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    • 1. 发明申请
    • Platform mounted components
    • 平台安装组件
    • US20060127217A1
    • 2006-06-15
    • US11282602
    • 2005-11-21
    • Alison McMillanStephen Booth
    • Alison McMillanStephen Booth
    • F04D29/44
    • F01D5/147B29C66/43441B29C66/721B29K2105/06B29L2031/08B29L2031/082F01D5/282F04D29/023F04D29/324F05D2240/80F05D2300/518F05D2300/6034Y02T50/672Y02T50/673Y10T29/49325Y10T29/49337
    • A platform arrangement for components such as aerofoil vanes 1, 21 is provided whereby the necessary rigidity provided by the platform does not create excess problems with respect to stress and strain fatigue failure at thinner sections of the component. The leading edge 6, 26 and trailing edge 7, 27 of a vane generally have a thinner section and so when subject to greater flex deformation such flex deformation may lead to premature failure through stress and strain. Structural configurations are now provided which comprise cut out windows 24 in the platform 22 beneath the edges 26, 27 or alternatively differential material types at these locations with a less stiff nature. Generally, a backing member 25 is provided below an integral platform layer 22 to create generally greater stiffness in the platform unit formed by the combination but in accordance with the present invention this backing member 25 may include the cut out windows 24 or have the necessary differential material types for variable flexibility compliance at portions of reduced component cross-section.
    • 提供了诸如机翼叶片1,21的部件的平台装置,由此由平台提供的必要刚性在部件的较薄部分处不会产生应力和应变疲劳失效的过多问题。 叶片的前缘6,26和后缘7,27通常具有较薄的部分,因此当经受更大的挠曲变形时,这种弯曲变形可能导致通过应力和应变的过早失效。 现在提供结构构造,其包括在边缘26,27下方的平台22中的切割窗24,或者在这些位置处具有较低刚性的差异材料类型。 通常,背衬构件25设置在整体平台层22下方,以在由组合形成的平台单元中产生通常更大的刚度,但是根据本发明,该背衬构件25可包括切出窗口24或具有必要的差别 在减少的部件横截面的部分可变柔性柔度的材料类型。