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An improved OPAX method based on moving multi-band model

机译：一种基于移动多频带模型的改进OPAX方法

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In this paper, a transfer path analysis (TPA) method - OPAX is further improved. The new method uses multiple estimates of the dynamic mount stiffness in the multi-band OPAX method to increase the estimation accuracy. A moving multi-band model is used to establish the parametric load model. Two statistical metrics are introduced to evaluate the estimation uncertainty, and a strategy for iteratively calculating operational forces whilst quantitatively assessing estimation accuracy is proposed by combining the two metrics. A numerical case is used to illustrate the proposed method. The results show that this method not only produces better estimation than the multi-band model method, but also evaluates estimation accuracy quantitatively by itself. Then the proposed method is investigated and demonstrated by a vehicle example and a rule of thumb is formulated. Lastly, a test campaign is carried out on a full vehicle to validate the proposed method. (C) 2018 Elsevier Ltd. All rights reserved.
机译：本文进一步改进了传输路径分析（TPA）方法-OPAX。新方法在多频带OPAX方法中使用了动态安装刚度的多个估计，以提高估计精度。移动多频带模型用于建立参数负载模型。引入了两个统计指标来评估估计不确定性，并提出了一种将两个指标相结合来迭代计算操作力同时定量评估估计准确性的策略。数值案例用于说明所提出的方法。结果表明，该方法不仅比多频带模型方法具有更好的估计效果，而且可以对量化精度本身进行定量评价。然后以车辆为例对提出的方法进行了研究和论证，并制定了经验法则。最后，在整车上进行测试以验证所提出的方法。 （C）2018 Elsevier Ltd.保留所有权利。

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