免费人成视频19674不收费

    <tbody id="ofkqm"><pre id="ofkqm"></pre></tbody>

    1. <dd id="ofkqm"><noscript id="ofkqm"></noscript></dd>

        1. <dd id="ofkqm"><noscript id="ofkqm"><video id="ofkqm"></video></noscript></dd>
        2. Home > Maintenance Area > TURBINE
          After the steam turbine rotor blades fatigue fracture caused by vibration, how to judge the direction of vibration?

          The blade fatigue cracks caused by vibration, in general, the distribution of crack direction perpendicular to the vibration direction of the blade. If blade fracture occurs because of vibration, the fatigue crack axial distribution. If the axial vibration broken, the fatigue crack tangential distribution.

          Favourite