Laminated passenger window with a vacuum layer for reduced noise transmission

摘要: An aircraft window configuration utilizes a laminate build-up of the primary pane to increase damping and reduce structural response turbulent boundary layer outside aircraft. The may consist several acrylic layers or combination glass layers. Noise dampening results from introduction transparent visco-elastic material urethane. A vacuum be introduced between middle, fail-safe pane. decouples panes over broad frequency range resulting in lower inner that radiates noise into passenger cabin. Such reduces weight improves performance. damped also deflections air stream aerodynamic performance