数字孪生体技术在船舶轴系试验台架中的应用研究

Research on application of digital twin technology in ship shafting test bench

轴系试验台架是研究船舶轴系的主要方式之一,对研究船舶轴系的动力特征以及故障机理起着重要的作用。但由于客观条件的限制,目前轴系试验平台在进行故障诊断、状态识别中对于判据知识的获取还存在一定的问题。数字孪生作为实现物理空间在虚拟空间的双向映射的手段,其在船舶行业中的应用较少,文章基于数字孪生的思想,研究数字孪生在轴系试验平台的应用,从对象选取、模型构建、数据库设计等方面,提出构建轴系试验平台数字孪生体的方法,并通过真实试验,验证所构建的数字孪生体。

The shafting test bench is one of the main ways to study the ship's shafting,and it plays an important role in the study of the dynamic characteristics and failure mechanism of the ship's shafting.However,due to the limitation of objective conditions,the current shafting test platform still has certain problems in obtaining the criterion knowledge in the fault diagnosis and state recognition.As a means of realizing the bidirectional mapping of physical space in virtual space,digital twins are rarely used in the shipbuilding industry.Based on the idea of digital twins,the article studies the application of digital twins in shafting test platforms.From object selection,model construction,database design and other aspects,a method of constructing a digital twin of the shafting test platform is proposed,and the constructed digital twin is verified through real experiments.