Study on an Iris Idling Power Loss Suppression Method in Hydrodynamic Retarder

Wei, Wei; Tangzhu, Liu; Yan, Qingdong; An, Yuanyuan

doi:10.3901/jme.2020.20.237

Cited by 2 publications

(1 citation statement)

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“…In terms of HRs, Yan et al [8] used numerical simulation methods to study the velocity distribution, pressure distribution, and turbulent kinetic energy distribution of liquid flow inside the HR. Wei et al [9,10] conducted research on the suppression method of air loss, heat flow field, and parameters affecting the effectiveness characteristics of the HRs. Li et al [11] conducted in-depth research on the cavitation characteristics of the transient coupled flow field of the HR.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Study on Braking Performance of a New Eddy Current-Hydrodynamic Hybrid Retarder

Wang,

Guo,

2023

WEVJ

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Based on the principle of eddy current braking and hydraulic braking, a new eddy current-hydrodynamic hybrid retarder (ECHHR) is proposed. Based on the introduction of the working principle and structure of the ECHHR, the finite element analysis models of the electromagnetic field and the flow field of the ECHHR were established, respectively. The electromagnetic field distribution, the flow field velocity, and the flow field pressure in the ECHHR were numerically simulated. The air gap magnetic density, the eddy current braking torque, and the hydraulic braking torque under different excitation currents and different liquid filling rates were calculated. Finally, the braking performance of the EHHR was tested via experiments, and the effectiveness of the finite element analysis method was verified. The test results indicated that as the speed increased, the composite braking torque of the ECHHR increased approximately linearly. When the speed was 1000 r/min, the composite braking torque reached 2100 N·m. Compared to separate hydraulic braking and eddy current braking, the composite braking torque was relatively high in the full-speed range.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation Study on Braking Performance of a New Eddy Current-Hydrodynamic Hybrid Retarder

Wang,

Guo,

2023

WEVJ

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Numerical simulation of a new volumetric pump based on mechanical iris mechanism

Li,

Meng

2024

J. Phys.: Conf. Ser.

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Conventional volumetric pumps used in high-pressure systems have problems with complex structures and limited flow. Based on the working principle of hydraulic volumetric pumps, this article uses the motion mechanism of the iris mechanism to propose a new type of volumetric pump with a simple structure. Using the structure of the new volumetric pump as a basis, the instantaneous flow formula is derived, and the fluid domain of this new volumetric pump is simulated by Fluent. By comparing the theoretical value with the simulation value, the accuracy of the simulation result is verified, and the structural feasibility of the new volumetric pump is proved; based on the cavitation analysis, suggestions for optimizing the structure of the new volumetric pump are proposed; the new volumetric pump enhances the architecture of volumetric pumps and offers guidance for their structural design.

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Study on an Iris Idling Power Loss Suppression Method in Hydrodynamic Retarder

Cited by 2 publications

References 0 publications

Numerical Simulation Study on Braking Performance of a New Eddy Current-Hydrodynamic Hybrid Retarder

Numerical Simulation Study on Braking Performance of a New Eddy Current-Hydrodynamic Hybrid Retarder

Numerical simulation of a new volumetric pump based on mechanical iris mechanism

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