船体梁载荷反演方法与试验研究

Theoretical and Experimental Study on Load Inversion of Ship Hull Girder

针对实际航行过程中船体梁载荷难以直接测量的问题,提出一种弯扭分解载荷反演算法,以弯扭耦合载荷作用下的结构响应为输入,分离并输出结构所承受的弯矩和扭矩,并通过船体梁弯扭分解试验对该算法的可行性进行验证。船体梁载荷反演结果表明,提出的弯扭分解算法能将船舶航行过程中耦合在一起的载荷进行有效的分解测量,具有工程可行性。

Aiming at the difficulty for the direct measurement of the hull girder loads in the actual navigation process,a load inversion algorithm based on bending torsion decomposition is proposed.Taking the structural response under the bending torsion coupling loads as the input,the bending moment and torque borne by the structure are separated and output.The feasibility of the algorithm is verified by the model test of the bending torsion decomposition of the hull girder.The load inversion results of the hull girder show that the coupled loads can be effectively decomposed and measured during ship navigation by the proposed bending torsion decomposition algorithm and the algorithm has the engineering feasibility.