wind power density 中文意思是什麼
wind power density
解釋
風功率密度-
As a metropolis with a population density of 6 500 persons per square kilometre, hong kong will most probably need to give up some green belts, or carry out large - scale marine works in order to develop wind power generation extensively
要在香港這個人口密度高達每平方公里6 ， 500人的大都會大規模發展風力發電，很大機會須要減少綠化地帶或進行大規模海上工程。 -
According to the requirements of propeller aerocraft model test in wind tunnel, specifications of the driven motor is presented by aerodynamic analysis, and a short - term operated high power density three - phase induction motor is developed with reasonably designing the motor, such as electromagnetism load, heat checkout and high - efficiency heat exchanger
摘要針對螺旋槳飛機模型帶動力風洞實驗要求，通過氣動性能分析提出驅動電機的技術指標，在滿足結構約束的條件下，通過合理設計電機的電磁負荷、校核發熱、採用高效冷卻裝置等，研製出短時工作制高功率密度三相異步電機。 -
Further more, power spectrum density ( psd ) of each test section was analyzed, and its experiential formula was given. combined with experiential the formula of coherence function, the mathematic model for calculating the caarc standard tall building ' s wind - induced response was set up
進一步擬合了順風向和橫風向各測點層層風力譜的經驗公式，並給出了以此為基礎的計算caarc標模風振響應的流程，從而建立起完整的標模風振響應以及等效荷載計算的數學模型。 -
Some characteristics of the measured wind pressure field were discussed, including distributions of wind pressure, the effects of shape ratio on total wind force coefficients, auto - and cross - power spectral density ( psd ) distributions of fluctuating wind pressure, characteristics of the proper orthogonal decomposition ( pod ) results of the measured wind pressure field, effects of reynolds number on wind pressure distributions, etc
根據測量結果對殼體表面風壓場特性進行了分析，包括風壓系數、整體風力系數、脈動風壓自功率譜及互功率譜、風壓場本徵正交分解特性、雷諾數對殼體表面風壓分佈的影響等。 -
This paper selects the pulsating wind power density spectrum of davenport and simulates the wind speed time series and the wind load time by matlab. considering the vertical and horizontal correlation of the pulsating wind, the study make use of the time domain analysis of buffeting to carry out the transient dynamic analysis of the whole frame structure which is loaded by the random pulsating wind load. finally, in terms of the whole frame of the pipe belt conveyor, the evaluation for
選取davenport脈動風功率譜，利用matlab模擬脈動風的風速時程曲線和風荷載時程曲線，並考慮脈動風的空間豎向和側向相關性，利用抖振時域法對整體機架結構進行隨機脈動風壓作用下的瞬態動力學分析，最後再對圓管帶式輸送機整體機架結構對環境風荷載的適應性做出評價。 -
In the paper, firstly, present the formulation and application of proper orthogonal decomposition of covariance and cross - power spectral density matrices are presented in the analysis of wind load effects on structures. then the dynamic response of linear structures subjected to random loads is analyzed by a technique called double modal transformation ( dmt ) that is expressed through a double series whose terms depend on structural and loading modes
本論文中首先通過求相關矩陣和互功率譜密度矩陣特徵值問題給出了本徵正交分解的公式，並利用pod與結構模態相結合的雙模態方法來分析結構的動態響應，主要討論了截斷高階荷載模態對風致響應的影響。 -
The fluctuating omnidirectional wind pressure power spectrum density ( psd ) of some typical locations and the frequency domain coherence property of the fluctuating wind pressure between different tapping positions at different wind directions were measured and discussed
文中進一步測量並討論分析了屋蓋上典型測點脈動風壓的頻譜特性以及空間不同位置之間的相干特性。
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