Results of example show that the value of objective function decreases by 5.54%, indicating good validity of the model and the advanced RDQA for large crude oil carrier structure optimization.

• 算例显示优化后纵向构件总重量减轻了5.；54%25，表明所建的优化模型和改进的相对差商法在大型油船结构优化方面具有良好的有效性。