首页> 外文会议>2002 international conference on noise and vibration engineering (ISMA2002) >Maximum Likelihood Identification of Vibro-Acoustic Modes Using Output-Only Measurements
【24h】

Maximum Likelihood Identification of Vibro-Acoustic Modes Using Output-Only Measurements

机译:使用仅输出的测量来最大程度地确定振动声模

获取原文
获取原文并翻译 | 示例

摘要

Recently, maximum likelihood system identification techniques have been proposed to derive the vibrationalrnmodes of structures using only output measurements. In the present contribution, the use of output-only maximumrnlikelihood system identification techniques will be considered for vibro-acoustic systems. Classicalrnvibro-acoustic modal parameter estimation procedures start from input/output measurements. In order to sufficientlyrnexcite both structural and acoustical modes, force exciters as well as acoustical sources have to be used.rnMeasuring the applied forces is usually not a problem in laboratory conditions. On the other hand, an accuraternquantification of the acoustic excitations is difficult. In this paper, the pros and contras of an ”output-only”rnvibro-acoustic modelling approach will be investigated and illustrated by means of real measurement results.
机译:最近,已经提出了最大似然系统识别技术来仅使用输出测量值来推导结构的振动模式。在目前的贡献中,将考虑将仅输出最大似然系统识别技术用于振动声系统。经典振动声学模态参数估计程序从输入/输出测量开始。为了充分激发结构和声学模式,必须使用力激励器和声源。在实验室条件下,测量施加的力通常不是问题。另一方面,精确地量化声激发是困难的。在本文中,将通过实际的测量结果来研究和说明“仅输出”振动声建模方法的优缺点。

著录项

  • 来源
  • 会议地点 Leuven(BE);Leuven(BE)
  • 作者单位

    Acoustics and Vibration Research GroupDepartment of Mechanical Engineering (WERK)Vrije Universiteit Brussel (VUB)Pleinlaan 2, B-1050, Brussels, Belgiume-mail: gdesitte@vub.ac.be;

    Acoustics and Vibration Research GroupDepartment of Mechanical Engineering (WERK)Vrije Universiteit Brussel (VUB)Pleinlaan 2, B-1050, Brussels, Belgium;

    Acoustics and Vibration Research GroupDepartment of Mechanical Engineering (WERK)Vrije Universiteit Brussel (VUB)Pleinlaan 2, B-1050, Brussels, Belgium;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 振动、噪声及其控制;
  • 关键词

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