RESEARCH ON DYNAMIC RESPONSE CHARACTERISTICS OF SHIP-SHAPED OSCILATING WAVE ENERGY CONVERTER

Yue Wanzhen; Ye Yin; Fan Zhaohui; Sheng Songwei; Yu Peng; Fu Rong

doi:10.19912/j.0254-0096.tynxb.2023-1572

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (2) : 25-31. DOI: 10.19912/j.0254-0096.tynxb.2023-1572

RESEARCH ON DYNAMIC RESPONSE CHARACTERISTICS OF SHIP-SHAPED OSCILATING WAVE ENERGY CONVERTER

Yue Wanzhen^1~3, Ye Yin^1~3, Fan Zhaohui^1~3, Sheng Songwei^1~3, Yu Peng⁴, Fu Rong⁴

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Abstract

The motion response and energy capture characteristics of a ship-shaped pendulum wave energy converter was studied. The wave energy converter uses a ship-shaped pendulum as a wave absorbing floating body, which rotates around a main shaft driven by waves. The main shaft is connected to a support column fixed on the seabed, which drives the built-in mechanical power extraction system to generate electricity. Based on linear potential flow theory and Newton's second law, a mathematical model of the motion of the wave energy device was established and solved, and the energy capture width ratio, motion response, and output power of the device under different periods and different damping were obtained. The results show that the energy capture width ratio and pendulum angle amplitude of the device first increase and then decrease with the increase of the period, reaching a maximum energy capture width ratio of 120.92% at a period of 4.2 s and a damping of 80000 N·m·s/rad. The maximum generating power of the device is 122 kW at a period of 4.4 s and a damping of 44000 N·m·s/rad.

Key words

wave energy conversion / dynamic response characteristics / potential flow / energy capture width ratio / resonance

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Yue Wanzhen, Ye Yin, Fan Zhaohui, Sheng Songwei, Yu Peng, Fu Rong. RESEARCH ON DYNAMIC RESPONSE CHARACTERISTICS OF SHIP-SHAPED OSCILATING WAVE ENERGY CONVERTER[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 25-31 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1572

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