A new adaptive hybrid electromagnetic damper: modelling, optimization, and experiment

Asadi, Ehsan; Ribeiro, Roberto; Khamesee, Mir Behrad; Khajepour, Amir

doi:10.1088/0964-1726/24/7/075003

Cited by 50 publications

(37 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Lenz's law states that the direction of the induced voltage in the loop is such that it opposites the changes in the magnetic field created by it. The combination of these 2 laws provides the following formulation,

V_{emf} = - normalN \frac{dφ}{dt}

where V, N, and φ represent the induced voltage, number of turns in conductor coil, and flux through each turn of coil, respectively. In order to mathematically model the electromagnetic component of the energy harvester, a lumped equivalent magnetic circuit based on circuitry model was implemented, as shown in Figure B.…”

Section: Structural Design Of the Harvestermentioning

confidence: 99%

“…In order to mathematically model the electromagnetic component of the energy harvester, a lumped equivalent magnetic circuit based on circuitry model was implemented, as shown in Figure B. By neglecting the magnetic flux leakage in the center rod, Ampere's law is used for developing the contour of indicated circuit in Figure as below,

\int_{C} H . italicdl = \int_{Magnet} H . italicdl + \int_{(4, 6) ((), copper)} H . italicdl + \int_{(2, 5, 8) ((), Iron pole)} H . italicdl + \int_{(2, 5, 8) ((), gap)} H . italicdl = 0

…”

Section: Structural Design Of the Harvestermentioning

confidence: 99%

“…As the magnetic flux leakage is neglected, one can apply the continuity condition to determine the magnetic flux densities for all parts of the electromagnetic component of the energy harvester in terms of B m which is the magnetic flux density of the permanent magnet. Thus, we can write,

A_{m} B_{m} = A_{italiciron_italicpole} B_{italiciron_italicpole} = A_{tube} B_{tube} = A_{gap} B_{gap} = A_{coil} B_{coil} .

Solving the above equation based on B m results in:

B_{italiciron_italicpole} = \frac{π ((), r^{2} - r_{rod}^{2}) B_{m}}{2 italicrπ \frac{t_{italiciron}}{2}}

B_{tube} = \frac{π ((), r_{rpm}^{2} - r_{rod}^{2}) B_{m}}{π ((), r_{tube}^{2} - r_{coil}^{2})}

B_{gap} = \frac{π ((), r_{pm}^{2} - r_{rod}^{2}) B_{m}}{2 italicrπ ((), \frac{t_{iron}}{2})}

B_{coil} = \frac{π ((), r_{pm}^{2} - r_{rod}^{2}) B_{m}}{2 italicrπ ((), t_{})}

…”

Section: Structural Design Of the Harvestermentioning

confidence: 99%

See 2 more Smart Citations

A heaving point absorber-based triboelectric-electromagnetic wave energy harvester: An efficient approach toward blue energy

et al. 2018

Self Cite

View full text Add to dashboard Cite

This paper presents a hybridized triboelectric-electromagnetic generator based on heaving point absorbers to harvest the energy of water waves. The device consists of a cylindrical freestanding grating triboelectric generator (TENG) and a 3-phase tubular electromagnetic generator (EMG). The proposed system incorporates a slider which is capable of moving through a stator under the motion of a floating buoy. The floating component can heave up and down while facing water waves without being affected by the wave direction. The performance of the TENG and EMG units and corresponding electrical outputs are evaluated under various structural, dynamical, and electrical conditions. It isshown that the number of segments in the TENG unit, phase number in the EMG unit, and motion frequency in both harvesters are the key elements in the outputs of the hybridized system. For the first time, the effect of irregular wave motion on the TENG harvester performance is systematically explored using a well-known wave spectrum. Also, the performance of the hybridized system for charging a storage unit is evaluated in details. The presented energy harvester shows a great potential toward harvesting the energy of water waves as well as hydrodynamic sensing applications. In addition, this research provides a framework for the exploration of irregular wave motion in TENG-based energy harvesters.

show abstract

V_{emf} = - normalN \frac{dφ}{dt}

Section: Structural Design Of the Harvestermentioning

confidence: 99%

\int_{C} H . italicdl = \int_{Magnet} H . italicdl + \int_{(4, 6) ((), copper)} H . italicdl + \int_{(2, 5, 8) ((), Iron pole)} H . italicdl + \int_{(2, 5, 8) ((), gap)} H . italicdl = 0

…”

Section: Structural Design Of the Harvestermentioning

confidence: 99%

A_{m} B_{m} = A_{italiciron_italicpole} B_{italiciron_italicpole} = A_{tube} B_{tube} = A_{gap} B_{gap} = A_{coil} B_{coil} .

