A Study on Hypoid Gears NVH Robustness

机译：斜齿轮NVH鲁棒性的研究

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Hypoid gears transmission error (TE) is a metric that is usually used to evaluate their NVH performance in component level. The test is usually done at nominal position as well as out of positions where the pinion and gear are moved along their own axis and also along offset direction to evaluate sensitivity of the measured TE to positional errors. Such practice is crucial in practical applications where the gear sets are inevitably exposed to off position conditions due to a) housing machining and building errors, b) deflections of housing, bearings, etc. under load and c) thermal expansions or contractions of housing due to ambient temperature variations. From initial design to development stage, efforts should be made to design the gear sets to be robust enough to all combinations of misalignments emanated from all three mentioned categories. This study is one such effort a) to evaluate main parameters affecting TE response of a hypoid gear set at various misalignment conditions and temperature variations under various loads as well as b) quantifying topography effects on TE response under such load and misalignment conditions. Approximating surface corrections/modifications from nominal through a bi-cubical polynomial, the effects of different topography errors on loaded TE (LTE) is evaluated. Looking at overall LTE response under various micro-geometric modifications one can see how significant micro-geometry of gears are in controlling LTE behavior.

机译：斜度齿轮传输错误（TE）是通常用于在组件级别中评估其NVH性能的指标。测试通常在标称位置以及小齿轮和齿轮沿着它们自己的轴移动并且沿偏移方向的位置处完成，以评估测量TE的灵敏度。这种做法在实际应用中是至关重要的，其中齿轮组由于a）壳体加工和建筑物的误差，b）壳体，轴承等的偏转，载荷和c）壳体的热膨胀或壳体收缩的偏转环境温度变化。从初始设计到开发阶段，应努力设计齿轮组，足以让所有三个类别的错位组合。本研究是一种这样的努力a）评估影响在各种载荷下的各种未对准条件和各种载荷下的温度变化的Te响应的主要参数以及B）在这种载荷和未对准条件下量化对Te响应的形貌效应。从标称通过双立方体多项式近似表面校正/修改，评估了加载TE（LTE）对不同形貌误差的影响。在各种微观几何修改下观察整体LTE响应，可以看出齿轮的显着微观几何学是如何控制LTE行为。

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《SAE Noise and Vibration Conference and Exhibition》|2017年|1 Electronic text data|共11页
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Mohsen Kolivand; Glen Steyer; Clifford Krieger; Max-Ferdinand Stroh;
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4. A Study on Hypoid Gears NVH Robustness [C] . Mohsen Kolivand, Glen Steyer, Clifford Krieger, SAE Noise and Vibration Conference and Exhibition . 2017

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A Study on Hypoid Gears NVH Robustness

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