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

Table 4

Effect of mistuning due to lacing wire damage (for = 0.25) on natural frequencies.

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	1.9790	1.9678	1.9526	1.9323	1.9065	1.8751
	III	2.1448	2.1239	2.1052	2.0895	2.0771	2.0675
2	I	4.6941	4.6941	4.6941	4.6941	4.6941	4.6941
	II	4.7014	4.7005	4.6994	4.6979	4.6962	4.6941
	III	4.7160	4.7139	4.7121	4.7107	4.7095	4.7087
3	I	7.8548	7.8548	7.8548	7.8548	7.8548	7.8548
	II	7.8563	7.8561	7.8559	7.8556	7.8552	7.8548
	III	7.8594	7.8590	7.8586	7.8583	7.8580	7.8579