基于ANSYS基础激励下某工装模态及谐响应分析
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摘要
采用大型CAD软件Pro/E建立某振动试验台实验工装的三维模型,基于ANSYS对实验工装进行了模态分析和谐响应分析。通过模态分析,得出了结构的前12阶固有频率和振型;在谐响应分析中采用向量叠加法求解实验工装在基础激励下的加速度频响曲线,分析出其在特定方向上的加速度频响峰值产生的原因,为工装的进一步优化设计提供了理论依据。
A large-scale CAD software Pro/E is used to establish a three-dimensional model of a vibration test bench experimental tooling. Based on ANSYS, modal analysis and harmonic response analysis of the experimental tooling are carried out. Through the modal analysis, the first 12 natural frequencies and modes of the structure are obtained. In the harmonic response analysis, the vector superposition method is used to solve the acceleration frequency response curve of the experimental tooling under the basic excitation, and the acceleration in a specific direction is analyzed. The reason for the peak frequency response provides a theoretical basis for further optimization of the tooling.
A large-scale CAD software Pro/E is used to establish a three-dimensional model of a vibration test bench experimental tooling. Based on ANSYS, modal analysis and harmonic response analysis of the experimental tooling are carried out. Through the modal analysis, the first 12 natural frequencies and modes of the structure are obtained. In the harmonic response analysis, the vector superposition method is used to solve the acceleration frequency response curve of the experimental tooling under the basic excitation, and the acceleration in a specific direction is analyzed. The reason for the peak frequency response provides a theoretical basis for further optimization of the tooling.
引文
[1]刘涛,王卫辉,鹿飞,等.基于Workbench的箱形伸缩臂模态及谐响应分析[J].制造业自动化,2015(4):80-82,97.
[2]刘进,尹明德,张志龙.基于ANSYS的某直升机尾梁管模态及谐响应分析[J].机械工程与自动化,2013(2):64-65.
[3]邵景范,李文斌.基于ANSYS的电镀砂轮模态及谐响应分析[J].机械工程与自动化,2011(4):67-68.
[4]胡杰.基础激励下基于模态叠加法的谐响应分析[J].计算机辅助工程,2014(12):94-95.
[5]拉布索思.模拟振动台施加加速度激励的方法[EB/OL].(2013-06-01)[2018-08-15].https://wenku.baidu.com/view/bf414453336c1eb91a375d41.html..
[6]刘昌领,陈建义,李清平,等.基于ANSYS的六缸压缩机曲轴模态分析及谐响应分析[J].流体机械,2012,40(8):17-21.
[2]刘进,尹明德,张志龙.基于ANSYS的某直升机尾梁管模态及谐响应分析[J].机械工程与自动化,2013(2):64-65.
[3]邵景范,李文斌.基于ANSYS的电镀砂轮模态及谐响应分析[J].机械工程与自动化,2011(4):67-68.
[4]胡杰.基础激励下基于模态叠加法的谐响应分析[J].计算机辅助工程,2014(12):94-95.
[5]拉布索思.模拟振动台施加加速度激励的方法[EB/OL].(2013-06-01)[2018-08-15].https://wenku.baidu.com/view/bf414453336c1eb91a375d41.html..
[6]刘昌领,陈建义,李清平,等.基于ANSYS的六缸压缩机曲轴模态分析及谐响应分析[J].流体机械,2012,40(8):17-21.