Texas Section January Meeting
By Christina Wang
Dr. Magnuson (right) addressing the Texas Section
On Jan. 9, 2007,
Texas Section held its January luncheon seminar with the presentation of “A
Reanalysis of Barge Roll Motion Data” by Dr. Allen H. Magnuson, Naval Architect
of J.F. Moore International. Dr. Magnuson addressed that accurate prediction of
roll motions for heavy-lift barges and ships, launch barges, deck barges and
the like are essential to assure the safety of the vessel and cargo in transit.
He pointed out that existing ship motions programs are generally known to
over-predict roll motion of loaded barge hullforms due to under-prediction of
roll damping. In addition existing programs do not appear to have been
validated for loaded barge hullforms with their high CGs and large roll radii
of gyration. Therefore, the purposes of
his investigation were: (1) to illustrate the unique relationships between
barge roll motions and barge design and loading parameters, and (2) to present
model test data on barge roll motions for use in validating in-house motions
programs. Nearly 40 people attended the seminar.
Texas Section Chair, Donald Burris (left), presenting Dr.
Magnuson with a token of appreciation.