Research Article

Analytical and Numerical Investigation of Lacing Wire Damage Induced Mistuning in Turbine Blade Packet

Table 6

Effect of mistuning due to lacing wire damage (for = 1) on natural frequencies.

ModeSubmode values
= 0 = 0.2 = 0.4 = 0.6 = 0.8 = 1.0

1I1.87511.87511.87511.87511.87511.8751
II2.21352.18242.13842.07681.99171.8751
III2.59322.55142.51292.47972.45262.4314

2I4.69414.69414.69414.69414.69414.6941
II4.72344.72004.71544.70954.70234.6941
III4.78364.77494.76754.76154.75684.7533

3I7.85487.85487.85487.85487.85487.8548
II7.86107.86037.85937.85807.85657.8548
III7.87357.87187.87027.86897.86807.8548