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

Table 14

Effect of lacing wire damage induced mistuning (for λ = 0.25) 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	1.8880	1.8866	1.8846	1.8820	1.8788	1.8751
	III	1.9129	1.9095	1.9065	1.9040	1.9021	1.9006
2	I	4.6941	4.6941	4.6941	4.6941	4.6941	4.6941
	II	4.6978	4.6974	4.6968	4.6960	4.6951	4.6941
	III	4.7052	4.7041	4.7032	4.7025	4.7019	4.7015
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