Vibration control of an electrorheological fluid-based suspension system with an energy regenerative mechanism

Choi, Seung–Bok; Seong, Min–Sang; Kim, K.-S.

doi:10.1243/09544070jauto968

Cited by 68 publications

(51 citation statements)

References 18 publications

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“…In linear electromagnetic energy harvesting systems (henceforth referred to as linear system) such as those studied in [11,[19][20][21] a linear generator is employed. However, in a rotational energy harvesting system (henceforth referred to as rotational system), an intermediate mechanism, such as rack and pinion [7,10,22] or a ball screw [23][24][25][26], is utilized to convert linear motion of the mass to rotational one to drive a rotary generator. The paper is distinguished by three main contributions.…”

Section: Output Power and Efficiency Of Electromagnetic Energymentioning

confidence: 99%

“…Table 2 presents the size and specifications of a number of commercial PM (permanent magnet) generators where h and r, respectively, are the length and the radius of the rotary generator coupled to the ball screw as presented in figure 3. Here, for each generator, (21), and then the optimum lead size for the ball screw is calculated from (22). Table 2 presents the ball screw lead values and the generated power of each system corresponding to the relevant selected PM generator in each case.…”

Section: Linear System Examplesmentioning

confidence: 99%

See 1 more Smart Citation

Output power and efficiency of electromagnetic energy harvesting systems with constrained range of motion

Hendijanizadeh¹,

Sharkh²,

Elliott³

et al. 2013

Smart Mater. Struct.

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Abstract. In some energy harvesting systems, the maximum displacement of the seismic mass is limited due to the physical constraints of the device. This is especially the case where energy is harvested from a vibration source with large oscillation amplitude (e.g., marine environment). For the design of inertial systems, the maximum permissible displacement of the mass is a limiting condition. In this paper the maximum output power and the corresponding efficiency of linear and rotational electromagnetic energy harvesting systems with a constrained range of motion are investigated. A unified form of output power and efficiency is presented to compare the performance of constrained linear and rotational systems. It is found that rotational energy harvesting systems have a greater capability in transferring energy to the load resistance than linear directly coupled systems, due to the presence of an extra design variable viz. the ball screw lead. Also, in this paper it is shown that for a defined environmental condition and a given proof mass with constrained throw, the amount of power delivered to the electrical load by a rotational system can be higher than the amount delivered by a linear system. The criterion that guarantees this favorable design has been obtained.

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Section: Output Power and Efficiency Of Electromagnetic Energymentioning

confidence: 99%

Section: Linear System Examplesmentioning

confidence: 99%

Output power and efficiency of electromagnetic energy harvesting systems with constrained range of motion

Hendijanizadeh¹,

Sharkh²,

Elliott³

et al. 2013

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…The damping of the EMD can be changed by replacing its external loads (resistors) [18,25]; this characteristic can be applied in vibration control. In addition, the EMDs are designed with MR or ER dampers [26,27] in order to increase the output damping force. However, the continuously real-time control of an EMD system to enhance its performance in vibration isolation while regenerating energy has not been fully studied.…”

Section: Introductionmentioning

confidence: 99%

An Energy Saving Variable Damping Seat Suspension System With Regeneration Capability

Ning

Sun

et al. 2018

IEEE Trans. Ind. Electron.

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In this paper, an energy saving variable damping seat suspension system is designed, manufactured and validated. A controllable electromagnetic damper (EMD), which consists of a permanent magnet synchronous motor (PMSM), a 3-phase rectifier, a metal-oxide-semiconductor field-effect transistor (MOSFET) switch module, an external resistor, a diode, and a capacitor, is designed and tested firstly. The EMD is integrated with a planetary gearbox to amplify its torque output, and both of them are installed on the centre of the scissors structure of a seat suspension. The EMD's damping property can be controlled by exerting pulse width modulation (PWM) signal with different duty cycles on the MOSFET switch module. By analysing the EMD test results and the seat suspension's kinematic, the controllable damping of the EMD is derived from 115.68 Ns/m to 669.74 Ns/m. A control method for vibration isolation is proposed considering that the generated damping force is reverse to the suspension's relative velocity, and its value is related to both the damping coefficient and the relative velocity, thus the desired control force can be partially achieved by the variable damper. The proposed variable damping seat suspension and its controller are validated on a 6-degree of freedom (6-DOF) vibration platform in both frequency domain and time domain. The test results show that the controlled variable damping seat suspension has better performance in vibration isolation than the proposed seat with highest and lowest damping, and the conventional passive one. In the meantime, the RMS value of the system harvestable power is 1.492 W, and the power consumption of the PWM control signal is very few. Therefore, this variable damping seat suspension can improve the ride comfort with ignorable energy cost.

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“…Regarding the previous research on MR dampers with multiple functions, Chen and Liao had developed MR dampers with power generation and sensing capabilities, and the characteristics of MR damping, energy harvesting, dynamic sensing were investigated [10]. Choi et al developed a vehicle suspension system, which combined the energy regeneration with an electrorheological (ER) damper [11]. Zuo et al developed an electromagnetic damper with energy harvesting for vehicle suspensions [12].…”

Section: Introductionmentioning

confidence: 99%

A regenerative damper with MR fluids working between gear transmissions

2013

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Magnetorheological (MR) dampers are used for semi-active vibration control of various dynamic systems. Existing MR dampers are usually cylinder-piston based design, which may limit the shapes and have constraints to the design of MR devices. In this paper, we propose a new MR-fluid working operation, in which MR fluids work between gear transmissions. This operation could provide more design flexibility. A prototype of the regenerative damper with MR fluids working between gear transmissions was designed, fabricated, and tested. This MR damper has the capability of power generation and velocity sensing. The feasibilities of the controllable MR damping force, power generation and velocity sensing are experimentally verified. The results of this research would be beneficial to advance the design and multiple functions of MR dampers while not limited to traditional piston-type design.

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Vibration control of an electrorheological fluid-based suspension system with an energy regenerative mechanism

Cited by 68 publications

References 18 publications

Output power and efficiency of electromagnetic energy harvesting systems with constrained range of motion

Output power and efficiency of electromagnetic energy harvesting systems with constrained range of motion

An Energy Saving Variable Damping Seat Suspension System With Regeneration Capability

A regenerative damper with MR fluids working between gear transmissions

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