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

Table 16

Effect of lacing wire damage induced mistuning (for λ = 1) on natural frequencies (lacing wire at mid span).

Mode	Submode	values
		= 0	= 0.2	= 0.4	= 0.6	= 0.8	= 1.0
1	I	1.8751	1.8751	1.8751	1.8751	1.8751	1.8751
	II	1.9249	1.9193	1.9118	1.9020	1.8898	1.8751
	III	2.0109	1.9996	1.9896	1.9813	1.9748	1.9698
2	I	4.6941	4.6941	4.6941	4.6941	4.6941	4.6941
	II	4.7019	4.7071	4.7048	4.7019	4.6983	4.6941
	III	4.7275	4.7340	4.7304	4.7275	4.7252	4.7235
3	I	7.8548	7.8548	7.8548	7.8548	7.8548	7.8548
	II	7.8548	7.8548	7.8548	7.8548	7.8548	7.8548
	III	7.8548	7.8548	7.8548	7.8548	7.8548	7.8548