...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Acoustics >Effect of discretized transfer paths on abnormal vibration analysis and door structure improvement to reduce its vibration in the door slamming event
【24h】

Effect of discretized transfer paths on abnormal vibration analysis and door structure improvement to reduce its vibration in the door slamming event

机译：离散化转移路径对异常振动分析和门结构改进的影响，降低门砰泥事件的振动

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

The slamming acoustic of a vehicle door is objectively not associated to the inherent character of the automobile however it is associated to the inherent structure of the vehicle door, which is an vital subjective performance to evaluate the vehicle. Vehicle exterior noise is the air borne noise created by this structural vibration in the slamming event. This paper investigates the effect of discretized transfer paths on the abnormal vibration and adapts a modified door structure to reduce its vibration in the door slamming event based on a transfer path analysis (TPA) approach. The total number of discretized transfer paths has been chosen as 3, 5, 7, 9, and 11, i.e., this corresponds to Case 1, 2, 3, 4, and 5, respectively. Based on bench tests and lab experiments, frequency response functions (FRF) and responses of reference points and target points corresponding the aforementioned five cases are obtained. Then transient impact loads of excitation points are calculated based totally on the TPA method. Results exhibit that the model with a larger number of discretized transfer paths could provide more transfer information from the excitation source to the target and has larger root mean square errors (RMSE) between the simulation outcomes and experimental record. However, the model with a larger number of transfer paths will be time-consuming for experiments. In addition, a modified design of the glass run channel rear is implemented and the magnitude of the FRFs between the excitation point and the target has been dramatically decreased. Based on the modified design all transfer paths' contributions have been decreased. (C) 2021 Elsevier Ltd. All rights reserved.
机译：车门的撞击声客观地与汽车的固有特性有客观地与汽车的固有特性相关联，但是它与车门的固有结构相关联，这是评估车辆的重要主观性能。车辆外部噪音是通过这种结构振动在砰的事件中产生的空气噪音。本文研究了离散化转移路径对异常振动的影响，并采用改进的门结构，基于转移路径分析（TPA）方法来减少门扰动事件中的振动。所选择的离散化转移路径的总数已被选为3,5,7,9和11，即，这分别对应于案例1,2,3,4和5。基于板凳测试和实验室实验，获得频率响应函数（FRF）和参考点和目标点的响应，对应于上述五个案例。然后在TPA方法上完全基于TPA方法计算激发点的瞬态冲击载荷。结果表明，具有较大数量的离散传输路径的模型可以从激发源到目标提供更多的转移信息，并且在模拟结果和实验记录之间具有更大的根均方误差（RMSE）。然而，具有较大数量的转移路径的模型对于实验将是耗时的。另外，实现了玻璃运行通道后部的修改设计，并且激发点与目标之间的FRF的大小已经显着降低。基于修改的设计，所有转移路径的贡献都已减少。 （c）2021 elestvier有限公司保留所有权利。

著录项

  • 来源
    《Applied Acoustics》 |2021年第12期|108306.1-108306.14|共14页
  • 作者

    Liu Zhe; Gao Yunkai; Yang James; Xu Xiang; Fang Jianguang; Xu Yanan;

  • 作者单位

    Tongji Univ Sch Automot Studies Shanghai 201804 Peoples R China;

    Tongji Univ Sch Automot Studies Shanghai 201804 Peoples R China;

    Texas Tech Univ Dept Mech Engn Lubbock TX 79409 USA;

    Tongji Univ Sch Automot Studies Shanghai 201804 Peoples R China;

    Univ Technol Sydney Sch Civil & Environm Engn Sydney NSW 2007 Australia;

    Tongji Univ Sch Automot Studies Shanghai 201804 Peoples R China|Univ Sydney Sch Aerosp Mech & Mechatron Engn Sydney NSW 2006 Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Vehicle door; Door slamming event; Vibration analysis; Structural modification; Vibration reduction;

    机译：车门;门砰的事件;振动分析;结构改造;减振;

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