基于PULSE测试系统的NVH测试与分析方法

摘要

The aero engine is a complicated aerodynamic and thermodynamic system with strong non-linearity.In order to carry on effective control and fault diagnosis,study its operating characteristics, a mathematical model for aero engine must be builtA state variable model near some static state point of aero engine has been established based on the algorithm of generating the data into object equation with the engine test dataAfter verifying the model, it shows the model has a great precision and better robustness, which may accurately reflect the real-time aero engine performance,so it meets the demands of follow-up control system's design and research.%NVH分析在载运工具领域特别是汽车领域一直是一个重要的研究课题,而且随着人们对载运工具乘坐舒适性的要求的提高,NVH分析越来越受到整车企业及其零部件企业的关注.基于高精度的信号采集设备和传感器来进行试验测试一直是进行NVH分析的有效方法,基于丹麦某公司PULSE测试系统、传感器及其软件平台,通过实际工程问题为例,系统讲述了NVH试验测试与分析方法和具体步骤,对从事相关研究的工程设计人员特别是经验不够丰富的设计人员有广泛的参考价值.