effective communication of information. purchasing power, product feature, perceived risk, definite knowledge of product and usage, consumer habit, purchasing environment and buying time all influence purchase behavior of consumer
首先應用傳播理論和消費者行為理論,通過對高科技消費品市場化過程的分析,包括對企業信息傳播過程的分析和消費者購買過程的分析,得出信息有效傳播依賴于明確的目標對象、恰當的傳播時機和渠道選擇以及不會存在理解偏差的信息;消費者購買能力、產品特性、消費者知覺到的風險、消費者有限的產品知識和使用知識、消費者習慣、購買環境、購買時間都會影響到消費者的購買行為。Firstly, its natural vibration characteristics are analysised, and the model used for calculating is checked at the same time. then the static analysis under wind load is performed before linear buffeting analysis is done
對該橋首先進行了自振特性分析,並藉此檢驗所建橋梁計算模型的正確性,其次進行靜風響應分析,最後對全橋做線性抖振分析。Abstract : wind tunnel experiments were carried out to investigate the influence of wind direction on the wind pressure of proximite buildings. mean and fluctuating pressure coefficients on a high building, at sixteen different wind incidences and with one and two interfering buildings, were measured in the tests. this paper presents the characteristics of wind pressure on the building, which varies with the incident wind angle and with the numbers of adjacent buildins. due to the variation of wind angle and the interference effects, the complex feature of pressure distributions can be found on the downstream building surfaces for building group arrangement at certain angle of wind attack. some area of the interfered building for such configuration, in comparison with one single building ' s, may undergo very strong positive or negative pressures
文摘:通過風洞實驗研究了風向對兩個和三個鄰近建築風壓分佈的影響特性.實驗結果給出了在不同風向角下,作用於受擾建築上的平均和脈動風壓系數.當受擾建築處于下游位置時,建築之間的干擾效應主要表現為遮擋影響,建築物上的總體風壓系數不是很大,但在建築物表面上有時會產生局部較大的負壓系數.另外,在某些風向角下由於受到上游分離氣流的影響,在下游建築的局部表面又會出現較大正壓.這些結果可供建築布置和結構設計時參考The direct solution for u ~ u and u ~ p form, the stagger solution for u ~ p form are compared in the convergency, stability and efficiency, from which it is concluded that the first solution used not widely before is characterized with weakly ill - conditioned stiffness and comparatively high efficiency. the finite element methods based on these three solving procedures are numerically implemented. the seabed soil under wave pressure with small amplitude can be viewed as elastic material
詳細比較廣義biot理論u u形式直接解法、 u p形式直接解法與交叉迭代法求解彈性、彈塑性問題的收斂性、穩定性與計算效率,認為以往較少應用的u u形式直接解法剛度陣病態性弱,求解效率高,更適合土工問題的數值模擬,小風浪作用下海床的動力響應特性可視為彈性的。In this model, femur and tibia and fibula are modeled by using solid elements
其中,有較大骨折風險的長骨包括股骨、脛骨和腓骨用實體單元建模以獲得較好的力學響應特性。分享友人