• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium on International Automotive Technology >A Novel Transfer Path Analysis Method Delivering a Fast and Accurate Noise Contribution Assessment
【24h】

A Novel Transfer Path Analysis Method Delivering a Fast and Accurate Noise Contribution Assessment

机译：一种新型转移路径分析方法，提供快速准确的噪声贡献评估

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Since its first publication in the beginning of the eighties, Transfer Path Analysis (TPA) has evolved into a widely used tool for noise and vibration troubleshooting and internal load estimation, and this for single-source as well as multivariate problems. One of the main bottlenecks preventing its even more widespread use in the actual vehicle development process is the test time to build the full data model, requiring not only in-operation tests but also extensive Frequency Response Function tests. As a consequence, several new approaches have appeared over the past years attempting to circumvent this limitation, such as Fast and Multilevel TPA and Operational TPA. The latter method attracts quite some attention as it only requires operational data measured at the path references and target locations. However, being a transmissibility method as known from structural dynamics, its application requires special care to overcome the related ill-conditioning and missing-reference-sensitivity problems and it essentially leads to assessing a co-existence relationship between target responses and path references and does not allow to draw causality conclusions in terms of paths. Hence a new approach is proposed, using a parametric model for the estimation of loads. This makes the method scalable, enabling the engineer to use a simpler model based on a small amount of measurement data for quick troubleshooting or increase accuracy by using a more complex model together with additional measurements.
机译：自八十年代初期首次出版以来，转移路径分析（TPA）已经演变为噪声和振动故障排除和内部负载估计的广泛使用的工具，这对于单源以及多变量问题。在实际的车辆开发过程中阻止其更广泛使用的主要瓶颈之一是建立完整数据模型的测试时间，不仅需要运行的测试，而且需要广泛的频率响应函数测试。因此，在过去几年试图规避这一限制的几个新方法，例如快速和多级TPA和操作TPA。后一种方法吸引了非常关注，因为它只需要在路径引用和目标位置处测量的操作数据。然而，作为从结构动态中已知的传播方法，其应用需要特别注意克服相关的病情和缺失参考敏感性问题，并且它基本上导致评估目标响应和路径参考之间的共存关系不允许在路径方面吸取因果关系。因此，使用参数模型来提出一种新方法来估计负载。这使得该方法可扩展，使工程师能够基于少量测量数据使用更简单的模型，以便通过使用更复杂的模型以及额外的测量来快速故障排除或提高精度。

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