• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The 3rd international basic research conference on rotorcraft technology: Basic research advance in rotorcraft technology >Dynamic Behavior of Gear Systems in Rotorcraft Applications
【24h】

Dynamic Behavior of Gear Systems in Rotorcraft Applications

机译：旋翼飞机应用中齿轮系统的动态特性

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This work develops nonlinear dynamic models to analyze the vibration of gear systems that are commonly used in rotorcraft applications. The gear mesh interface model developed is expandable to accommodate any configuration. Considering a gear pair, the modeling is verified with finite element analysis and experimental measurements from the literature. It is shown that tooth surface modifications and deflections (static or dynamic) cause separation at portions of contact lines (partial contact loss) of the gear teeth. The dynamic response of a helical gear pair is nonlinear because of partial contact loss. The model is extended to a multi-mesh helicopter transmission, where static windup of the housing, shafts, and bearings couple with the gear mesh deflections. Dynamic analysis of this multi-mesh transmission gives crucial vibration information that helps reduce cabin noise. The vibration modes of helical planetary gears are examined and classified. It is shown that all vibration modes of helical planetary gears fall under three well-defined categories: Rotational-axial; translational-tilting; and planet. This categorization generalize that of two-dimensional spur planetary gears, and it persists for axially asymmetric configurations common in practical applications such as uneven contact pressure at the gear teeth, overhung gears, and so on.
机译：这项工作开发了非线性动力学模型，以分析旋翼飞机应用中常用的齿轮系统的振动。开发的齿轮啮合界面模型可扩展以适应任何配置。考虑齿轮对，通过有限元分析和文献中的实验测量对模型进行验证。结果表明，齿面的变形和偏斜（静态或动态）会导致齿轮齿的接触线部分分离（部分接触损耗）。由于部分接触损耗，斜齿轮副的动态响应是非线性的。该模型扩展到多网格直升机传动装置，其中，壳体，轴和轴承的静态缠绕与齿轮啮合挠度耦合。对这种多啮合传动的动态分析提供了至关重要的振动信息，有助于降低机舱噪音。对斜齿轮行星齿轮的振动模式进行了检查和分类。结果表明，斜齿轮行星齿轮的所有振动模式都可以分为三个明确定义的类别：轴向旋转；平移倾斜和星球。该分类概括了二维正齿轮行星齿轮的分类，并且对于实际应用中常见的轴向不对称配置（例如轮齿上的接触压力不均匀，悬架齿轮等）持续存在。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号