On USA-17, the middle hull serves as a beam to counteract those forces.
在美国- 17号上,中船体充当抵消这个作用力的梁。
2
For a naval ship with a long strength superstructure and a lot of hatch, it is difficult to evaluate the hull girder's strength by general beam theory because of the complexity of the hull structure.
Authors suggest a practical method based on dynamic analysis of finite element for modifying natural frequencies of hull grillage beam, and its software is completed.