Solving the above equation based on B m results in:

B_{italiciron_italicpole} = \frac{π ((), r^{2} - r_{rod}^{2}) B_{m}}{2 italicrπ \frac{t_{italiciron}}{2}}

B_{tube} = \frac{π ((), r_{rpm}^{2} - r_{rod}^{2}) B_{m}}{π ((), r_{tube}^{2} - r_{coil}^{2})}

B_{gap} = \frac{π ((), r_{pm}^{2} - r_{rod}^{2}) B_{m}}{2 italicrπ ((), \frac{t_{iron}}{2})}

B_{coil} = \frac{π ((), r_{pm}^{2} - r_{rod}^{2}) B_{m}}{2 italicrπ ((), t_{})}

…”

Section: Structural Design Of the Harvestermentioning

confidence: 99%

See 1 more Smart Citation

A heaving point absorber-based triboelectric-electromagnetic wave energy harvester: An efficient approach toward blue energy

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…e regenerative shock absorber will be able to harvest 16-64 W power. Asadi et al [5,6] proposed a hybrid damper combining TPMLM with hydraulic structure.…”

Section: Introductionmentioning

confidence: 99%

Structural Parameter Optimization of a Tubular Permanent‐Magnet Linear Machine for Regenerative Suspension

Zhang

Liu

et al. 2019

Shock and Vibration

View full text Add to dashboard Cite

e regenerative suspension can effectively recover the vibration potential energy of the vehicle suspension, thus has broad prospects in application. In this paper, a tubular permanent-magnet linear motor (TPMLM) with the Halbach array magnetic pole is analyzed. e magnetic field analysis method of the excitation source separation is proposed, and then, the transient analytical model of output electromagnetic force and the external circuit characteristic under displacement excitation is established. A modified particle swarm optimization algorithm is further adopted to optimize the structural parameters of TPMLM. By comparing with the finite element analysis, the correctness of the proposed analytical model and the optimization are verified. is work lays the theoretical foundation for extensive application of the regenerative suspension.

show abstract

“…In addition, EM actuators do not require continuous power, intricate control, or any fluid [20]. Among the various types of EM actuators, the tubular permanent magnet actuator (TPMA) is one of the most suitable actuators with all of the required characteristics [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Design of a Tubular Permanent Magnet Actuator for Active Lateral Secondary Suspension of a Railway Vehicle

et al. 2017

View full text Add to dashboard Cite

This paper describes the finite element (FE)-based design of a slotted tubular permanent magnet actuator (TPMA) used in railway vehicle active lateral secondary suspension that improves the actuator's thrust and lowers its cogging force under thermal and geometric constraints. To consider the electromagnetic and thermal fields and the complex interactions among the design variables, design was carried out in an electromagnet and thermal field environment using accurate and time-effective FE analysis. A six-slot prototype model was fabricated to estimate critical thermal parameters, which are difficult to compute without experiments. Three-dimensional FE analysis using the determined thermal parameters was adopted to calculate the precise thermal distribution of the TPMA and verify the forced air-cooling effect. A prototype TPMA with a quasi-Halbach array of permanent magnets and a moving magnet was manufactured through the FE-based design process; the dynamic, electromagnetic, and thermal characteristics of the prototype TPMA were validated experimentally.

show abstract

A new adaptive hybrid electromagnetic damper: modelling, optimization, and experiment

Cited by 50 publications

References 29 publications

A heaving point absorber-based triboelectric-electromagnetic wave energy harvester: An efficient approach toward blue energy

A heaving point absorber-based triboelectric-electromagnetic wave energy harvester: An efficient approach toward blue energy

Structural Parameter Optimization of a Tubular Permanent‐Magnet Linear Machine for Regenerative Suspension

Design of a Tubular Permanent Magnet Actuator for Active Lateral Secondary Suspension of a Railway Vehicle

Contact Info

Product

Resources

About