A local discontinuous Galerkin method for the compressible Reynolds lubrication equation

Arregui, Iñigo; Cendán, J. Jesús; González, Maŕıa

doi:10.1016/j.amc.2018.12.060

Cited by 4 publications

(1 citation statement)

References 20 publications

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“…When the pressure of the gas bearing reaches the maximum value, the flow field will rupture, leading to the failure of the Reynolds equation. Since the film flow field follows the Reynolds boundary condition, [25][26][27] the internal gas flow should meet:…”

Section: Gas Film Boundary Conditionsmentioning

confidence: 99%

Analysis of flow field characteristics of multi-degree-of-freedom motor with air-floatation

Xing

Wang

et al. 2021

Advances in Mechanical Engineering

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In order to combine the working performance of the motor and the specific requirements for accuracy, a model combining gas bearing with multi-degree-of-freedom (MDOF) motor is invoked. The bearing structure is optimized in terms of lubrication characteristics, which makes the motor life and deflection accuracy have been significantly improved. This kind of special bearing mainly provides a certain supporting force for the motor. Its stability directly affects the output performance of the motor. It should be ensured that the bearing can be used as a stable supporting structure. This paper mainly analyzes the flow field characteristics of this kind of motor, and discusses the stability of the motor by changing the gas film thickness and the motor rotor speed. Firstly, the structure and basic parameters of the air bearing motor are introduced, and the role of the bearing in the motor is described. Then, the film flow field is analyzed theoretically and simulated by finite element software. Finally, the experimental platform of gas bearing stability is built to verify the rationality of finite element analysis. The results provide references for the application of gas bearings in MDOF motors, and provide a direction for the development of precision in MDOF motors.

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Section: Gas Film Boundary Conditionsmentioning

confidence: 99%

Analysis of flow field characteristics of multi-degree-of-freedom motor with air-floatation

Xing

Wang

et al. 2021

Advances in Mechanical Engineering

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Electromagnetic Characteristics and Modal Analysis of Multi-DOF Motors With Air-Floation

Liu

Xing

et al. 2022

IEEE Access

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Electromagnetic calculation and kinematics analysis of multi-DOF motor with air-floation

Xing

Wang

et al. 2022

International Journal of Applied Electromagnetics and Mechanics

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In view of the fact that the transmission mode of the multi-DOF motor hinders its further development, the gas bearing is applied to the multi-DOF motor to form a new structure of the multi-DOF motor with air-floation (AMM). AMM not only improves the motor’s motion characteristics and transmission performance, but also basically does not cause environmental pollution. AMM uses porous static pressure gas bearing as the support structure, and completes the multi-DOF movement by controlling the energizing strategy of the coils. This paper introduces the structure of AMM, analyzes the basic working principle of AMM, and solves the air gap magnetic field; the kinematics model of the motor is established, the motion of the motor is controlled with the help of virtual simulation software, and the motion trajectory of the motor is obtained through the marked points of the output shaft. Finally, the AMM was verified by experiments, the error of experiment and simulation was controlled at 5%, and the kinematics characteristics of the motor met the design requirements. The research results provide a new idea for the development of multi-DOF motor.

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A local discontinuous Galerkin method for the compressible Reynolds lubrication equation

Cited by 4 publications

References 20 publications

Analysis of flow field characteristics of multi-degree-of-freedom motor with air-floatation

Analysis of flow field characteristics of multi-degree-of-freedom motor with air-floatation

Electromagnetic Characteristics and Modal Analysis of Multi-DOF Motors With Air-Floation

Electromagnetic calculation and kinematics analysis of multi-DOF motor with air-floation

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