经编机梳栉的横移振动分析  

Analysis of shogging motion vibration of guide bars on warp knitting machines

作　　者：张琦 夏风林 刘念 李怀宇 李萍 孙黎明 

机构地区：[1]江南大学经编技术教育部工程研究中心,江苏无锡214122

出　　处：《纺织学报》2013年第7期121-125,共5页Journal of Textile Research

基　　金：中央高校基本科研业务费专项资金资助项目(JUSRP211A04);江苏省产学研联合创新资金项目(BY2010119);中国纺织工业联合会科技指导性项目(2011067)

摘　　要：针对经编机高速运行时导纱梳栉因机械振动而产生擦针或擦伤纱线,并导致控制系统运行失效的问题,提出应用模态分析技术对经编导纱梳栉进行动力学分析。通过搭建声学振动测试平台,实测经编梳栉的关键动力学参数:阻尼比、固有频率和固有振型,获取反映梳栉单位激振力振幅响应的幅频特性。在此基础上提出经编梳栉高速运行时的减振措施,并经对比实验证明该措施有效,且梳栉振动分析方法正确可行。In the light of the fact that the control system malfunction will occur because of the damage by friction between needles or yarns resulting from the mechanical vibration of shogging motion of guide bars when the knitting machine is running at a high speed.This paper proposed to conduct a dynamic analysis of the guide bars using the modal analysis technology.Based on the built acoustic vibration test platform,the key dynamic parameters of the guide bar are tested,including damping ratio,natural frequencies,and natural vibration mode,so as to get the amplitude features reflecting the frequency response of vibration of the guide bars.And then,the paper puts forward the effective measures of anti-vibration for warp knitting guide bars,and the contrast test results show that the measures are valid,and the vibration analysis method is feasible.

关 键 词：经编机 梳栉 横移运动 振动测试 减振措施 

分 类 号：TS183.3[轻工技术与工程—纺织材料与纺织品设计]