Science and Technology of Nuclear Installations / 2008 / Article / Tab 2

Review Article

Dynamic Analysis of Coolant Channel and Its Internals of Indian 540 MWe PHWR Reactor

Table 2

Natural frequencies of coolant channel for fault scenarios.

CaseFrequency (Hz)
1st mode2nd mode3rd mode

Case 1 (design)6.4517.6232.66
Case 26.4217.0530.05
Case 36.3616.6427.12
Case 46.4117.5925.65
Case 56.2515.6927.11
Case 64.9913.5527.30
Case 75.5216.6725.82
Case 84.0217.5331.92
Case 92.6913.7722.73
Case 102.6613.5526.43
Case 116.2616.1526.74
Case 126.4117.5929.71

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