Een berekeningsmodel voor zwenkwerken van zware offshorekranen.
Report TT.1061, Transport Engineering.
A computer program has been designed to simulate displacements and dynamic
influences on a vessel mounted crane as a result of ship motions and the
slewing operation. Determination of ship motions was established with
use of Response Amplitude Operators.
The results under dynamic conditions have shown that a coincidency of period
times of ship motions and load movements may lead to extremely high values of
local displacements. More experience shows that high values of load
displacements and speeds are suppressed by tugger wires. Suspicion rises
whether the constant tension behaviour of the tugger winches is valid under
Recommended is therefore an experimental determination of tensions in tugger
wires as a result of load displacements and speeds. Also ship motions will
have to be determined to be able to verify the simulation program.
Simulation of the slewing operation under non-dynamic conditions has shown
results in accordancy with experience.
Reports on Transport Engineering and Logistics (in Dutch)
, TU Delft