Numerical Analysis on Load Sharing Characteristics of Multistage Face Gears in Planetary Transmission

Chen, Xingbin; Hu, Qingchun; Zhu, Chune

doi:10.1007/978-981-32-9941-2_6

Cited by 1 publication

(1 citation statement)

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“…The static analyses were mainly carried out with the aim of setting all of the basic parameters necessary for the simulations (the type of material, friction, constraint conditions, and contact algorithms used). Once all of the basic parameters had been appropriately set (by checking for the presence of any penetration and assessing that the distribution and stress values were acceptable), the model was further complicated by inserting an airbox and carrying out coupled Eulerian–Lagrangian (CEL) analyses [ 40 , 41 , 42 ]. The parameters that affected this second type of analysis were related to the evaluation of the acoustic emissions, for which we focused on the friction, lubrication, and rotation speed.…”

Section: Resultsmentioning

confidence: 99%

Noise Reduction in Spur Gear Systems

Liguori

Armentani

Bertocco

et al. 2020

Entropy

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This article lists some tips for reducing gear case noise. With this aim, a static analysis was carried out in order to describe how stresses resulting from meshing gears affect the acoustic emissions. Different parameters were taken into account, such as the friction, material, and lubrication, in order to validate ideas from the literature and to make several comparisons. Furthermore, a coupled Eulerian–Lagrangian (CEL) analysis was performed, which was an innovative way of evaluating the sound pressure level of the aforementioned gears. Different parameters were considered again, such as the friction, lubrication, material, and rotational speed, in order to make different research comparisons. The analytical results agreed with those in the literature, both for the static analysis and CEL analysis—for example, it was shown that changing the material from steel to ductile iron improved the gear noise, while increasing the rotational speed or the friction increased the acoustic emissions. Regarding the CEL analysis, air was considered a perfect gas, but its viscosity or another state equation could have also been taken into account. Therefore, the above allowed us to state that research into these scientific fields will bring about reliable results.

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Section: Resultsmentioning

confidence: 99%