Energy Flow Method (EFM) For Mid-Frequency Vibration Analysis

机译：能量流方法（EFM）用于中频振动分析

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Energy Flow Method (EFM) is implemented to model a passenger vehicle for middlefrequency vibration analysis. Energy Influence Coefficients (EIC) and Power InfluenceCoefficients (PIC) are derived in closed-form based on the modal solution of a Finite ElementAnalysis (FEA) model for each frequency band. The structure response of the system iscalculated by applying various load cases to the EFM model which consists of these EIC’sand PIC’s. The comparisons of structure responses between the EFM results and test resultsfor a body-in-white (BIW) structure and production vehicle are in good agreement.

机译：能量流方法（EFM）用于对乘用车进行建模以进行中频振动分析。基于每个频段的有限元分析（FEA）模型的模态解决方案，以封闭形式导出能量影响系数（EIC）和功率影响系数（PIC）。通过将各种工况应用于由这些EIC和PIC组成的EFM模型，可以计算出系统的结构响应。 EFM结果与白车身（BIW）结构和量产车的测试结果之间的结构响应比较非常吻合。

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《Korean Society of Noise & Vibration Control;Institute of Noise Control Engineering;International congress and exposition on noise control engineering;ASME Noise Control & Acoustics Division》|2015年|1-6|共6页
会议地点 San Francisco, CA(US)
作者
Qijun Zhang; Dennis Wang; Mike Qian;
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General Motors Corporation 3300 General Motors RoadMail Code: 483-394-206 Milford MI 48376;

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2. Optimization of mid-frequency vibration for complex built-up systems using the hybrid finite element-statistical energy analysis method [J] . Gao Ruxin, Zhang Yahui, Kennedy David Engineering Optimization . 2020,第10a12期

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3. A hybrid finite element-energy finite element method for mid-frequency vibrations of built-up structures under multi-distributed loadings [J] . Danhui Zhu, Hualing Chen, Xiangjie Kong, Journal of Sound and Vibration . 2014,第22期

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4. Energy Flow Method (EFM) For Mid-Frequency Vibration Analysis [C] . Qijun Zhang, Dennis Wang, Mike Qian INTER-NOISE 2002;International congress and exposition on noise control engineering . 2002

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5. A basic development of a hybrid finite element method for mid-frequency computations of structural vibrations. [D] . Zhao, Xi. 2000

机译：用于结构振动中频计算的混合有限元方法的基本发展。
6. A New Method to Perform Direct Efficiency Measurement and Power Flow Analysis in Vibration Energy Harvesters [O] . Jan Kunz, Jiri Fialka, Stanislav Pikula, 2021

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7. Energy flow analysis of mid-frequency vibration of coupled plate structures with a hybrid analytical wave and finite element model [O] . Ma Yongbin, Zhang Yahui, Kennedy David 2016

机译：混合分析波与有限元模型耦合板结构中频振动能流分析

Energy Flow Method (EFM) For Mid-Frequency Vibration Analysis

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