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    • 5. 发明授权
    • Acoustic projector having minimized mechanical stresses
    • 声学投影机具有最小的机械应力
    • US07894307B2
    • 2011-02-22
    • US12561633
    • 2009-09-17
    • Jason W. OsbornMatthew M. DeAngelis
    • Jason W. OsbornMatthew M. DeAngelis
    • H04R17/00
    • B06B1/0655
    • An acoustic projector which includes an outer shell formed of a reinforced epoxy resin having a longitudinal slot has an inner reinforcing liner formed of metal to reduce mechanical stress. The liner extends throughout the length of the outer shell and has a longitudinal slot aligned with the slot formed in the shell. An arcuate shaped driver is mounted along a portion of the I.D. of the metal liner and separated therefrom by insulation. In an alternate embodiment, the outer shell is formed of a plurality of overlapping layers of epoxy/graphite strips extending at various angles to increase the Z-axis stiffness.
    • 包括由具有纵向狭缝的增强环氧树脂形成的外壳的声学投影仪具有由金属形成的内部增强衬垫以减小机械应力。 衬套延伸穿过外壳的整个长度,并且具有与形成在外壳中的槽对准的纵向槽。 弧形驱动器沿着I.D.的一部分安装。 的金属衬里并通过绝缘分离。 在替代实施例中,外壳由多个以各种角度延伸的环氧树脂/石墨条的重叠层形成以增加Z轴刚度。
    • 7. 发明授权
    • Openwork shell projector
    • 镂空外壳投影机
    • US06956792B1
    • 2005-10-18
    • US10085794
    • 2002-02-28
    • Jason W. OsbornCharles P. Wason, Jr.William S. McNary
    • Jason W. OsbornCharles P. Wason, Jr.William S. McNary
    • B06B1/06G10K9/12H04R1/44
    • B06B1/0633G10K9/121
    • A honeycomb-like shell is provided for an acoustic projector used in sonar applications to increase the bandwidth of the projector, reduce its weight, and to provide increased power density and reduced shell costs. The shell has outer and inner layers, with the honeycomb structure therebetween. The honeycomb shells have application in slotted cylindrical projectors, flextensional projectors, inverse flex tensional projectors, and oval-shaped projectors in which the honeycomb structure replaces the solid shells, with the honeycomb providing the relatively high specific stiffness required for the acoustic properties of the projector. The honeycomb shell achieves the same bending stiffness of the solid shells with less weight through the utilization of radial stiffeners between the inner and outer layers. The use of the honeycomb structure increases bandwidth by over 30%, and reduces total weight by 22%, shell weight by 65% and shell cost by 50%, making the honeycomb shell ideal for low frequency sonar applications.
    • 提供了一种蜂窝状壳体,用于声纳应用中使用的声学投影仪,以增加投影机的带宽,减轻其重量,并提供更高的功率密度和降低的壳体成本。 壳体具有外层和内层,其间具有蜂窝结构。 蜂窝壳应用于开槽圆柱投影机,弯曲投影仪,反曲面张力投影仪和椭圆形投影机,其中蜂窝结构代替固体壳,蜂窝体提供投影仪的声学特性所需的相对较高的比刚度 。 通过利用内层和外层之间的径向加强筋,蜂窝壳体以较小的重量实现了相同的固体壳的弯曲刚度。 蜂窝结构的使用使带宽增加了30%以上,总重量减少了22%,壳重量减少了65%,壳体成本降低了50%,使蜂窝壳体成为低频声纳应用的理想选择。