【摘 要】
：
In this paper, the buoyancy, kinetic properties and stability of air floated structures have been studied by theoreticaland experimental methods. The equations
【机 构】
：
Department of Port and Coastal Engineering,Navy Logistic Acadeemy
论文部分内容阅读
In this paper, the buoyancy, kinetic properties and stability of air floated structures have been studied by theoreticaland experimental methods. The equations for calculation of the buoyancy of the air floated buoy are derived according tothe Boyler law and the equilibrium equations of the air floated structure are established. Through simplification of the airfloated structure as a single freedom rigid body and spring system, the natural period of heaving and some kinetic proper-ties are discussed. In the stability analysis, the formulas for calculation of the meta centric height are presented. The the-oretical results are in good agreement with the data observed from the model test and prototype test. The air buoyancy de-crease coefficient presented in this paper has a large influence on the floating state, stability and dynamic properties of theair floated structure. The stability of the air floated structure can also be judged by the parameter of meta centric height,and calculations show that the air floated structure is less stable than the conventional float.
其他文献
A europium-lanthanum hetero-nuclear complex with new ligand N, N′-dimethyl-N, N′-diphenyladipamide (MPAA) was prepared. The one dimensional chain structure of
The performance of supercritical fluid (SCF) as a solvent can be greatly affected by addition of anentrainer to the system. In this study, a constant volume vis
Computer-aided experimental technique was used to study the Stokes deconvolution of X-ray diffraction profile.Considerable difference can be found between the F
The bonding and electronic structure of Cu/(0001)Al2O3 and Cu/(1120)Al2O3 interfaces has been studied experimentally using spatially-resolved transmission elect
Disposal of chromium(Cr)hexavaient form,Cr(Ⅵ),in soils as additions in organic fertilizers,liming materials or plant nutrient sources can be dangerous since Cr
Ni-La alloy coating was prepared by electrodeposition.The effect of cathodic current density on the La content of the alloy coatings was discussed.It is found t
Single crystal of YbxY1-xAl3(BO3)4 (Yb∶YAB) was grown by using flux method based on the potassium trimolybdate. 160 mW efficient continuous-wave green output w
CeO2-promoted Ni/Al2O3-ZrO2 (Ni/Al2O3-ZrO2-CeO2) catalysts were prepared by a direct sol-gel process with citric acid as gelling agent.The catalysts used for th
An effective analytical approach is developed for the problem of particulate composites containing spherical inclusion with imperfect interface between the matr
This review article summarizes the advances in the surface stress effect in mechanics of nanostructured elements,including nanoparticles,nanowires,nanobeams,and