發(fā)布時(shí)間：2018-06-26 22:00

  本文選題：浮式風(fēng)機(jī) + 運(yùn)動(dòng)特性��； 參考：《海洋工程》2017年03期

【摘要】：以DTU 10 MW基準(zhǔn)風(fēng)機(jī)為研究對(duì)象,單柱式平臺(tái)作為基礎(chǔ)支撐結(jié)構(gòu),使用FAST軟件計(jì)算分析,考慮單獨(dú)風(fēng)、單獨(dú)波浪以及風(fēng)浪組合三種環(huán)境條件,對(duì)10 MW級(jí)海上浮式風(fēng)機(jī)的運(yùn)動(dòng)特性進(jìn)行研究。研究發(fā)現(xiàn):系統(tǒng)搖蕩是風(fēng)激勵(lì)的低頻運(yùn)動(dòng)和波浪激勵(lì)的波頻運(yùn)動(dòng)的合成,氣動(dòng)阻尼削弱系統(tǒng)的波頻運(yùn)動(dòng);系統(tǒng)縱蕩和縱搖運(yùn)動(dòng)存在明顯的耦合現(xiàn)象,而垂蕩運(yùn)動(dòng)和其他方向的運(yùn)動(dòng)沒(méi)有耦合關(guān)系;受縱搖影響,轉(zhuǎn)動(dòng)的風(fēng)輪產(chǎn)生陀螺慣性力矩,激勵(lì)首搖運(yùn)動(dòng);隨著風(fēng)機(jī)單機(jī)容量的增加,風(fēng)激勵(lì)的低頻運(yùn)動(dòng)比例增大,波浪激勵(lì)的波頻運(yùn)動(dòng)比例減小。
[Abstract]:Taking DTU 10MW blower as research object and single column platform as foundation supporting structure, the calculation and analysis of single wind, single wave and wind-wave combination are considered with fast software, and three kinds of environmental conditions are considered, such as single wind, single wave and combination of wind and wave. The motion characteristics of 10 MW floating fan are studied. It is found that the system rocking is the combination of the low frequency motion induced by wind and the wave frequency motion induced by wave, the aerodynamic damping weakens the wave frequency motion of the system, and there is obvious coupling phenomenon between the longitudinal motion and the pitch motion of the system. However, there is no coupling between the pendulum motion and the motion in other directions; under the influence of pitching, the rotating wind wheel produces gyro inertia torque, which excites the initial motion; with the increase of the fan's single capacity, the proportion of low-frequency motion excited by the wind increases. The ratio of wave frequency motion to wave excitation is reduced.
【作者單位】： 上海交通大學(xué)海洋工程國(guó)家重點(diǎn)實(shí)驗(yàn)室;上海交通大學(xué)高新船舶與深海開(kāi)發(fā)裝備協(xié)同創(chuàng)新中心;
【基金】：國(guó)家自然基金重點(diǎn)項(xiàng)目(51239007)
【分類(lèi)號(hào)】：P742;TM315

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本文編號(hào)：2071552