| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a steam turbine and a stationary vane of the steam turbine which reliably suppress self-excited vibration generated in the stationary vane.SOLUTION: The invention includes vane members 17, 18 that have a space 14 formed therein, and a plate spring member 19 that is disposed inside the space 14 of the vane members 17, 18 and in elastica contact with inner surfaces 21, 22 of the vane members 17, 18. The plate spring member 19 includes a positioning portion 27, an elastic contact portion 28, and a connection portion 29. The elastic contact portion 28 is divided into plural portions in the length direction of the vane members 17, 18. As a result, in the invention, the elastic contact portion 28 comes into elastic contact with the inner surfaces 21, 22 of the vane members 17, 18 without any partial contact throughout the entire surface thereof. Accordingly, the elastic contact area between the elastic contact portion 28 and the inner surfaces 21, 22 of the vane members 17, 18 is widened, so that self-excited vibration generated in a stationary vane may be reliably suppressed.</p> |
