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首页> 外文期刊>SAE International Journal of Passenger Cars - Mechanical Systems >Advancement in Vehicle Development Using the Auto Transfer Path Analysis
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Advancement in Vehicle Development Using the Auto Transfer Path Analysis

机译：利用自动传输路径分析促进车辆开发

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This paper presents the most recent advancement in the vehicle development process using the one-step or auto Transfer Path Analysis (TPA) in conjunction with the superelement, component mode synthesis, and automated multi-level substructuring techniques. The goal is to identify the possible ways of energy transfer from the various sources of excitation through numerous interfaces to given target locations. The full vehicle model, consists of superelements, has been validated with the detailed system model for all loadcases. The forces/loads can be from rotating components, powertrain, transfer case, chain drives, pumps, prop-shaft, differential, tire-wheel unbalance, road input, etc., and the receiver can be at driver/passenger ears, steering column/wheel, seats, etc. The traditional TPA involves two solver runs, and can be fairly complex to setup in order to ensure that the results from the two runs are consistent with subcases properly labeled as input to the TPA utility. However, auto TPA allows necessary data needed for the TPA analysis to be requested in a single frequency response analysis run. The TPA breaks down the total response to partial contributions from interface points under operation loads. Partial contributions to total response are then computed by multiplying transfer function with the force transmitted through each interface location. By comparing the results of two-step TPA with auto TPA, the effectiveness and efficiency of the auto TPA have been demonstrated for three load cases: a) powertrain excitation for cruising acceleration to engine torque (A/T) and noise to engine torque (P/T), b) propshaft imbalance, and c) rough road excitation, which is based on the power spectral density (PSD) function.
机译：本文介绍了使用单步或自动传递路径分析（TPA）结合超元素，组件模式综合和自动多级子结构化技术的车辆开发过程中的最新进展。目的是确定通过多种接口从各种激发源到给定目标位置的能量转移的可能方式。完整的车辆模型（由超元素组成）已针对所有工况进行了详细的系统模型验证。力/负载可以来自旋转部件，动力总成，分动箱，链传动，泵，传动轴，差速器，轮胎-车轮不平衡，道路输入等，接收器可以位于驾驶员/乘客的耳朵，转向柱上传统的TPA涉及两次求解器运行，并且设置起来可能相当复杂，以确保两次运行的结果与正确标记为TPA实用程序输入的子情况一致。但是，自动TPA允许在单个频率响应分析运行中请求TPA分析所需的必要数据。在操作负载下，TPA分解了对接口点部分贡献的总响应。然后，通过将传递函数与通过每个界面位置传递的力相乘来计算对总响应的部分贡献。通过将两步式TPA与自动TPA的结果进行比较，已证明了自动TPA在三种负载情况下的有效性和效率：a）动力总成激励，用于将加速巡航至发动机扭矩（A / T），将噪声巡航至发动机扭矩（ P / T），b）传动轴不平衡和c）基于功率谱密度（PSD）函数的粗糙路面激励。

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