A Novel Heaving Ocean Wave Energy Harvester with a Frequency Tuning Capability

Viet, N. V.1; Carpinteri, A.2; Wang, Q.3

2019-06

10.1007/s13369-018-03707-4

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING   影响因子和分区

2193-567X

2191-4281

This study introduces a novel wave energy harvester (WEH) with frequency conversion capability to convert the ocean wave energy to usable electricity based on the piezoelectric effect. The presented WEH is with characteristics of space saving and minimized component quantities and is made of a cylindrical case reciprocally moving with respect to the fixed core shaft attached to identical magnetic bars. The cylindrical case contains four magnetic bar-mass-spring-lever-piezoelectric systems arranged symmetrically each other to the fixed shaft. By this smart design, the WEH is capable of converting the low frequency of ocean waves to a higher excitation frequency of motions on the piezoelectric transducer to harness higher electric power and reduce electrical leakage. A mathematical model of the WEH considering the wave-structure interaction is developed to evaluate the effectiveness of the converter. The simulation results reveal that the occurrence of resonance can lead to an outstanding power output via adjusting the distance between two adjacent magnetic bars. The power output is realized up to 750 W with the converter height and diameter, ocean wave height, and wave period being 1 m, 1 m, 1.5 m and 8 s, respectively.

Wave energy converter Piezoelectric technology Heaving harvester Ocean wave energy Frequency conversion Wave-structure interaction

SCI

英语

其他

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000469444200041

SPRINGER HEIDELBERG

ENGINEERING

Web of Science

1.Khalifa Univ Sci & Technol, Dept Mech, POB 127788, Abu Dhabi, U Arab Emirates
2.Politecn Torino, Dept Struct Geotech & Bldg Engn, Corso Duca Abruzzi, Turin, Italy
3.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Guangdong, Peoples R China

Viet, N. V.,Carpinteri, A.,Wang, Q.. A Novel Heaving Ocean Wave Energy Harvester with a Frequency Tuning Capability[J]. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,2019,44(6):5711-5722.

Viet, N. V.,Carpinteri, A.,&Wang, Q..(2019).A Novel Heaving Ocean Wave Energy Harvester with a Frequency Tuning Capability.ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,44(6),5711-5722.

Viet, N. V.,et al."A Novel Heaving Ocean Wave Energy Harvester with a Frequency Tuning Capability".ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 44.6(2019):5711-5722.