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Validation of Finite Element Models for Noise/Vibration/Harshness Simulation

机译：噪声/振动/粗糙度模拟的有限元模型验证

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摘要

Increased marketplace awareness of automotive noise, vibration and harshness (NVH) performance has spurred the use of computer aided engineering (CAE) tools such as finite element (FE) analysis for NVH simulation. These tools allow engineers to efficiently evaluate the performance of various design options. Unfortunately, design details which are often approximated in the model can have a significant impact on a model's accuracy. Thus, the process of model validation is an essential step in the simulation process. Model validation refers to the process of updating model parameters to make analytical response predictions correlate with test measurements of response. This article provides a general review of model validation techniques and processes. In particular, a process is described for the application of correlation software for the validation of large system models used for NVH simulation. The role of pretest simulation in the validation process is also discussed. As an example, the validation of a total vehicle system is presented.
机译：市场对汽车噪声，振动和粗糙度（NVH）性能的认识不断提高，促使计算机辅助工程（CAE）工具（例如有限元（FE）分析）用于NVH仿真。这些工具使工程师可以有效地评估各种设计选项的性能。不幸的是，通常在模型中近似的设计细节可能会对模型的准确性产生重大影响。因此，模型验证过程是仿真过程中必不可少的步骤。模型验证是指更新模型参数以使分析响应预测与响应测试度量相关的过程。本文对模型验证技术和过程进行了概述。特别地，描述了一种用于关联软件的应用的过程，该过程用于验证用于NVH仿真的大型系统模型。还讨论了预测试模拟在验证过程中的作用。作为示例，提出了整个车辆系统的验证。

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