| 一种麦冬收获机车架的随机振动分析 |
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| 引用本文： | 杨勇,梁尚明,贺亚博.一种麦冬收获机车架的随机振动分析[J].西华大学学报(自然科学版),2019,38(6):87-91. |
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| 作者姓名： | 杨勇 梁尚明 贺亚博 |
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| 作者单位： | 四川大学机械工程学院，四川 成都 610065 |
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| 基金项目： | 巴中市南江县—农技推广川科农〔2018〕12号-313 |
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| 摘 要： | 为掌握麦冬收获机车架的动态特性，对其进行C级路面上的随机振动分析，建立一种麦冬收获机车架的有限元模型，并基于ANSYS Workbench软件进行模态分析，提取出车架的固有频率，在C级路面随机激励的情况下，采用模态叠加法求解出该车架的应力、位移云图，得到随机振动激励下最大振幅处的位移、速度、加速度响应曲线，进而了解其动态特性，从而为车架的结构优化提供有效的理论参考依据。
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| 关 键 词： | 随机振动 车架 功率谱密度 激励 动态特性 |
| 收稿时间： | 2019-05-26 |
Random Vibration Analysis of an Ophiopogon Japonicus Harvester Frame |
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| YANG Yong,LIANG Shangming,HE Yabo.Random Vibration Analysis of an Ophiopogon Japonicus Harvester Frame[J].Journal of Xihua University:Natural Science Edition,2019,38(6):87-91. |
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| Authors: | YANG Yong LIANG Shangming HE Yabo |
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| Affiliation: | School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065 China |
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| Abstract: | As for dynamic characteristics of ophiopogon japonicus, vibration analysis of C grade pavement is an essential factor for the development of modern agricultural machinery.A finite element model of the ophiopogon japonicus harvester frame was established and modal analysis based on ANSYS Workbench software was performed to extract the natural frequency of the frame.In the case of random excitation of the road surface, the modal superposition method was used to solve the stress and displacement cloud map of the frame, and then the displacement, velocity and acceleration response curves at the maximum amplitude under random vibration excitation were obtained, and the dynamic characteristics were worked out.This is very helpful for the structural optimization of the frame. |
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