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海洋工程试验中API谱特性的风模拟

发布时间:2018-02-25 03:10

  本文关键词: 脉动风 风谱 简谐波叠加法 物理模拟 出处:《水利水运工程学报》2016年01期  论文类型:期刊论文


【摘要】:海洋环境中风荷载是船、采油平台、海上结构等所受主要荷载之一。自然界中的风不均匀且具有较强的脉动性。因此,研究随机脉动风场具有实际意义。采用伺服驱动有效控制风机的响应时间,基于脉动风谱特性进行了随机脉动风的模拟试验,并与同类试验相比,谱形波动较小,因此具有更好的稳定性。同时还研究了各种不同控制因子对谱模拟的影响,给出了稳定脉动风场所需信号时间间隔、试验时长等参数的选取区间。
[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.
【作者单位】: 南京水利科学研究院;
【基金】:国家自然科学基金资助项目(51579156) 水利部公益性行业科研专项经费资助项目(201401004) 南京水利科学研究院院基金重大项目(Y214009)
【分类号】:P75


本文编号:1532777

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