铁道车辆的高速化发展,对车内环境舒适度提出了更高的要求。由于铁道车辆噪声源众多,且传播路线错综复杂,必须考虑客室及内装修因振动逐步改变的特殊情形。因此,日本铁道综合技术研究所提出了通过将新开发的采用压电材料降低噪声的板体安装在内装修板材上以降低内装修板体透射噪声的方案,希望以此抑制来自外端墙面的透射 The rapid development of railway vehicles has put forward higher requirements on the comfort of the vehicle environment. Due to the large number of noise sources and the intricate propagation routes of railway vehicles, the special circumstances of passenger rooms and interior decoration due to gradual vibration changes must be considered. Therefore, the Japan Railway Institute of integrated technology proposed by the newly developed piezoelectric materials used to reduce the noise board installed in the interior decoration board to reduce the interior decoration panel transmission noise, hoping to suppress from the outer wall Transmission