复杂圆柱型波能装置振动特性研究  

Oscillating property of a complex cylinder as a wave energy conversion device

作　　者：覃岭[1] 吴必军[2] 

机构地区：[1]顺德职业技术学院机电工程系,广东顺德528300 [2]中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室,广州510640

出　　处：《振动与冲击》2010年第4期188-192,共5页Journal of Vibration and Shock

基　　金：国家十一五863计划项目(2009AA05Z428);国际科技合作计划项目(2007DFA60490)

摘　　要：从复杂圆柱形振荡浮子出发,基于线性波规则理论,考虑粘性阻尼吸取波浪能,建立了振荡浮子的一维运动方程,以此推导了振荡浮子在自由漂浮运动、无阻尼运动、恒定弹簧下有阻尼运动及最优弹簧和最优阻尼下和在设定工作状态下的振动表达式,最后实例分析了振荡浮子的振动特性。研究表明振荡浮子的固有周期是随入射波频率的变化而变化,对振荡浮子施加弹簧要依据波能装置的设计工作点来确定。Based on the linear wave theory and considering viscous damping Absorbing wave energy,the one-dimensional dynamic equation was established for a complex cylinder as a wave energy conversion device.Expressions about the amplitude and velocity of the cylinder were deduced from the equation under the free motion,the undamped motion with an invariable spring coefficient,the motion with the optimal damping and an invariable spring coefficient,the motion with the optimal damping and the optimal spring coefficient and the motion with a specified working state.Finally,the analytical results of the oscillating property of the cylinder were given for some examples.Numerical calculation indicated that the natural frequency of the cylinder varies with the incident wave frequency and whether the spring is added is determined according to the working point.

关 键 词：波浪能 线性理论 振动特性 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程]