论文标题
振动转移路径分析和NVH优化的路径排名
Vibration transfer path analysis and path ranking for NVH optimization of a vehicle interior
论文作者
论文摘要
通过车辆制造业的新进步；对车辆质量保证的评估有一个更关键的问题。如今，车辆内部和外部产生的噪音和振动比以前更重要的因素。到目前为止，一些研究人员专注于内部噪声传输路径分析，结果已在相关论文中发表，但每种方法都有其自身的局限性。在目前的工作中，已经执行了CAR内部的振动转移路径分析和振动路径排名。由于内部振动是结构性传播噪声问题的来源，因此该研究的结果可用于呈现车辆中的结构性噪声状态。本文提出的方法与早期方法相反，不需要拆卸底盘的动力序列。该过程显示了车辆中振动路径排名的良好能力，是诊断车辆内部振动问题的有效工具。发动机不同速度的模拟振动光谱具有良好的符合测试结果，但是存在一些不兼容，并已详细讨论。模拟结果显示了发动机安装优化方法的强度。
By new advancements in vehicle manufacturing; evaluation of vehicle quality assurance has got a more critical issue. Today noise and vibration generated inside and outside the vehicles are more important factors for customers than previous. So far several researchers have focused on interior noise transfer path analysis and the results have been published in related papers but each method has its own limitations. In present work, the vibration transfer path analysis and vibration path ranking of a car interior has been performed. As interior vibration is a source of structural borne noise problem, thus the results of this research can be used to present the structural borne noise state in a vehicle. The method proposed in this paper, in opposite of the earlier methods, do not need to disassemble the power train from the chassis. The procedure shows a good ability of vibration path ranking in a vehicle and is an effective tool to diagnose the vibration problem inside the vehicle. The simulated vibration spectrums in different speeds of the engine have a good compliance with the tested results however some incompatibilities exist and have been discussed in details. The simulated results show the strength of the method in engine mount optimization.
