基于数字孪生的火箭测试与发射过程健康管理技术研究

A rocket health management system for vehicle testing and launching base on Digital Twin

摘要:

为了解决运载火箭对地面测试与发射过程中对数据综合分析能力,飞行过程的故障诊断和预测能力,以及故障处理措施的快速决策等能力的迫切需求,提出一种基于数字孪生技术的火箭测试与发射过程健康管理系统设计方案。该方案通过建立运载火箭测试与发射阶段数字孪生模型,实现对火箭测试和发射过程的天地镜像仿真，依托数字孪生模型，对运载火箭健康管理功能进行了设计和优化。利用真实火箭和数字孪生火箭的信息交互,可有效实现火箭测试过程数据分析、飞行过程协同诊断,以及故障处理决策支持等功能。该系统提高了火箭发射的可靠性,为火箭可靠飞行提供了技术保障。同时，该技术在运载火箭健康管理上的应用也面临一些关键技术还需要进一步突破和发展。

Abstract:

To solve the capability requirement for integrated analysis methods during vehicle testing on the ground, fault diagnosis and prediction for the flight process, and decision-making methods of fault treatment, a rocket health management system for vehicle testing and launching base on digital twin is proposed in this paper. In this scheme, a digital simulation and multisource model is build for vehicle testing and launching, and the model can optimize the health management function. By using the information interaction between real rocket and digital twin rocket, the real-time information of the rocket is collected by the data acquisition module of the system, and the evolution of the digital twin of the rocket launch scenes are also accomplished by this module. With the digital twin technology, the data analysis for testing, collaborative diagnosis and decision-making for flight can be improved. This system can improve the reliability of rocket launch, and support the rocket launch mission success. Meanwhile, some key technologies need further breakthrough and development in the future.