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中文字数:3941, 英文字数:2940 摘要:在液压回路中合理的模拟噪音需要用到可靠的实验数据.在汽车动力转向应用中,得到泵和转向器的可靠阻抗对流体脉动噪声模拟是非常重要的.采集动力转向泵的数据一直是很多研究的课题.而另一方面,转向器则不太被人们注意.本文的目的就是全面评估得到转向器数据的必要性,并描述符合现有ISO标准的得到数据的测试方法.本文描述了得到的结果并做了其它方面的研究.特别对压力的作用,转向方位,从动泵,以及转向时作用在架子上的流体阻抗进行了研究.此外还解决了测量数据的重复性和生产变性.
ABSTRACT--Proper simulation of noise in hydraulic circuits requires reliable experimental data to be used in the simulations. In automotive power steering applications, obtaining reliable impedance data for both the pump and steering gear is critical for the success of any fluid-borne noise simulation program. Collecting data for power steering pumps has been the subject of various studies. steering gears, on the other hand, have received little attention. The purpose of this paper is to present a comprehensive assessment of the need of such data and describe a test setup for obtaining the data according to recent ISO standards. This paper describes the results obtained and presents several studies. In particular, the effects of pressure, steering position, slave pump and steering fluid on rack impedance will be studied. Furthermore, repeatability and production variability of measured data will be addressed. |
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