| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vane frame for a turbomachine and a method for minimizing the weight of the vane frame while keeping structural strength at a suitable level. <P>SOLUTION: The vane frame includes: an inner shroud 42 made up of a plurality of inner shroud segments 42A, 42B; an outer shroud 44 circumscribing the inner shroud and made up of a plurality of outer shroud segments 44A, 44B; and guide vanes 28 structurally interconnecting the inner and outer shrouds. The guide vanes include: a plurality of first guide vanes 28A between and connecting first pairs 42A, 44A of the inner and outer shroud segments; and a plurality of second guide vanes 28B between and connecting second pairs 42B, 44B of the inner and outer shroud segments. The first and second guide vanes are formed of different first and second materials, respectively, with the first material having lower strength, modulus, and/or density than the second material. The structural interconnection between the inner and outer shrouds is dominated by the second guide vanes 28B. <P>COPYRIGHT: (C)2010,JPO&INPIT |
