Method for Predicting Barge Impact Force Based on Nonlinear Spring Stiffness

Table 5

Unloading stiffness.

Tonnage (t)	Velocity (m/s)	Unloading stiffness (N/m)	Tonnage (t)	Velocity (m/s)	Unloading stiffness (N/m)
1000	2	2.57 × 10^7	500	3	1.43 × 10^7
1000	3	1.04 × 10^7	1200	3	6.57 × 10^6
1000	4.5	1.36 × 10^7	Average of unloading stiffness		1.41 × 10^7