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Equal Annoyance Contours for Steering Wheel Hand-Arm Vibration

机译：用于方向盘手臂振动的平等烦恼轮廓

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The steering wheel is one of the primary sensory inputs for vehicle vibration while driving. Past research on hand-arm vibration has focused on a hand gripping a rod or a hand on a flat plate. Little work has focused on the perception of vibration felt through an automotive steering wheel. This paper discusses the investigation conducted at Ford's Vehicle Vibration Simulator Lab to develop equal annoyance contours for hand-arm vibration. These contours were developed for four different degrees-of-freedom: vertical, lateral, longitudinal and rotation about the steering wheel center. Rotation about the steering wheel is commonly induced by a 1st-order tire non-uniformity force and imbalance of the wheel/tire. These 1st-order excitation forces generate vibration in the frequency range of 8-20 Hz. Using a method-of-adjustment evaluation procedure, equal annoyance contours were developed using pure sinusoids over this frequency range for two levels of reference vibration (0.8 m/s{sup}2 and 1.6 m/s{sup}2 @ 14 Hz). These equal annoyance contours showed a small vibration level effect and also indicated a reduced annoyance as the frequency is increased. The equal annoyance contours for the three translational degrees-of-freedom were investigated over the frequency range of 10-64 Hz using a single reference signal of 1 m/s{sup}2 @ 25.5 Hz. All contours showed a general trend of decreasing annoyance as frequency increased with the effect being less pronounced in the 40-64 Hz frequency range. It is also shown that the frequency weighting observed is in better agreement with Giacomin's W{sub}s weighting than, W{sub}h, as defined in ISO 5349-1 and BS 6842 standards for hand-arm vibration.
机译：方向盘是驾驶时车辆振动的主要感觉输入之一。过去的手臂振动研究专注于抓住杆或手在平板上的手。小的工作专注于通过汽车方向盘的振动感受的感觉。本文讨论了在福特车辆振动模拟器实验室进行的调查，为手臂振动开发平等的烦恼轮廓。这些轮廓是为四种不同的自由度开发的：垂直，横向，纵向和绕方向盘中心的旋转。关于方向盘的旋转通常由第一阶轮胎不均匀力和车轮/轮胎的不平衡引起的。这些第一阶激励力在8-20Hz的频率范围内产生振动。使用调整方法评估程序，在两个频率范围内使用纯正弦曲线在两个频率范围内开发相同的烦恼轮廓（0.8 m / s {sup} 2和1.6 m / s {sup} 2 @ 14 hz） 。这些平等的烦恼轮廓显示出小的振动水平效果，并且由于频率增加，也表明了减少的烦恼。使用1 m / s {sup} 2 @ 25.5 hz的单个参考信号，在10-64Hz的频率范围内研究了三个平移自由度的平等烦恼轮廓。所有轮廓都显示出令人烦恼的一般趋势，因为频率增加，在40-64Hz频率范围内的效果不那么明显。还示出观察到的频率加权与GIACON的W {SUB} S比率更好，如ISO 5349-1和手臂振动的ISO 5349-1和BS 6842标准所定义的W {SUB} H.

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