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The chain finite element calculation was performed in two steps: the static calculation
for one shackle of the chain and the dynamic calculation for the whole chain.
Figure 6.10: One shackle
Figure 6.11: Model of the shackle
Figure 6.12:Shackle deformation
Figure 6.13: Stress field[kN/cm
2
]
Table 6.1: Eigen-oscilations
Angular frequency [s
-1
]
Frequency [Hz]
Period [s]
1.
253.28
40.31
0.024807
2.
255.40
40.65
0.024602
3.
594.13
94.56
0.010575