| 用相对激振法对数控车床的实验模态分析 |
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| 引用本文： | 董异誌,刘晓惠,孙磊,杨树晓,崔晓兰. 用相对激振法对数控车床的实验模态分析[J]. 组合机床与自动化加工技术, 2011, 0(12) |
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| 作者姓名： | 董异誌 刘晓惠 孙磊 杨树晓 崔晓兰 |
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| 作者单位： | 1. 云南省机械研究设计院机械工业机床产品质量检测中心,昆明,650031
2. 云南出入境检验检疫局,昆明,650228 |
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| 基金项目： | 国家质检总局科技计划项目 |
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| 摘 要： | 基于结构实验模态分析技术,模拟实际加工工况,用正弦宽频扫描激振,对K510n数控车床各点测取加速度响应信号.用Polymax模态参数识别软件对实测的频响函数数据进行识别处理,得到了该车床的多阶振动模态参数,并取出三阶薄弱模态进行详细分析处理,得出以提高车床切削抗振能力为目标的动力学优化设计改进方案.
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| 关 键 词： | 数控车床 实验模态分析 动态特性 优化设计 |
Test Modal Analysis of Numerically Controlled Lathe Under Relative Excitation |
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| DONG Yi-zhi,LIU Xiao-hui,SUN Lei,YANG Shu-Xiao,CUI Xiao-Lan. Test Modal Analysis of Numerically Controlled Lathe Under Relative Excitation[J]. Modular Machine Tool & Automatic Manufacturing Technique, 2011, 0(12) |
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| Authors: | DONG Yi-zhi LIU Xiao-hui SUN Lei YANG Shu-Xiao CUI Xiao-Lan |
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| Affiliation: | DONG Yi-zhi 1,LIU Xiao-hui 2,SUN Lei 2,YANG Shu-Xiao 2,CUI Xiao-Lan 2(1.Machinery Industry Machine Tool Quality of Products Test Center,Yunnan Mechanical Research&Design Institute,Kunming 650031,China,2.Entry-Exit Inspection and Quarantine Bureau of Yunnan,Kuming 650228,China) |
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| Abstract: | Based on structure experimental modal analysis technology,simulation practical processing conditions,w hen using sine broadband scanned excitation,every bit of acceleration response signals on CNC lathe K510n w ill be measured.When w e used Polymax modal parameter identification soft,many order vibration modal parameter can be obtained via identifying the frequency response function of the measured data.When three order w eak modal parameters w ere taken out to analyse processing detailedly,w e can get dyna... |
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| Keywords: | CNC lathe experimental modal analysis dynamic characteristics optimization design |
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