| 鼓式制动器模态及谐响应分析 |
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| 引用本文： | 郑彬,钟发,张敬东,蒋勇,范兴平.鼓式制动器模态及谐响应分析[J].中国农机化学报,2020(4):117-122. |
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| 作者姓名： | 郑彬 钟发 张敬东 蒋勇 范兴平 |
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| 作者单位： | 攀枝花学院交通与汽车工程学院;钒钛资源综合利用四川省重点实验室 |
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| 基金项目： | 钒钛资源综合利用四川省重点实验室开放基金(2019FTSZ08);四川省教育厅自然科学重点项目(18ZA0293);攀枝花学院校级培育项目(2017ZD007)。 |
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| 摘 要： | 为研究某农用车鼓式制动器在制动过程中的动力学特性,避免产生共振,对鼓式制动器进行模态和谐响应分析。建立鼓式制动器的三维模型,导入至ANSYS中对鼓式制动器进行模态分析,得到鼓式制动器的前六阶固有频率与模态振型。在模态分析基础上,对鼓式制动器进行谐响应分析,得到位移与频率响应曲线和加速度与频率响应曲线。结果表明:鼓式制动器的位移和加速度幅值分别在320Hz和450Hz时振幅最大,即固有模态阶数的第2阶和第3阶附近。通过谐响应分析,得出鼓式制动器易发生共振时的频率,为鼓式制动器的结构设计和优化提供理论依据。
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| 关 键 词： | 鼓式制动器 三维建模 模态分析 谐响应分析 有限元法 频率响应分析 |
Modal and harmonic response analysis of drum brake |
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| Zheng Bin,Zhong Fa,Zhang Jingdong,Jiang Yong,Fan Xingping.Modal and harmonic response analysis of drum brake[J].Chinese Agricultural Mechanization,2020(4):117-122. |
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| Authors: | Zheng Bin Zhong Fa Zhang Jingdong Jiang Yong Fan Xingping |
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| Institution: | (School of Transportation and Automobile Engineering,Panzhihua University,Panzhihua,617000,China;Sichuan Key Laboratory of Comprehensive Utilization of Vanadium and Titanium Resources,Panzhihua,617000,China) |
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| Abstract: | In order to study the dynamic characteristics of drum brake of an agricultural vehicle during braking process and avoid resonance,modal and harmonic response analysis of drum brake was carried out.The three dimensional model of drum brake is established and imported into ANSYS to carry out modal analysis.The first six natural frequencies and vibration modes of drum brake are obtained.On the basis of modal analysis,the harmonic response of drum brake is analyzed.The displacement and frequency response curves,acceleration and frequency response curves are obtained.The results show that the maximum amplitude of displacement and acceleration of drum brake are at 320 Hz and 450 Hz,which are near the second and third order of natural frequency.The frequency which resonance occurs easily of drum brake is obtained by harmonic response analysis.It provides a theoretical basis for the structural design and optimization of drum brake. |
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| Keywords: | drum brake three dimensional model modal analysis harmonic response analysis finite element method frequency response analysis |
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