Modeling and Analysis of a Hydraulic Energy-Harvesting Shock Absorber

Wu, Zhifei; Xu, Guangzhao

doi:10.1155/2020/1580297

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…The results showed that the regenerated energy's root-mean-squared (RMS) was up to 107.94 W at 50 km/h. Wu et al [29] proposed a hydraulic energy-harvesting shock absorber prototype. An energy-harvesting suspension integrated in a hydraulically interconnected suspension system was introduced by Chen et al [30], which can generate up to 421 W at 4 Hz frequency and 40 mm displacement.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Performance of a Magnetic Energy-Harvesting Suspension: Analysis and Experimental Verification

Zhou

Jin

et al. 2023

Actuators

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The advantages of the proposed novel magnetic energy-harvesting suspension (MEHS) are high safety, compact structure and convenient maintenance, compared with the previous studies. However, the force generated by the energy harvester with harvesting energy can affect the motion of the mechanical system. Therefore, this paper aims to analyze the ride comfort and road handling of the MEHS, and investigates the dynamic performance of the MEHS. Firstly, the structure and the working principle of the MEHS are illustrated and introduced, and the dynamic mechanism of the quarter-vehicle with the MEHS is revealed and investigated. Secondly, the effects of the electromechanical coupling coefficient and external load resistance on the dynamic performance are investigated by numerical calculation. An experimental setup is established to verify the dynamic performance of the proposed MEHS. According to the experimental results, the dynamic performance of the suspension is contradictory with the increase of the external load resistance at the periodic frequency 7 Hz. And compared with the passive suspension, the dynamic performance of the MEHS is changed at various excitations, in which the sprung displacement and relative dynamic load of the tire of MEHS at the periodic frequency 3.3 Hz are reduced by 39.45% and 41.18%, respectively. Overall, the external load resistance of the proposed MEHS can be utilized to realize the variable damping of the suspension system and reduce the effect of vibration on the suspension system at the resonance frequency. And the dynamic performance has been verified in the laboratory, which lays the foundation for the dynamic analysis in a real vehicle.

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Section: Introductionmentioning

confidence: 99%

Dynamic Performance of a Magnetic Energy-Harvesting Suspension: Analysis and Experimental Verification

Zhou

Jin

et al. 2023

Actuators

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“…Further, Li also conducted a research on the dynamic characteristics of regenerative shock absorber with a mechanical check valve, to improve the quality of the regenerated power [22]. Wu and long also proposed a HESA prototype analyze the damping force by varying load resistance [23,24].The main purpose of the research is to optimize the comfort of the vehicle after using the energy-feeding suspension. There is a great energy potential in the car suspension, HESA attract more recognition.…”

Section: Introductionmentioning

confidence: 99%

A High-Efficiency Energy Harvesting by Using Hydraulic Electromagnetic Regenerative Shock Absorber

Iqbal

Wang

et al. 2021

Proceedings of IncoME-V &Amp; CEPE Net-2020

Self Cite

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This article intends a hybrid energy harvesting shock absorber design which comprehends energy harvesting of automobile suspension vibration dissipation. A mathematical model of the energy harvesting prototype is established, and simulation results show that the dissipation energy can be recovered by varying the feed module, thereby got the damping forces ratio at different compression and extension stroke. The energy conversion from hydraulic energy to mechanical energy mainly then mechanical energy converted into electrical energy furthermore we can rechange our battery from this recovered energy. The advanced mathematical model and prototype proposed maximum ride comfort meanwhile recovered the suspension energy and fuel saving. This article shows the simulation results verifying it with prototype test results. The damping force of expansion stroke is higher than the damping force of compression stroke. The damping characteristics curves and speed characteristics curves verify the validity by simulation and prototyping damper at different amplitudes of off-road vehicles. The Hydraulic Electromagnetic Regenerative Shock Absorber (HESA) prototype characteristic is tested in which 65 watts recovered energy at 1.67Hz excitation frequency. So, 14.65% maximum energy recovery efficiency got at 20mm rod diameter and 8 cc/rev motor displacement. The damping characteristics of the HESA prototype examined and it has ideal performance as the standard requirements of the National Standard QC/T 491-1999.

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“…Among all the energy harvesting shock absorbers, the hydraulic energy harvesting shock absorber was put into the application earlier than other types, attributable to its relatively simple structure [ 30 ]. Wu et al [ 31 ] established a mathematical model of the hydraulic energy regenerative shock absorber and conducted a series of bench tests. The results showed that the peak recovery power reached 505.52 W, and the recovery efficiency was 14.5%.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic Integrated Interconnected Regenerative Suspension: Modeling and Characteristics Analysis

et al. 2021

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A novel suspension system, the hydraulic integrated interconnected regenerative suspension (HIIRS), has been proposed recently. This paper demonstrates the vibration and energy harvesting characteristics of the HIIRS. The HIIRS model is established as a set of coupled, frequency-dependent equations with the hydraulic impedance method. The mechanical–fluid boundary condition in the double-acting cylinders is modelled as an external force on the mechanical system and a moving boundary on the fluid system. By integrating the HIIRS into a half car model, its free and forced vibration analyses are conducted and compared with an equivalent traditional off-road vehicle. Results show that the natural frequency and the damping ratio of the HIIRS-equipped vehicle are within a proper range of a normal off-road vehicle. The root mean square values of the bounce and roll acceleration of the HIIRS system are, respectively, 64.62 and 11.21% lower than that of a traditional suspension. The average energy harvesting power are 186.93, 417.40 and 655.90 W at the speeds of 36, 72 and 108 km/h for an off-road vehicle on a Class-C road. The results indicate that the HIIRS system can significantly enhance the vehicle dynamics and harvest the vibration energy simultaneously.

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Modeling and Analysis of a Hydraulic Energy-Harvesting Shock Absorber

Cited by 4 publications

References 18 publications

Dynamic Performance of a Magnetic Energy-Harvesting Suspension: Analysis and Experimental Verification

Dynamic Performance of a Magnetic Energy-Harvesting Suspension: Analysis and Experimental Verification

A High-Efficiency Energy Harvesting by Using Hydraulic Electromagnetic Regenerative Shock Absorber

Hydraulic Integrated Interconnected Regenerative Suspension: Modeling and Characteristics Analysis

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