Marine Structural Mechanics
Marine Structural Mechanics:
This research direction mainly focuses on mechanic science and
technology involved in the process of ship design, construction, use and
maintenance so as to make sure the safety and reliability of the hull
structure and to meet the requirements of structure and marine equipment
installed on it. As the key question for future ship mechanics,
structural weight reduction of maritime ship, increase of the carrying
capacity, extension of fatigue life and effective preparedness and
control of accident damage directly enhance the vitality and economy.
ICNAME focuses on technology such as conventional wave load
calculations, sailing ship wave load calculations, water elastic load
forecasting, ultimate strength analysis, buckling reliability, ultimate
strength reliability, underwater bubble explosion dynamics, ship
structure antiknock impact, structural reduction of vibration and noise,
etc.
Achievements:
1. Key Technology of preventing hull structure from explosion and damage
Since underwater explosion imposes a damage to hull structure, it is
time we conducted related research and studies. Starting from the basic
principles of interaction among underwater explosion bubble, free
surface and nearby structures, our studies design the elasticity of
structure and simulate the important dynamical behaviors of the bubble
swelling, collapsing and forming jet flow. Our studies also reveal the
damage mechanism from the underwater explosion bubble load and verify
the correctness of the calculation methods and computational models with
existing experimental data. In a word, our studies achieve the goal of
optimizing ship design with explosion and shock resistance.
2. Wave Loads Calculation System
The forecast of ship wave loads is the most primary issue of
calculating and assessing the hull strength. After a dozen years of
research, HEU has developed the WALCS (Wave Loads Calculation System)
with Independent property rights. The software is three-dimensional
hydrodynamic software for wave loads calculation and various types of
ship motions, including multi-hull. The system is applicable to both
unlimited depth and limited depth, taking the impact of speed into
consideration. The system has reached a level of international studies.
The software, released jointly by HEU and China Classification Society,
has been included in the Statutory Audit Software Catalog of the China
Classification Society.
Future Research Directions:
(1) Development of wave load calculation software for a variety of ship type;
(2) Research on hull structural strength of extra-large ship considering the elastic effect;
(3) Research on forecasting method of icebreaking capacity and load of ship sailing in ice Region (icebreaker);
(4) Research on wave load forecast and structural response analysis technology of trimaran;
(5) Research on noise forecast and design technology of ship cabin;
(6) Research on key technology related to (GBS) standard of target ship construction;
(7) Research on dynamic response of ship structure under the influence of underwater explosion transient loads;
(8) Research on coupling between underwater explosion bubble and complex boundary;
(9) Research on coupling characteristics between ship hull structure and dynamics of the impact of large equipment;
(10) Research on ship hull vibration and acoustic radiation characteristics;
(11) Research on coupling characteristics between ship hull structure and dynamics of the impact of large equipment;
(12) Research on ship hull vibration and acoustic radiation characteristics;