Noise characteristics and acoustic design sensitivity of the helical gear system in wind turbine load

Park, Chan Il

doi:10.1007/s12206-022-1108-4

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…With the growing demand for high-volume production, there is a need to manufacture transmission gears that are both highly efficient and low in noise. The properties of gear tooth flanks generally affect not only the strength but also the efficiency and noise level of the gears in power transmissions [1][2][3][4][5]. While high precision grade gear pairs are believed to produce low-noise and low-vibration transmission systems, there are instances where even with the use of such gears, quiet gear power transmissions cannot be achieved [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Shape Deviation Network of an Injection-Molded Gear: Visualization of the Effect of Gate Position on Helix Deviation

Low,

Iba,

Yamazaki

et al. 2024

Applied Sciences

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The purpose of this study is to develop an evaluation method for assessing the relative relationship between gear tooth shape deviations on every gear tooth using network theory. Our previous study introduced a method for representing the phase difference between each helix deviation as a network, demonstrating that it is possible to identify the relative relationship between gear tooth deviations. However, there has been no in-depth analysis of the impact of injection molding on the gear’s phase difference network. In this paper, we begin by measuring the gear tooth shape deviation, calculating the correlation coefficient, and expressing it as an adjacency matrix. When the adjacency matrix was visualized and displayed as a pixel plot, a periodic pattern was formed. The relationship between the position of the gate used to inject molten resin material into the injection mold and the pixel plot were then investigated in detail, and it was confirmed that the helix deviation network of a gear manufactured with the injection molding process is useful as a new indicator for the manufacturing error of injection-molded plastic gear.

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