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مکانیک::
مجموعه دیسک پره دار
Figure 8.2 shows bladed disk assemblies for a steam turbine rotor, and Fig. 8.3 provides examples of new steam turbine buckets.
Low-cycle fatigue has been a primary design consideration for bladed disk assemblies, and this has succeeded in controlling LCF-related failures to a considerable extent.
For each mode i and nodal diameter n (n 0 to N/2), two identical eigen frequencies are computed, which refer to two possible mode shapes of the bladed disk assembly.
help of these numerical tools the bladed disk assembly may be analyzed for any operating condition.
Nodal diameters for the bladed disk assembly are shown in Fig. 8.11.
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