吕剑,许秦蓉.基于试验模态方法的递纸机构优化设计[J].包装工程,2015,36(5):90-94.
LYU Jian,XU Qin-rong.Design Optimization of Paper-feeding Mechanism Based on Experimental Modal Analysis[J].Packaging Engineering,2015,36(5):90-94. |
| 基于试验模态方法的递纸机构优化设计 |
| Design Optimization of Paper-feeding Mechanism Based on Experimental Modal Analysis |
| 投稿时间：2014-11-27 修订日期：2015-03-10 |
| DOI： |
| 中文关键词: 递纸机构 单张纸胶印机 试验模态分析法 动态响应 |
| 英文关键词: paper-feeding mechanism sheet-fed offset press experimental modal analysis dynamic response |
| 基金项目:新闻出版总署数字印刷工程研究中心数字传播重点实验室基金 （10-00-309-000） |
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| 中文摘要: |
| 目的 分析单张纸胶印的递纸机构， 寻求当最高印刷速度提高时需要改进的设计环节。方法采用实验模态法对单张纸胶印机的递纸机构进行分析， 将实验模态分析技术引入递纸机构动态响应的求解过程， 并通过求解结果指导并改进设计。结果 在有样机可提供测试的情况下， 用试验模态分析方法建模的精度会高于常用的单自由度集中质量法， 对系统进行测试分析能够达到更准确的结果。运用该方法将一款单张纸胶印机的最高速度由13 000张/h提高到了16 500张/h。结论 试验模态方法能为胶印机的改进设计提供依据， 既是结构设计和动力学设计的有效补充， 也是校核的工具。其他关键机构如输纸头、 前规和咬牙开闭机构等凸轮连杆机构也可以使用此方法进行分析研究。 |
| 英文摘要: |
| The paper-feeding mechanism of sheet-fed offset press was analyzed to find the design link which should be improved to increase the maximum printing speed. The experimental modal method was applied to analyze the paper-feeding mechanism of sheet-fed offset press, and the experimental modal analysis technique was introduced into the solution of dynamic response of the paper-feeding mechanism. The solution was then used to guide and improve the design. When there was prototype for testing, the modeling accuracy of the experimental modal analysis technique was higher than the common single degree of freedom lumped mass method. Correspondingly, more accurate method could be achieved by test analysis of the system. Application of this method increased the maximum speed of one kind of sheet-fed offset press from 13 000 sheet/hour to 16 500 sheet/hour. Experimental modal analysis method could provide reference for the improvement design of offset press. It is not only an effective supplementation to structural design and dynamic design, but also a tool for checking. This method could also be applied in the analysis and study on other key mechanisms such as paper-feeding head, front lay mechanism and cam-linkage mechanisms like open-close gripper mechanism. |
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