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

Table 13

Effect of lacing wire damage induced mistuning (for λ = 0.1) 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	1.8803	1.8797	1.8789	1.8779	1.8766	1.8751
	III	1.8906	1.8891	1.8879	1.8869	1.8861	1.8855
2	I	4.6941	4.6941	4.6941	4.6941	4.6941	4.6941
	II	4.6956	4.6954	4.6952	4.6949	4.6945	4.6941
	III	4.6985	4.6981	4.6977	4.6975	4.6972	4.6970
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