| 导管随机振动响应分析与实验验证 |
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| 引用本文： | 周芒,刘敏,李姿琳,司会柳,杨明,郭杏林,高海洋,关振群.导管随机振动响应分析与实验验证[J].强度与环境,2013(5):30-36. |
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| 作者姓名： | 周芒 刘敏 李姿琳 司会柳 杨明 郭杏林 高海洋 关振群 |
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| 作者单位： | [1]大连理工大学运载工程与力学学部工程力学系工业装备结构分析国家重点实验事,大连116024 [2]北京宇航系统工程研究所,北京100076 |
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| 基金项目： | 973国家重点基础研究发展计划课题（2009CB724302）资助 |
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| 摘 要： | 作为传递装置，导管在各种机械系统中有着广泛的应用。通过对导管模型进行适当的精细化与简化，得到满足工程计算要求的高效的有限元模型；基于模态分析得到导管的动力特性，并通过实验进行验证；通过大量同类型导管的模态实验，得到导管的模态阻尼比随频率变化关系，为动力响应分析提供重要数据；基于随机振动分析，得到导管的均方根应力，该结果与实验结果吻合良好，验证了整个计算流程的有效性。
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| 关 键 词： | 导管 模态分析 阻尼比 随机振动 |
The random vibration response analysis of catheter and experimental verification推荐The random vibration response analysis of catheter and experimental verification0推荐 |
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| ZHOU Mang,LIU Min,ZHENG Jianyong,LI Zilin,SI Huiliu,YANG Ming,GUO Xinglin,GAO Haiyang,GUAN Zhenqun.The random vibration response analysis of catheter and experimental verification推荐The random vibration response analysis of catheter and experimental verification0推荐[J].Structure & Environment Engineering,2013(5):30-36. |
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| Authors: | ZHOU Mang LIU Min ZHENG Jianyong LI Zilin SI Huiliu YANG Ming GUO Xinglin GAO Haiyang GUAN Zhenqun |
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| Institution: | 1 State Key Laboratory of Structural Analysis For Industrial Equipment, Dalian 116024, China; 2 Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China) |
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| Abstract: | As a transfer device, catheter has extensively applied in various mechanical systems. In this paper, the catheter modal has been appropriately refined and simplified, and finally the efficient finite element model is obtained in order to satisfy the engineering calculation. Based on the modal analysis, the dynamic character of the catheter is calculated and passes through the experimental verification. The relationship between catheter’s modal damping ratio and frequency is obtained through a lot of modal experiments, which is very important data for dynamic response analysis. Random vibration analysis is performed to get the catheter’s RMS stress. The results are agreed with the experiment data, which verify the effectiveness of the whole calculation process. |
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| Keywords: | catheter modal analysis damping ratio random vibration |
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