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首页> 外文期刊>International Journal of Vehicle Noise and Vibration >Reducing disc brake squeal through FEM approach and experimental design technique
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Reducing disc brake squeal through FEM approach and experimental design technique

机译：通过有限元方法和实验设计技术减少盘式制动器的尖叫声

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摘要

This paper presents a novel approach to understand the influencing factors of the brake pad on the disc brake squeal by integrating finite element simulations with statistical regression techniques. The complex eigenvalue analysis has been widely used to predict unstable frequencies in brake system models and to provide design guidance. The 'input-output' relationships between the brake squeal and the brake pad geometry is constructed for possible prediction of the squeal using various geometrical configurations of the disc brake. Influences of the various factors, namely back plate Young's modulus, back plate thickness, chamfer, distance between two slots, slots width and angle of slots, are investigated using design of experiments technique. The proposed approach is aimed towards prediction of optimal pad design to reduce the damping ratio of the dominant unstable modes through the various factors of the brake pad geometrical construction. The damping ratio is analysed and a non-linear mathematical prediction model is developed based on the most influencing factors.
机译：本文提出了一种新颖的方法，通过将有限元模拟与统计回归技术相结合来了解制动盘对碟刹尖叫声的影响因素。复杂的特征值分析已广泛用于预测制动系统模型中的不稳定频率并提供设计指导。使用盘式制动器的各种几何构造，可在制动尖叫声和制动衬块几何形状之间建立“输入-输出”关系，以用于可能的尖叫预测。利用实验技术的设计，研究了背板杨氏模量，背板厚度，倒角，两个缝隙之间的距离，缝隙宽度和缝隙角度等因素的影响。所提出的方法旨在预测最佳的制动衬块设计，以通过制动衬块的几何构造的各种因素来降低主要不稳定模式的阻尼比。分析了阻尼比，并根据影响最大的因素建立了非线性数学预测模型。

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