商用汽车自动调整臂机械性能测试及安全评价方法研究

Automatic brake adjuster is a core part of commercial vehicle braking system. Facing the challenges of mechanical testing and safety evaluation of automatic brake adjuster, some key issues will be studied in the project. Dynamic model of automatic brake adjuster under service conditions will be established by considering response to the dynamic loading. Fatigue damage model will be examined on typical loads. the method of mechanical testing based on a simulation system will be developed. A new method of signal processing on dynamic weak signal under high noise environment will be studied. The mechanical properties and damage monitoring will be studied. The correlation of multi-sensor information is studied. A comprehensive algorithm will be proposed to fuse the information of measurement capability and operation parameters. A real-time safety assessment method of automatic brake adjuster will be accordingly established. The development of integrated approach for mechanical testing and safety warning of the automatic brake adjusters are expected to achieved which provide scientific and technical support for the mechanical testing and safety of commercial vehicle braking system.

自动调整臂是商用汽车制动系统的核心工作部件，目前在其机械性能测试和安全状态评价方法方面尚存在若干关键问题亟待解决。本项目拟通过动力学分析，研究内部零件受到不同典型加载力的响应及疲劳损伤演化问题，揭示在服役状态下自动调整臂的失效模式及性能与参数的内在联系，借助高噪环境下有效提取微弱动态信号特征值的新方法来改善基于实车制动模拟系统的自动调整臂机械性能在线测试和损伤监测方法，探索车辆运行参数、机械性能参数和测试系统测量能力指数的相关性，建立基于多信息融合的自动调整臂服役过程安全评价方法，从新的角度解决自动调整臂机械性能测试和服役安全评价的问题，研究成果在关键零部件机械性能测试及商用汽车制动系统安全运行等方面具有重要的理论与实践意义。

自动调整臂是商用汽车制动系统的核心工作部件，目前在其机械性能测试和安全状态评价方法方面尚存在若干关键问题亟待解决。本项目拟通过动力学分析，研究内部零件受到不同典型加载力的响应及疲劳损伤演化问题，揭示在服役状态下自动调整臂的失效模式及性能与参数的内在联系，借助高噪环境下有效提取微弱动态信号特征值的新方法来改善基于实车制动模拟系统的自动调整臂机械性能在线测试和损伤监测方法，探索车辆运行参数、机械性能参数和测试系统测量能力指数的相关性，建立基于多信息融合的自动调整臂服役过程的安全评价方法，从新的角度解决自动调整臂机械性能测试和服役安全评价的问题，研究成果在关键零部件机械性能测试及商用汽车制动系统安全运行等方面具有重要的理论与实践意义。