噪声和振动等舒适度曲线的快速确定方法

噪声和振动是车辆、船舶和飞机等交通工具舱室内部影响人体舒适性的重要因素。噪声和振动的等舒适度曲线是舱室减振降噪设计的重要指标。提出一种噪声和振动等舒适度曲线的快速确定方法,即通过不完整的交叉主观评价实验,确定噪声和振动的主观不舒适度随两者客观幅值的增长率,再通过增长率的比值,计算确定噪声和振动的舒适度等效曲线。相对于传统的完整交叉主观评价实验,该方法在保证预测模型准确率的情况下减小了实验时长和数据分析的工作量。

A Fast Method of Determining the Equivalent Comfort Contours Between Noise and Vibration

The noise and vibration are two main environmental stresses those affects human comfort in the carbines of vehicles,ships and airplanes.The equivalence comfort contours are important guidelines for the noise and vibration design in the carbines.This study proposed a fast method to determine the equivalent comfort contours between noise and vibration based on an incomplete cross-modality experiment.The discomfort produced by the noise relative to that produced by the reference vertical whole-body vibration,and the discomfort produced by the vertical whole-body vibration relative to that produced by the reference noise was investigated.The growth rates of discomfort produced by noise and vibration relative to the physical magnitudes of noise and vibration were obtained.The equivalent comfort contour between noise and vibration was calculated by the growth rates.Companied to the contours obtained by the traditional complete cross-modality experiment,the proposed method reduced the time cost of subjective experiment and the workload of the data analysis while ensuring the accuracy of the prediction model.