直升机攸关动部件损伤预测及其性能测度评估研究

项目名称： 直升机攸关动部件损伤预测及其性能测度评估研究

项目编号： No.51475463

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 胡茑庆

作者单位： 中国人民解放军国防科技大学

项目金额： 83万元

中文摘要： 直升机是低空飞行器族中与国家安全需求、国民经济发展密切相关的装备，必将在军民兼用领域大量应用。直升机因其单通道动力传动结构与多变的服役环境，其中的动部件（动力传动和旋翼等）诱发的损伤、演化甚或快速恶化会引起任务中断甚至灾难性后果。动部件健康状态的监测、诊断与预测是直升机安全可靠飞行的重要技术保障。本项目拟在动部件监测与诊断技术积累的基础上，聚焦于研究动部件故障预测以及预测性能评估的理论与方法，创新性地以非线性动力学系统理论为工具研究适合于动部件多变工况条件下的损伤演化模型、退化状态识别与剩余寿命预测方法，进而研究数据驱动类预测方法混合的预测模型与算法。以此为基础，进一步研究预测算法的性能评估测度集及评估方法，构建动部件损伤实时预测和综合分析预测的模型库以及测度评估体系，为动部件损伤预测方法的熟化与集成应用提供验证与确认的技术途径，为直升机维护保障体系提供可信的预测模型与算法的技术支持。

中文关键词： 健康监测；故障预测；寿命预测；健康评估；智能维护

英文摘要： Helicopter (or rotorcraft)is one class of low-space vehicles, which serves as an essential part of equipment for requirement of national safety and economic development, must be used widely in army-civilian applications. Owing to the power transmission system of helicopter with single critical load paths without duplication or redundancy, the evolution and fast degradation of damage of dynamic mechanical components would cause mission interruption or even accidents.As such, dynamic mechanical component monitoring, diagnosis and prognosis is important to helicopter safety and reliability. Based on monitoring and diagnosis technique accumulation of dynamic mechanical components, this proposal focuses on novel theory and method about damage evolution prognosis,failure prognsis and performance evaluation of prognostic techniques for dynamic mechanical components. The main contents include: (1)studying damage evolution model, degradation identification method and remaining useful life prediction method under multiple variational working conditions of dynamic mechanical components by using a nonlinear dynamical systems approach. (2)studying hybrid combined prognostic models and algorithms based on data-driven prognostic methods. (3)studying metric set for evaluating performance of prognostic techniques and corresponding evaluation approach, then establishing a common ground to compare different developed prognostic techniques, so as to provide verification and validation approach for maturation and integrated application of prognostic techniques in any rotorcraft health management system. The above research work and related research production will provide credible prognostic models and algorithms for helicopter technical support and integrated logistics.

英文关键词： Health Monitoring;Fault Prognosis;Life Prognosis;Health Assessment;Intelligent Maintenance