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Experimental studies were conducted on a trapezoidal pendulum wave energy converter in regular waves. To obtain the incident wave height, the analytical method (AM) was used to separate the incident and reflected waves propagating in a wave flume by analysing wave records measured at two locations. The response amplitude operator (RAO), primary conversion efficiency and the total conversion efficiency of the wave energy converter were studied; furthermore, the power take-off damping coefficients corresponding to the load resistances in the experiment were also obtained. The findings demonstrate that the natural period for a pendulum wave energy converter is relatively large. A lower load resistance gives rise to a larger damping coefficient. The model shows relatively higher wave energy conversion efficiency in the range of 1.0?1.2 s for the incident wave period. The maximum primary conversion efficiency achieved was 55.5%, and the maximum overall conversion efficiency was 39.4%.  相似文献   
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本文从工程角度出发,阐述了风谱的表达、意义及应用,并对风载荷的稳态及脉动部分都进行了讨论,脉动风载荷的计算与前人不同,文中保留了和频项的贡献,对风载荷的各组成部分提供了量的概念。结果表明,风载荷的脉动峰值有可能是平均值的2.36倍,利用阵风风速计算出的风载荷,数量上接近风载荷的±值,一阶与二阶风载荷的脉动频率都极低,对低频系统应加以注意。  相似文献   
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1 .IntroductionIt is always hopedthat sunken merchant vessels would resume their ship performances after sal-vage ,that ancient sunkenships of archeological value would be salvagedinits entirety withlittle harmtothe cultural relics ,andthat warships with …  相似文献   
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