| 基于有效点导纳的机械设备激励特性的转换关系研究 |
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| 引用本文： | 阮竹青,彭伟才,刘彦,张俊杰.基于有效点导纳的机械设备激励特性的转换关系研究[J].中国舰船研究,2011,6(6):45-48. |
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| 作者姓名： | 阮竹青 彭伟才 刘彦 张俊杰 |
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| 作者单位： | 中国舰船研究设计中心,湖北武汉,430064 |
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| 摘 要： | 针对机械设备安装到位后的振动预估问题,提出了一种基于有效点导纳的机械设备激励特性的转换方法。首先通过有效点导纳法将多点安装设备简化为多个单点安装设备,简化各个机脚之间的耦合作用;然后用自由速度作为设备的激励特性参数,建立不同安装基座的机械设备激励特性的转换关系;最后用弹性安装的电机进行了实验验证,将转换后基座振速的估算值与测量值进行对比分析。结果显示频率在20~1 000 Hz之间时,估算值总级的误差小于3 dB,表明该转换关系能够有效预估机械设备安装到位后的振动。
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| 关 键 词： | 自由速度 有效点导纳 转换关系 振动预估 |
Transferring Relationship of Machinery Exciting Force and Response under Different Mounting Conditions Based on Equivalent Mobility |
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| Ruan Zhu-qing,Peng Wei-cai,Liu Yan,Zhang Jun-jie.Transferring Relationship of Machinery Exciting Force and Response under Different Mounting Conditions Based on Equivalent Mobility[J].Chinese Journal of Ship Research,2011,6(6):45-48. |
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| Authors: | Ruan Zhu-qing Peng Wei-cai Liu Yan Zhang Jun-jie |
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| Institution: | Ruan Zhu-qing Peng Wei-cai Liu Yan Zhang Jun-jie China Ship Development and Design Center,Wuhan 430064,China |
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| Abstract: | A transferring method of machinery exciting force and response under different elastic mounting conditions were given to pre-estimate the vibration of the machine.Firstly,the coupling effect was dealt by predigesting one machine with several mounting points to several single mounting machines based on equivalent point mobility theory.Then,the transferring relationship of machine exciting force and response under different elastic mounting conditions were found based on the characterization of machinery exci... |
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| Keywords: | free velocity equivalent point mobility transferring relationship vibration prediction |
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