乘用车油箱的燃油晃动噪声工况传递路径分析

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (18) : 184-188.

论文

屠翔宇1, 蒋伟康1, 朱志勇2, 杨文华2

作者信息 +

Operational Transfer Path Analysis of Automotive Fuel Tank Sloshing Nosie

TU Xiangyu1, JIANG Weikang1& Zhu Zhiyong2, Yang Wenhua2

Author information +

文章历史 +

摘要

汽车刹车之后油箱的燃油晃动噪声会引起车内驾驶员和乘客的不适。为了研究乘用车油箱晃动噪声的传递特性，采用工况传递路径分析方法，对某型号油箱进行研究。根据油箱的安装方式，以油箱的安装部件绑带和减振垫作为结构噪声传递路径，建立工况传递路径分析（OTPA）模型。对比车内噪声信号的计算值与实测值的频谱，发现两者吻合的很好，从而验证了模型的正确性。根据OTPA模型，计算出各路径的传递噪声贡献。通过分析结构路径振动加速度频谱和传递函数频谱，提出了改进燃油晃动噪声问题的方法。

Abstract

The sloshing noise in the fuel tank after car braking would make driver and passenger uncomfortable. The transmission characteristics of a definite type of fuel tank were studied, with the method of operational transfer path analysis (OTPA). According to the installation method of the tank, an OTPA model of sloshing noise was established, regarding the bandages and anti-vibration pads as the structure-borne noise paths. Comparing the calculated value and the measured value of the spectrum of sloshing noise, we find they coincide, so the model is proved valid. According to OTPA model, the noise contribution spectrum of each path was calculated. By analyzing the vibration acceleration spectrum and the transfer function spectrum of structure-borne noise paths, some improvements were proposed for reducing the sloshing noise.

导出引用

屠翔宇1, 蒋伟康1, 朱志勇2, 杨文华2. 乘用车油箱的燃油晃动噪声工况传递路径分析[J]. 振动与冲击, 2017, 36(18): 184-188

TU Xiangyu1, JIANG Weikang1& Zhu Zhiyong2, Yang Wenhua2. Operational Transfer Path Analysis of Automotive Fuel Tank Sloshing Nosie[J]. Journal of Vibration and Shock, 2017, 36(18): 184-188

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