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СпутникиРНSpaceXРоскосмосNASAHarnessing the kinetic energy form the ambient such as ocean waves or tides can be of great values to the accelerated development of ocean. Traditional wave energy conversion devices are usually based on the fluid power or mechanical power transmission design, where the multi-step energy conversion design would result in overall high energy loss of the system. Facing this challenge, a new energy conversion method combining linear magnetic generator and pneumatic power transmission is proposed in this paper, where a solenoid tube with an oscillating magnet inside powered by a pneumatic cylinder. By using the compressibility of gas and the ratio difference of piston, the amplitude and frequency of power generation motion can be improved, and more flexible transmission layout and energy conversion efficiency can be realized. To test out the proposed architecture, a prototype convertor is designed and assembled in lab. A testbed is also designed to drive the prototype with a slider-crank mechanism, and the displacement of the power generating element as well as the induced electrical potentials are measured. Initial results have shown that the proposed convertor can achieve electrical power generation at 1 V maximum, and the motion of the power generating element is affected by the external resistive load settings, in inversely proportional relationships at −15.79 mm/Ω, −22.25 mm/Ω, and − 45.28 mm/Ω under 0.5 Hz, 0.75 Hz and 1 Hz external excitations.
Harnessing the kinetic energy form the ambient such as ocean waves or tides can be of great values to the accelerated development of ocean. Traditional wave energy conversion devices are usually based on the fluid power or mechanical power transmission design, where the multi-step energy conversion design would result in overall high energy loss of the system. Facing this challenge, a new energy conversion method combining linear magnetic generator and pneumatic power transmission is proposed in this paper, where a solenoid tube with an oscillating magnet inside powered by a pneumatic cylinder. By using the compressibility of gas and the ratio difference of piston, the amplitude and frequency of power generation motion can be improved, and more flexible transmission layout and energy conversion efficiency can be realized. To test out the proposed architecture, a prototype convertor is designed and assembled in lab. A testbed is also designed to drive the prototype with a slider-crank mechanism, and the displacement of the power generating element as well as the induced electrical potentials are measured. Initial results have shown that the proposed convertor can achieve electrical power generation at 1 V maximum, and the motion of the power generating element is affected by the external resistive load settings, in inversely proportional relationships at −15.79 mm/Ω, −22.25 mm/Ω, and − 45.28 mm/Ω under 0.5 Hz, 0.75 Hz and 1 Hz external excitations.
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This work was supported by the National Natural Science Foundation of China (Grant No. 52471357).
Dalian Maritime University, Dalian, LN, 116026, China
Hao Tian, Yuhong Zhao, Shilin Kuang & Yongjun Gong
Authors
Correspondence to Hao Tian.
School of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang, China
Jianrong Tan
School of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang, China
Zhenyu Liu
Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang, China
Weifei Hu
© 2027 The Chinese Mechanical Engineering Society
Tian, H., Zhao, Y., Kuang, S., Gong, Y. (2027). Experimental Study of a Pneumatic-Electromagnetic Linear Power Generator Based on Pneumatic Power Transmission. In: Tan, J., Liu, Z., Hu, W. (eds) Advances in Mechanical Design. ICMD 2025. Mechanisms and Machine Science, vol 206. Springer, Singapore. https://doi.org/10.1007/978-981-95-7904-4_81
Download citationDOI: https://doi.org/10.1007/978-981-95-7904-4_81
Published: 25 June 2026
Publisher Name: Springer, Singapore
Print ISBN: 978-981-95-7903-7
Online ISBN: 978-981-95-7904-4
eBook Packages: Mechanical Engineering (R0)Springer Nature Proceedings excluding Computer Science
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