Adjustment structure and method for inherent frequencies of blades of overall blade disk of turbine
An integral blisk and natural frequency technology, applied in the direction of blade support components, engine components, machines/engines, etc., can solve problems affecting aerodynamic performance, small range, long design and processing cycle, etc., to achieve easy control of dimensional accuracy, process The effect of good performance and practical value of large projects
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[0018] The present invention will be further described in detail below through specific embodiments:
[0019] See also figure 1 , figure 2 with image 3 ,among them, figure 1 It is a schematic diagram of the natural frequency adjustment structure of the integrated turbine blisk blade of the present invention. figure 2 Yes figure 1 Schematic diagram of A direction, image 3 Yes figure 2 Section B-B. There is a slit 3 of a certain width between each blade of the integrated turbine blisk 1 of the present invention. The slit forms a certain angle α with the axis of the engine. The radial depth of the slit is determined by the frequency value that needs to be adjusted. The width is 0.2~0.4, and the depth is 3~7mm from the rim. The greater the frequency of adjustment, the greater the depth value. The included angle range can better contain the root leaf shape. The end of each slit is processed with an anti-cracking hole 4. The crack arrest hole is circular with a diameter of 3 ...
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