鹰式波浪能装置旋转碰撞的损伤分析
收稿日期: 2014-02-15
修回日期: 2014-04-23
网络出版日期: 2014-04-30
基金资助
国家海洋可再生能源专项资金项目（GHME2011BL06）；国家自然科学基金-青年科学基金项目（51109201）
Damage Analysis of Eagle Wave Energy Converter in Rotating-Collision
Received date: 2014-02-15
Revised date: 2014-04-23
Online published: 2014-04-30
陈爱菊 , 游亚戈 , 盛松伟 , 彭雯 . 鹰式波浪能装置旋转碰撞的损伤分析[J]. 新能源进展, 2014 , 2(2) : 129 -134 . DOI: 10.3969/j.issn.2095-560X.2014.02.008
The end beam on the Eagle wave energy converter (WEC) was broken up during the real sea experiment. To make clear the damage mechanism, the collision of the end beam and the wave energy absorber (WEA) was studied by the explicit nonlinear finite element analysis. In the simulation, the WEA was assumed as a rigid body, and the end beam an elastic-plastic structure. The inertia effects of WEA and the end beam were taken into account. Through the simulation, the structural stress and the deformation of the end beam were obtained. In addition, the energy absorption and the collision force were also investigated. The results fit well with the actual damage situation. We also simulated the impact of the device with different materials and intervals of bumper blocks on the WEC, and it was found that the beam was not strong enough to limit the motion of WEA. As a result, an improvement scheme of increasing the maximum volume of energy accumulator was presented to absorb the redundant kinetic energy of WEA.
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