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

Table 15

Effect of lacing wire damage induced mistuning (for λ = 0.5) 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	1.9006	1.8977	1.8938	1.8888	1.8825	1.8751
	III	1.9479	1.9415	1.9359	1.9312	1.9276	1.9249
2	I	4.6941	4.6941	4.6941	4.6941	4.6941	4.6941
	II	4.7015	4.7006	4.6995	4.6980	4.6962	4.6941
	III	4.7162	4.7141	4.7123	4.7108	4.7097	4.7088
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