• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the Chinese Society of Mechanical Engineers, Series C: Transactions of the Chinese Society of Mechanical Engineers >Active Control of Sound Radiation from Vibrating Structure with Time Domain Acoustic Radiation Modes
【24h】

Active Control of Sound Radiation from Vibrating Structure with Time Domain Acoustic Radiation Modes

机译：时域声辐射模式的振动结构声辐射主动控制

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

In time-domain, a new formulation is developed for calculating the acoustic radiation modes. These time domain radiation modes, whose shapes are only dependent on the geometry size and shape of the radiator, but not on the time and its material properties, can be used to arrive at efficient weighting schemes in order to reduce the controller dimensionality. Especially, the first radiation mode accounts for the most of sound radiation, which leads to the development of a new control strategy in time-domain in which by canceling the first radiation mode amplitude, the sound power radiated from the first radiation mode is zero theoretically and the total sound power would decrease effectively, Finally, an adaptive feedback control system based on filtered x-LMS algorithm is designed to control the first mode amplitude. The control effects of the proposed method on the suppression of sound radiation are discussed.
机译：在时域，开发了一种新的公式来计算声辐射模式。这些时域辐射模式的形状仅取决于辐射器的几何尺寸和形状，而与时间及其材料特性无关，可以用于获得有效的加权方案，以减小控制器的尺寸。特别地，第一辐射模式占声音辐射的大部分，这导致了时域新控制策略的发展，在该策略中，通过抵消第一辐射模式幅度，从第一辐射模式辐射的声功率理论上为零。最后，设计了基于滤波x-LMS算法的自适应反馈控制系统，以控制第一模态振幅。讨论了该方法对抑制声辐射的控制效果。

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