2005-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/697267摘要：本計畫旨在探討蜂巢式三明治板之隔音性能，期望能經由對此類型材料聲學性質之瞭解，而對船舶噪音問題之改善有所幫助。有關複合材料的探討大多著重於強度之研究，對聲學性質之理論探討反而不多。在本計畫中擬將蜂巢式結構(honeycomb)視為多孔材進行分析，而面材部分則以彈性固體處理。計畫中將進行等向性面材與蜂巢式結構組合時之隔音性能分析，另外也將建立駐波管式之隔音量測系統，以作為理論分析之驗證依據，同時也將進行不同蜂巢式三明治板之隔音能力分析，並以實驗相互驗證。最終則希望能尋求一種輕量且高隔音材料之組合方式或方法。<br> Abstract: The purpose of this project is to investigate the sound insulation characteristics of honeycomb sandwich panels. We hope that through the understanding of the acoustic properties of such panels will be helpful to the ship building industry in improving cabin noise problem. From the document survey, it is known that the studies on the composite laminated materials were focused on the strength analysis and only very little researches discussed the acoustic properties. Owing to the light weight and high strength, the composite laminated material combined with the honeycomb sandwich panels are analyzed in this study. The theory for a porous elastic material is adopted to analyze the sound waves propagated in the honeycomb structure. In thus study an isotropic face panel combined with honeycomb structure is discussed. Further, the experimental setup is established to verify the theoretical results. Hoping that a method (or a type of combination) to formed materials with better sound insulation and light weight properties can be proposed.蜂巢板隔音噪音honeycombsound insulationnoise