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首页> 外文期刊>SAE International Journal of Passenger Cars - Mechanical Systems >Investigation of Tire-Road Noise with Respect to Road Induced Wheel Forces and Radiated Airborne Noise
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Investigation of Tire-Road Noise with Respect to Road Induced Wheel Forces and Radiated Airborne Noise

机译：关于车轮诱导车轮力和辐射空气传播噪声的轮胎噪声研究

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摘要

Low interior noise levels in combination with a comfortable sound is an important task for passenger cars. Due to the reduction of many noise sources over the last decades, nowadays tire-road noise has become one of the dominant sources for the interior noise. Especially for manufactures of luxury cars, the reduction of tire-road noise is a big challenge and therefore a central part of NVH development. The knowledge of the noise transmission behavior based on the characteristics of the relevant sources is a fundamental of a modern NVH - development process. For tire-road noise the source characteristics can be described by wheel forces and radiated airborne noise. In combination with the related vehicle transfer functions it is possible to describe the noise transmission behavior in detail. A method for estimating wheel forces and radiated airborne noise is presented. The method is based on TPA (= Transfer Path Analysis) via matrix inversion and involves the measurement of the vehicle transfer functions. It can be applied to analyse the interior noise under different driving conditions such as driving on smooth or rough roads. TPA is used to estimate the wheel forces and radiated airborne noise, as well as the interior noise level. In this study, good agreement was found between TPA-calculations and measurements of wheel forces (Kistler Wheel Force Sensor) and interior noise. Finally, advantages and disadvantages of the wheel TPA method are discussed, and future research topics are identified.
机译：对于乘用车来说，低内部噪音水平与舒适的声音相结合是一项重要的任务。由于过去几十年来减少了许多噪声源，如今，轮胎路面噪声已成为内部噪声的主要来源之一。尤其对于豪华车制造商而言，降低轮胎噪音是一项巨大的挑战，因此是NVH开发的核心部分。基于相关声源的特征的噪声传播行为的知识是现代NVH开发过程的基础。对于轮胎噪声，其源特性可以通过车轮力和辐射的机载噪声来描述。结合相关的车辆传递函数，可以详细描述噪声传递行为。提出了一种估计车轮力和辐射空气传播噪声的方法。该方法基于通过矩阵求逆的TPA（=传递路径分析），涉及车辆传递函数的测量。它可用于分析不同驾驶条件下的内部噪音，例如在平坦或崎rough的道路上行驶。 TPA用于估算车轮力和辐射的航空噪声以及内部噪声水平。在这项研究中，TPA计算和车轮力测量（奇石乐车轮力传感器）与内部噪音之间找到了很好的一致性。最后，讨论了车轮TPA方法的优缺点，并确定了未来的研究主题。

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