Modeling and Experiments of a Hydraulic Electromagnetic Energy-Harvesting Shock Absorber

Guo, Sijing; Xu, Lin; Liu, Yilun; Guo, Xuexun

doi:10.1109/tmech.2017.2760341

Cited by 69 publications

(24 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As the movement in the vehicle suspensions is translational, the generation of a rotationally variable magnetic field requires a mechanism that converts translation into a rotation. These are well-known systems: rack-pinion [21][22][23], hydraulic [24][25][26][27][28][29], ball-screw [30][31][32][33], and some more exotic such as the "Linkage mechanism" [34], "Two-Leg motion" [35], or using flywheel drive [36]. All these systems have their own equivalent inertias, backlashes, and frictions affecting the dynamic behavior of the shock absorber and, therefore, the vehicle.…”

Section: Introductionmentioning

confidence: 99%

Design and Potential Power Recovery of Two Types of Energy Harvesting Shock Absorbers

2019

View full text Add to dashboard Cite

Numerous authors have studied Energy Harvesting Shock Absorbers (EHSA) over the last decade, proposing different designs with diverse geometries, parameters, and components. This article analyzes the energy recovery potential of two types of rotational EHSA, those that use ball-screw and those based on cable transmission. This paper presents the design, manufacturing and mathematical modeling of both options as well as the estimation of the potential power recovery with both technologies. Two types of vehicles are used as references, each one with the characteristic curves of their shock absorbers. Results are presented for different vehicle speeds and road types. Finally, some qualitative characteristics of both EHSAs are detailed to be taken into consideration for their possible use in vehicle suspension.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and Potential Power Recovery of Two Types of Energy Harvesting Shock Absorbers

2019

View full text Add to dashboard Cite

show abstract

“…Furthermore, Xu et al designed an energy recovery damper prototype for heavy vehicles and built a dynamic model to study damping characteristics of the designed damper. ey showed that the total damping force can be divided into the resistance force, friction damping force, inertia force, and accumulator force [14]. Wu et al studied the influence of the main parameters of the accumulator on the hydraulic system through simulation and experiment [15].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Damping Characteristics of a Hydraulic Shock Absorber

Yang

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

In the present study, a hydraulic shock absorber is proposed. Since the damper is mainly used in suspension energy recovery system, the damping characteristics of the damper under no-load state are studied in this paper. Structural design is conducted so that the unidirectional flow of the oil drives the hydraulic motor to generate electricity. Meanwhile, an asymmetrical extension/compression damping force is obtained. A mathematical model of the shock absorber is established, and the main characteristics of the inherent damping force are obtained. Based on the established model, effects of the accumulator volume, accumulator preinflation pressure, hydraulic motor displacement, check valve inner diameter, and spring stiffness, hydraulic line length and inner diameter on the indicator characteristics are analyzed. Moreover, a series of experiments are conducted on the designed damper to evaluate the characteristics of the inherent damping force and analyze the effect of the accumulator volume and preinflation pressure on the damping characteristics.

show abstract

“…Pinho et al [7] and Yang et al [8] designed the structure of the relief valve and the pressure retaining valve to improve the vibration suppression performance. Guo et al [9] designed a hydraulic electromagnetic energy-harvesting shock absorber for heavy vehicles to mitigate the vibration of vehicle suspensions. All these researches considered about improving the performance of the hydraulic components However, for composite hydraulic press, these researches can only solve the vibration problem of several types of press, instead of most presses universally.…”

Section: Introductionmentioning

confidence: 99%

Improved Migration Genetic Algorithm Optimization for Variable-Speed Falling Trajectory of Mobile Crossbeam in Composite Hydraulic Press With Pressure Shock

Lin

Zhang

et al. 2019

IEEE Access

View full text Add to dashboard Cite

The optimal design of the mobile crossbeam falling motion control system is an important way to improve the stability of the composite hydraulic press. At present, the falling control strategy is mostly designed by the empirical method, which has the disadvantages of low efficiency and long time. In this paper, a nonlinear hydraulic control system model and three types of falling trajectory mathematical models are established for the mobile crossbeam falling motion control system. Based on the comparison of the motion characteristics of each trajectory, a cubic polynomial falling trajectory which can effectively suppress vibration is designed. This paper proposes a method of trajectory planning based on the spline interpolation function and optimizes the trajectory globally with an improved migration genetic algorithm; the optimized system ITAE index is improved by 49.56% compared with the uniform speed trajectory. The experimental results show that the optimized trajectory's vibration settling time is reduced by 62.91% and the maximum pressure fluctuation is reduced by 25.34% compared with the uniform speed trajectory.INDEX TERMS Composite hydraulic press, pressure shock, variable-speed falling, trajectory optimization, improved migration genetic algorithm.

show abstract

Modeling and Experiments of a Hydraulic Electromagnetic Energy-Harvesting Shock Absorber

Cited by 69 publications

References 28 publications

Design and Potential Power Recovery of Two Types of Energy Harvesting Shock Absorbers

Design and Potential Power Recovery of Two Types of Energy Harvesting Shock Absorbers

Analysis of Damping Characteristics of a Hydraulic Shock Absorber

Improved Migration Genetic Algorithm Optimization for Variable-Speed Falling Trajectory of Mobile Crossbeam in Composite Hydraulic Press With Pressure Shock

Contact Info

Product

Resources

About