汽车燃油箱油液晃动噪声测试方法研究

Research on the Test Method of Sloshing Noise of Automobile Fuel Tank

车内噪声是反应用户乘坐舒适性体验的关键因素,针对其研究和测试的方法也越来越成熟。在新能源为主要动力的节能车辆上,传统的发动机噪声已经消失或不再是噪声的主要来源,本文根据目前市场反馈的油箱晃动噪声问题开展分析研究,以某款车的燃油箱为研究对象,使用台架搭载燃油箱,模拟车辆车速发生急速变化时,燃油因惯性原因撞击油箱内表面,从而产生晃动噪声的情况。该台架可以研究燃油箱在不同液位不同车速下产生的晃动噪声情况,根据实际需求在不同点位采集噪声进行对比分析研究。通过不同的试验研究表明,该试验方法可以为燃油箱晃动噪声的研究提供可靠的试验数据,为燃油箱设计开发和整车匹配提供测试数据支持。

Vehicle noise is a key factor reflecting the user’s ride comfort experience. The research and testing methods are becoming more and more mature. With new energy as the main power of energy-saving vehicles, the traditional engine noise has disappeared or is no longer the main source of the noise;this paper according to the current market feedback tank sloshing noise problem to carry out the analysis and research, to the fuel tank of a car as the research object, using the bench carry fuel tank, simulate the vehicle speed change sharply, bump because of inertia cause fuel tank inner surface, Resulting in sloshing noise. The platform can study the sloshing noise generated by the fuel tank at different liquid levels and different vehicle speeds and collect noise at different points according to the actual needs for comparative analysis and research. Different experimental studies show that this test method can provide reliable test data for the study of fuel tank sloshing noise and provide test data support for fuel tank design and development and vehicle matching.