Reciprocity in Experimental Modal Analysis

Peter Pavelka; Róbert Huňady; Martin Hagara; Franti?ek Trebuňa

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Reciprocity in Experimental Modal Analysis

机译：实验模态分析中的互惠

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This paper deals with modal analysis and estimation of modal parameters of an analyzed structure. An aim of the paper is to verify one of four basic assumptions considered in modal testing. This property is reciprocity. Reciprocity means that the frequency response function measured between two degrees-of-freedom must be the same regardless of which degree-of-freedom is input or output. In the paper the experimental and numerical modal analysis of a cantilever beam are presented. There are described two experimental measurements focused on reciprocity of measurement process. Measured mode shapes are compared to each other using Cross Modal Assurance Criterion. The results of experimental and numerical modal analysis are compared to each other.

机译：本文涉及模态分析和分析结构模态参数的估计。本文的目的是验证模态测试中考虑的四个基本假设之一。此属性是互惠的。互易性是指在两个自由度之间测得的频率响应函数必须相同，而与输入或输出哪个自由度无关。本文提出了悬臂梁的实验和数值模态分析。这里描述了两个专注于测量过程互易性的实验测量。使用“交叉模态保证标准”将测量的模式形状相互比较。实验和数值模态分析的结果相互比较。

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《American Journal of Mechanical Engineering》 |2015年第6期|共5页
作者
Peter Pavelka; Róbert Huňady; Martin Hagara; Franti?ek Trebuňa;
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1. The robustness of reciprocity: Experimental evidence that each form of reciprocity is robust to the presence of other forms of reciprocity [J] . David Melamed, Brent Simpson, Jered Abernathy Science Advances . 2020,第23期

机译：互惠的鲁棒性：实验证据表明，每个形式的互惠对于其他形式的互惠性的鲁棒性是强大的
2. Expansion of experimental mode shape from operational modal analysis and virtual sensing for fatigue analysis using the modal expansion method [J] . Tarpo Marius, Nabuco Bruna, Georgakis Christos, International Journal of Fatigue . 2020,第Jana期

机译：使用模态展开法从操作模态分析和虚拟感测扩展实验模式形状以进行疲劳分析
3. Material Property Identification using Operational Modal Analysis and Experimental Modal Analysis [J] . Chaitanya K GADAGAMMA, Muneyoshi NUMADA, Kimiro MEGURO 生産研究 . 2020,第4期

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4. EXPERIMENTAL VIBRO-ACOUSTICAL MODAL ANALYSIS: REFLECTIONS ON RECIPROCITY AND EXCITATION STRATEGY [C] . Katrien Wyckaert, Fulop Augusztinovicz International Modal Analysis Conference . 2004

机译：实验性振动声学模态分析：对互惠和激励策略的思考
5. Structural damage diagnosis using stereolithography, experimental modal analysis and finite element analysis. [D] . Alqaradawi, Mohamed Yousef. 2000

机译：使用立体光刻，实验模态分析和有限元分析进行结构损伤诊断。
6. The robustness of reciprocity: Experimental evidence that each form of reciprocity is robust to the presence of other forms of reciprocity [O] . David Melamed, Brent Simpson, Jered Abernathy 2020

机译：互惠的稳健性：实验证据表明每种互惠形式对其他形式的互惠均具有稳健性
7. Dynamic behaviour studies of a vertical axis wind turbine blade using Operational Modal Analysis (OMA) and Experimental Modal Analysis (EMA) [O] . Najafi Nadia, Schmidt Paulsen Uwe, Belloni F., 2014

机译：使用运行模态分析（Oma）和实验模态分析（Ema）的垂直轴风力机叶片动态特性研究
8. EXPERIMENTAL MODAL ANALYSIS AND DYNAMIC COMPONENT SYNTHESIS VOL. Ⅱ Measurement Techniques for Experimental Modal Analysis [R] . Randall J. Allemang, David L. Brown, Robert W. Rost 1987

机译：实验模态分析和动态组件合成VOL。 Ⅱ实验模态分析的测量技术

Reciprocity in Experimental Modal Analysis

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