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首页> 外文期刊>Mechanical systems and signal processing >Decoupling of mechanical systems based on in-situ frequency response functions: The link-preserving, decoupling method
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Decoupling of mechanical systems based on in-situ frequency response functions: The link-preserving, decoupling method

机译：基于原位频率响应函数的机械系统解耦：链路保持解耦方法

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摘要

Mechanical structures often consist of active and passive parts, the former containing the sources, the latter the transfer paths and the targets. The active and passive parts are connected to each other by means of links. In this paper, an innovative theoretical model has been developed to achieve the mathematicat decoupling of such structures without disassembling the substructures, when the links connecting the structures are resilient enough. This procedure is required to identify components causing a specific Noise, Vibration and Harsh-ness (NVH) problem. The links are regarded as a parallel connection of springs and dampers, ignoring some physical properties. However, the new procedure will provide a powerful construction in which different link models can be investigated. Therefore, this procedure will be called the Link-Preserving, Decoupling Method (LPD method). The absence of a time-consuming physical decoupling procedure distinguishes the LPD method from all known methods such as the classical TPA method. The LPD method is validated by two numerical simulations using linear and nonlinear lumped parameter models and by an experimental case study.
机译：机械结构通常由主动和被动部分组成，前者包含源，后者包含传递路径和目标。有源部分和无源部分通过链接相互连接。在本文中，已经开发了一种创新的理论模型，当连接结构的连杆足够有弹性时，可以在不拆卸子结构的情况下实现此类结构的数学解耦。需要此过程来识别导致特定噪声，振动和苛刻性（NVH）问题的组件。连杆被视为弹簧和阻尼器的并联连接，而忽略了某些物理特性。但是，新程序将提供强大的构造，可以在其中研究不同的链接模型。因此，该过程将被称为链路保持解耦方法（LPD方法）。由于没有耗时的物理解耦程序，因此LPD方法与所有已知方法（例如经典TPA方法）不同。通过使用线性和非线性集总参数模型的两个数值模拟以及一个实验案例研究，对LPD方法进行了验证。

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  • 来源
    《Mechanical systems and signal processing》 |2015年第6期|340-354|共15页
  • 作者

    Laurent Keersmaekers; Luc Mertens; Rudi Penne; Patrick Guillaume; Gunther Steenackers;

  • 作者单位

    Department of Applied Engineering (FTI), University of Antwerp, Op3Mech, Salesianenlaan 90, B-2660 Hoboken, Belgium,Department of Mechanical Engineering (MECH), Vrije Universiteit Brussel, Acoustics & Vibration Research Group (AVRG), Pleinlaan 2, B-1050 Brussels, Belgium;

    Department of Applied Engineering (FTI), University of Antwerp, Op3Mech, Salesianenlaan 90, B-2660 Hoboken, Belgium;

    Department of Applied Engineering (FTI), University of Antwerp, Op3Mech, Salesianenlaan 90, B-2660 Hoboken, Belgium,Department of Mathematics, University of Antwerp, Middelheimlaan 1, B-2020 Antwerpen, Belgium;

    Department of Mechanical Engineering (MECH), Vrije Universiteit Brussel, Acoustics & Vibration Research Group (AVRG), Pleinlaan 2, B-1050 Brussels, Belgium;

    Department of Applied Engineering (FTI), University of Antwerp, Op3Mech, Salesianenlaan 90, B-2660 Hoboken, Belgium,Department of Mechanical Engineering (MECH), Vrije Universiteit Brussel, Acoustics & Vibration Research Group (AVRG), Pleinlaan 2, B-1050 Brussels, Belgium;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    LPD; TPA; Decoupling; Lumped parameters; Mechanical vibrations; Modal analysis;

    机译：LPD;TPA;去耦;集总参数;机械振动;模态分析;

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