Numerical results of the section property parameters obtained by using these methods for a standard ship section are analyzed, it shows that the traditional equivalent method of simplifying the areas of the longitudinal to the thickness of the plating is applicable to the bending-torsional strength assessment for the ships with large-deck-opening.

For the bigger measurement error of bending shear stress in the cylinder test under bending and torsion,the arrangement of electrical resistance rosette strain gauge on the experiment facility is adjusted.

In this paper, the measurement error is discussed from three above factors when the whole bridge is applied to measure the bending shear strain in the cylinder under bending and torsion.

The bending rigidity and the bending and reversing strength of the driving shaft of the one grade straight and Cylinder form garewheel decelerator are different when the direction of the pulling power from the V form ribbon to the driving shaft changes in the drive device of ribbon type conveying machine.

The research on wave-induced load,global bending-torsional strength,and fatigue strength of hatch-corners of an 8 530 TEU containership is carried out,for the ship length and the hatch width are larger than those of containerships built in China.