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INVESTIGATION OF NOISE CHARACTERIZATION OF COATED ROTORS
Surface Review and Letters ( IF 1.2 ) Pub Date : 2020-08-16 , DOI: 10.1142/s0218625x20500353
ALİ ÖZ 1, 2 , ABDULLAH DEMİR 1, 2
Affiliation  

In this study, four excessive worn brake rotors of a light commercial vehicle are coated using different thickness, methods and powder coatings. Coated rotors ([Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text]) compared with OEM brake rotor ([Formula: see text]0) in terms of friction coefficient ([Formula: see text]) and braking noise. Three braking test procedures (bedding, hot judder I and II) are applied to five rotors using inertia brake dynamometer. Results in bedding testing procedures showed that [Formula: see text] rotor provided higher brake noise and higher [Formula: see text] compared with coated rotors. In hot judder I testing procedures, [Formula: see text] rotor provided higher [Formula: see text] and higher brake noise compared with the other coated rotors and [Formula: see text]. Also, in hot judder II testing procedures, [Formula: see text] rotor provided higher [Formula: see text] compared with the other rotors, [Formula: see text] provided higher brake noise compared with the other coated rotors. In addition, based on experimental data, noise levels are estimated by multiple regression method with dummy variables.

中文翻译:

涂层转子的噪声特性研究

在这项研究中,使用不同厚度、方法和粉末涂料对轻型商用车的四个过度磨损的制动转子进行涂层。涂层转子([公式:见文本]、[公式:见文本]、[公式:见文本]和 [公式:见文本])与 OEM 制动转子([公式:见文本]0)的摩擦系数比较([公式:见正文])和制动噪音。使用惯性制动测功机对五个转子应用三个制动测试程序(磨床、热颤动 I 和 II)。床上用品测试程序的结果表明,与涂层转子相比,[公式:见文本]转子提供了更高的制动噪音和更高的[公式:见文本]。在 hot judder I 测试程序中,[公式:见正文] 转子与其他涂层转子和 [公式:见正文] 相比,提供了更高的 [公式:见正文] 和更高的制动噪音。还,在 hot judder II 测试程序中,[公式:见文本] 转子提供了比其他转子更高的 [公式:见文本],[公式:见文本] 与其他涂层转子相比,[公式:见文本] 提供了更高的制动噪音。此外,根据实验数据,采用虚拟变量的多元回归方法估计噪声水平。
更新日期:2020-08-16
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