Independent characterization of structure-borne sound sources using the in-situ blocked force method
Independent characterization of structure-borne sound sources using the in-situ blocked force method
复制标题
使用原位阻挡力法独立表征结构声源
DOI：
--
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
A. Moorhouse
中科院分区：
文献类型：
--
作者：
T. Alber;M. Sturm;A. Moorhouse
现代车辆系统和部件的振动声学行为在汽车行业高质量产品的开发过程中发挥着越来越重要的作用。为了表征众多的机械、电气和机电系统（其中许多系统体现了结构声和振动的重要来源），需要先进的测量技术。理想情况下，此类表征技术应允许在测试台上指定供应商组件，而无需进行车辆测量，以便在开发过程的早期阶段更好地了解 NVH 行为。本文研究了原位阻挡力方法作为一种独立于接收器的方法来表征电动转向系统的适用性。首先，从测试台测量中获得阻塞力，以表征系统在多个连接点的特征。在第二步中，受阻力被传递到第二个结构，以预测不同安装中的接收器响应。通过将预测响应与实际测量结果进行比较，研究了原位阻挡力方法的准确性。最后，讨论了所获得的数据对于内部声压虚拟预测的可用性。
The vibro-acoustic behavior of systems and components in modern vehicles play an increasingly important role in the development process of high quality products in automotive industry. In order to characterize the numerous mechanical, electrical and mechatronic systems, many of which embody significant sources of structure-borne sound and vibration, advanced measurement techniques are required. Ideally, such characterization techniques should allow specifying supplier components on a test rig without the necessity of conducting vehicle measurements to allow a better understanding of the NVH behavior at an early stage in the development process. This paper investigates the applicability of the in-situ blocked force method as a receiver-independent approach for the characterization of an electrical steering system. First, blocked forces are obtained from test bench measurements to characterize the system at its multiple connection points. In a second step, the blocked forces are transferred to a second structure to predict the receiver response in a different installation. The accuracy of the in-situ blocked force approach is investigated by comparing the predicted response with actual measurements. Finally, the usability of the obtained data for a virtual prediction of the interior sound pressure is discussed.
影响因子：
8.4
作者：
A. Moorhouse;T. Evans;A. Elliott
通讯作者：
A. Moorhouse;T. Evans;A. Elliott