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RISS 인기검색어
- 검색키워드
- 저자 : Yanjun Ge (검색결과 3 건)
- 무료
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- 유료
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Transmission efficiency and optimization of the power‑confluence magnet planetary gear
Yanjun Ge,Dongning Liu 전력전자학회 2022 JOURNAL OF POWER ELECTRONICS Vol.22 No.9
The power confluence of increasing speed is realized prior to merging multiple input shafts with the same power into a single output. A new type of power-confluence magnet planetary gear (PMPG) transmission structure is proposed, and a design scheme of power confluence is given. By establishing a PMPG simulation model and combining the dynamic finite-element method with the response surface method, the relationship between the main structural parameters and transmission efficiency is optimized. Results show that an optimized structure can effectively reduce eddy current loss and improve transmission efficiency under the condition that the radial length of the structure remains unchanged.
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Multi‑objective parameter optimization of multi‑shaft ring‑plate magnetic gear
Yanjun Ge,Dongning Liu,Junyue Yang,Daming Wang 전력전자학회 2023 JOURNAL OF POWER ELECTRONICS Vol.23 No.3
Parameter setting and optimization are key steps to improving the transmission performance of eccentric permanent magnetgear. Studying this step makes it possible to analyze the transmission relationship between the design parameters, and improve both the operation stability and the carrying capacity of eccentric permanent magnet gear. Taking multi-shaft ring-plate magnet gear (MRMG) as the research object, this paper analyzes the influence of actual structural parameters on torque performance through the comprehensive sensitivity method, and selects the parameters with the greatest influence as the main optimization parameters. Then using the BSO algorithm and the BP neural network, a prediction model of MRMG electromagnetic torque and torque density is established, the relationship between each of the parameters is analyzed, and the optimization parameter points are determined. By comparison with finite element simulations and experiments, the built model and its measured results and FEM analysis are shown to have good accuracy (error < 6%). Moreover, the model can quickly and accurately obtain optimization parameters, and greatly improve the transmission performance of the structure (the maximum torque increases by 15%, and the torque density increases by 36%).
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Transmission performance of planetary permanent magnet gear with few pole difference
Junyue Yang,Yanjun Ge 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.12
To study the transmission characteristics of a planetary permanent magnet gear with few pole difference, a two-dimensional analytical model based on air gap magnetic field is established, the solutions of Laplace and Poisson equations are obtained by separating variables, and the analytical expression of air gap magnetic induction intensity is developed through coordinate transformation and superposition principle. The electromagnetic torque formula is derived further. On the basis of theoretical analysis, a single-chip experimental prototype with a rated torque of 45 Nm is designed and manufactured. The correctness of the analytical model of air gap magnetic field is verified by air gap magnetic field detection experiment. The critical static torque and magnetic torque angle characteristics are determined by static torque loading experiment. The correctness of the transmission principle and magnetic field analysis is verified by dynamic loading experiment, and the dynamic torque fluctuation is analyzed.
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