Prevention of resonance oscillations in gear mechanisms using non-circular gears
Prevention of resonance oscillations in gear mechanisms using non-circular gears
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DOI：
10.1016/j.mechmachtheory.2017.03.010
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发表时间：
2017-08
影响因子：
5.2
通讯作者：
Oleksii Karpov;P. Nosko;P. Fil;Oleksii Nosko;U. Olofsson
中科院分区：
文献类型：
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作者：
Oleksii Karpov;P. Nosko;P. Fil;Oleksii Nosko;U. Olofsson
齿轮机构的主要缺点之一是产生噪声和振动。本研究探讨了非圆齿轮在齿轮机构中用于防止共振振荡的适用性。分析了齿轮形心与名义圆的微小偏差对运动和振动特性的影响。结果表明，较大的偏差会导致较小的共振振幅，由于啮合频率的变化，同时在较高的附加动载荷的机构。确定了齿轮形心的形状，该形状提供了相对小的共振振幅和最小的附加动态载荷。为了在无数控滚齿机上加工微小非圆齿轮，研制了一种机械装置。
One of the main disadvantages of gear mechanisms is the occurrence of noise and vibrations. This study investigated the applicability of non-circular gears for preventing resonance oscillations in gear mechanisms. The influence of a small deviation of the gear centrodes from the nominal circles on kinematic and oscillatory characteristics was analysed. It was shown that a larger deviation results in a smaller resonance amplitude due to mesh frequency variability and simultaneously in higher additional dynamic loads on the mechanism. The shape of the gear centrodes was determined which provides a relatively small resonance amplitude with minimum additional dynamic loads. A mechanical device was developed to enable cutting of slightly non-circular gears on a hobbing machine without numerical control.