声学媒体

关于技术集团yb官网首页声学媒体

yb官网首页Technetics Group FeltMetal™原声媒体可以在国际空间站（ISS）的机组人员小屋中找到，在此之前，在Skylab上。我们帮助将飞机舱保持在环境控制系统（ECS）中，例如我们在波音787 Dreamliner上的应用。FeltMetal™的极端温度性能使其可以在空中客车公司和波音商用飞机辅助电源单位（APU）中运行。它是一种由烧结金属纤维制成的设计的多孔材料。纤维，孔隙度和纤维厚度的大小结合在一起，以控​​制所需的流动和声音吸收。为了增强结构特性，可以通过烧结到屏幕网格或穿孔板来加强金属纤维。

产品功能

• 高温抗性 -FeltMetal™使热气逐渐扩展，从而减少湍流和产生的噪声量
• Optimum performance- 通过声学阻抗匹配完成
• 容易清洁 -简单的清洁操作和一种高度抵抗力从众多冻结/融化周期中具有高度抗性的材料
• 极好的侵蚀性 -长期使用寿命
• Low non-linearity factors –Very effective resistance to high pressure waves/distortions
• 高频表现出色 -Able to target nuisance frequencies (e.g. buzzing, humming, honeybee sounds that emanate from drones)
• 耐腐蚀 -Resistant to aggressive cleaning agents
• 在潮湿条件下可靠的性能 -The material porosity allows the sound waves to push out any trapped liquids

Industries and Applications

• 商业和商业飞机 -APU入口/排气和ECS管道
• Human Spaceflight：空间乘员室中的声学和噪声控制
• 工业的：制造机械和重型HVAC系统

Properties and Technical Information

• 纤维尺寸
  FeltMetal™声学媒体is produced from fibers having diameters ranging from 50 to 150 microns. Finer fibers offer the advantage of lighter weight and lower non-linearity factors.

• Extreme Temperature Performance
  • 奥斯丁质不锈钢（316L型和347型），用于932˚F（500˚C）的服务温度
  • 繁殖温度至2012˚F（1100˚C）

• How FELTMETAL™声学媒体作品
  当声波从坚硬的表面反射of a silencer, constructive and destructive interference waves occur. If a porous material is placed across the wave pattern, the movement of air molecules through the material is converted to heat, resulting in a reduction in sound intensity. This reduction is highest if the material is placed at a location where the air molecule velocity is a maximum ¼ of the wavelength. The flow resistance of the porous material is critical to the efficiency of the attenuation process—if the resistance is too high, then the material acts as a hard surface and reflects the sound. But if the resistance is too low, then the sound wave travels freely through the material. In either case, the sound attenuation is less than optimal. We can help you find the optimal attenuating solution.