...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Sound and Vibration >Treating periodic ribbed plates with symmetric ribs as individual subsystems in Statistical Energy Analysis: Models for bending wave transmission across L-junctions in the low- and mid-frequency ranges
【24h】

Treating periodic ribbed plates with symmetric ribs as individual subsystems in Statistical Energy Analysis: Models for bending wave transmission across L-junctions in the low- and mid-frequency ranges

机译：在统计能量分析中，将具有对称肋骨的周期性肋骨板作为单独的子系统：低频和中频范围内L形结两端的弯曲波传输模型

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 inclusion of rib-stiffened plates within the framework of Statistical Energy Analysis (SEA) is a challenge in the field of engineering noise control for the low- and mid frequency ranges. This paper focuses on periodic ribbed plates with symmetric ribs and assesses different approaches using SEA to model bending wave transmission when one or both of the rectangular plates that form an L-junction are a periodic ribbed plate. SEA is compared with measurements and Finite Element Methods (FEM) with all plate boundaries pinned to give boundary conditions that are representative of engineering structures typically used for noise control. When one or both plates are ribbed, and the ribs are parallel to the junction, the closest agreement between measurements and FEM is with SEA models that use a combination of Bloch theory and wave theory to determine the coupling loss factors. However, when both plates are ribbed plates, one with ribs orientated perpendicular to the junction and the other with ribs parallel to the junction, the available SEA models which assume an effective isotropic plate, or an equivalent isotropic plate or angle dependent bending stiffness all underestimate the energy level difference. (C) 2015 Elsevier Ltd. All rights reserved.
机译：在统计能量分析（SEA）框架内包括肋骨加筋板是中低频范围工程噪声控制领域的一个挑战。本文着重于具有对称肋的周期性肋板，并评估当形成L型结的一个或两个矩形板为周期性肋板时，使用SEA建模弯曲波传输的不同方法。将SEA与测量和有限元方法（FEM）进行比较，并固定所有板边界，以给出代表通常用于噪声控制的工程结构的边界条件。当一个或两个板都加肋并且肋平行于连接处时，测量和有限元法之间最接近的协议是SEA模型，该模型使用Bloch理论和波动理论的组合来确定耦合损耗因子。但是，当两个板都是肋板时，一个肋的肋骨垂直于交界处，另一个肋的肋骨平行于交界处，则可用的SEA模型会假设一个有效的各向同性板，或等效的各向同性板或与角度相关的抗弯刚度，都被低估了。能量水平差。 （C）2015 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 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