声学超材料减振降噪技术在载人航天工程中的应用研究

Research on the Vibration and Noise Reduction Based on the Acoustic Metamaterials in the Manned Space Project

为解决传统减振降噪材料对飞行器在轨运行段低频段的噪声和振动控制效果不佳问题,研发突破传统材料属性限制的新材料,使声学超材料具有轻质、隔声、减振、负折射率等特性。综述了近年来声学超材料研究进展,分析了基于声学超材的减振降噪技术的理论基础、研究内容和实际应用,为声学超材料在载人航天工程领域中的减振降噪应用提供参考。

In order to solve the problems of the insufficient control of traditional vibration and noise reduction in aircraft noise and vibration control in low-frequency stage,the study researches the new materials which is not limited by traditional materials,to make acoustic metamaterials be qualified with light,sound insulation,vibration attenuation and negative refractive index,etc.The study summarizes the research progress of acoustic metamaterials;analyzes the theoretical basis,research content and practical application of vibration and noise reduction based on acoustic metamaterials to provide reference for the application of acoustic metamaterials in manned space project.