本文關(guān)鍵詞： 脈動(dòng)風(fēng) 風(fēng)譜 簡(jiǎn)諧波疊加法 物理模擬　出處：《水利水運(yùn)工程學(xué)報(bào)》2016年01期 　論文類型：期刊論文

【摘要】：海洋環(huán)境中風(fēng)荷載是船、采油平臺(tái)、海上結(jié)構(gòu)等所受主要荷載之一。自然界中的風(fēng)不均勻且具有較強(qiáng)的脈動(dòng)性。因此,研究隨機(jī)脈動(dòng)風(fēng)場(chǎng)具有實(shí)際意義。采用伺服驅(qū)動(dòng)有效控制風(fēng)機(jī)的響應(yīng)時(shí)間,基于脈動(dòng)風(fēng)譜特性進(jìn)行了隨機(jī)脈動(dòng)風(fēng)的模擬試驗(yàn),并與同類試驗(yàn)相比,譜形波動(dòng)較小,因此具有更好的穩(wěn)定性。同時(shí)還研究了各種不同控制因子對(duì)譜模擬的影響,給出了穩(wěn)定脈動(dòng)風(fēng)場(chǎng)所需信號(hào)時(shí)間間隔、試驗(yàn)時(shí)長(zhǎng)等參數(shù)的選取區(qū)間。
[Abstract]:Wind stroke load in marine environment is one of the main loads on ships, oil production platforms, offshore structures and so on. The wind in nature is uneven and has strong pulsation. It is of practical significance to study the random pulsating wind field. The response time of the fan is effectively controlled by servo drive. Based on the characteristics of the pulsating wind spectrum, the simulation test of the random pulsating wind is carried out, and compared with the similar test, the spectral fluctuation is smaller. The influence of different control factors on spectral simulation is also studied, and the interval of signal time required for stable pulsating wind field and the selection range of parameters such as the length of test time are given.
【作者單位】： 南京水利科學(xué)研究院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51579156) 水利部公益性行業(yè)科研專項(xiàng)經(jīng)費(fèi)資助項(xiàng)目(201401004) 南京水利科學(xué)研究院院基金重大項(xiàng)目(Y214009)
【分類號(hào)】：P75
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本文編號(hào)：1532777