m,provides a theoretical basis for the further optimization design ofthe computerized flat·knitting machine’s loop system. (1)Systematic study the computerized fiat·knitting machine’s loop system’s composition and working principle at home and abroad,focused 00 the analysis of the principle of needle election,what provide the necessary theoretical foundation for computerized flat-knitting machine’s ANSYS analysis (2)Experimental analysis for the existing computerized flat-knitting machine’8 loop cam system.improve the accuracy of loop system’‘technological parameters and the technological requirements,provided accurate technological parameters for ANSYS analysis modeling of loop system,ensure correctness of the reSuIts of the modeling analysis. 13)Thesis systematic make analysis and research on computerized flat—knitting machine’s loop system’s mechanical dynamic stress conditions,determine the mechanical binding constraints in ANSYS/LS—DYNA 111between mechanics relationship and model,complete the modeling of mechanical of computerizedflat.knitting machine’S loop system,research on the unit type,material model,contact type,mesh,and otherissues,further study on the method of mesh technology,solving the key technological issues during theprocess of the modeling analysis. f4)Application of ANSYS/LS·DYNA analysis software.make a modeling analysis on computerizedflat-knitting machine’S loop system,and get instantaneous impact dynamics and transient conditions betweenknitting needles and cams further study the loop mechanical’S dynamic movement parameters and mechanicalparameters during loop、shifting loop and tuck.Through the ANSYS movement simulation,get the changingrelation between nose velocity and loop mechanical’S instantaneous vertical impact. r5)Through the ANSYS simulation analysis of computerized fiat·knitting machine’S loop system,get theprecise value of the loop mechanical’s instantaneous impact under the conditions of different nose velocity,provides a theoretical basis for the further optimization design of the computerized fiat—knitting machine’S loop and tongue needle.system,and proposed the optimal design of cam curve This paper is the major research topics of research and development of computerized flat—knittingmachine,the key is the systematic theory research and analysis of computerized flat-knitting machine’loop mechanical.On the basis of in-depth study of the imported computerized flat—knitting machine,try touse ANSYS analysis technology to analysis loop mechanicals’instantaneous dynamics of computerizedflat.knitting machine,make structural optimization analysis combined with the results of analysis,research results provided technical draw for the research of computerized flat·knitting machineslocalization in the fhttire.KeyWords:Computerized flat—knitting machine loop system ANSYS analysis ANSYS/LS—DYNAKnitting needle impact lV 浙江理工大学学位论文原创性声明 本人郑重声明:我恪守学术道德,崇尚严谨学风。
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学位论文作者签名:谵.酗孥 日期:弘叼年1月儿同‘ 浙江理工大学学位论文版权使用授权书 学位论文作者完全了解学校有关保留、使用学位论文的规定,同意学校保留并向国家有关部门或机构送交论文的复印件和电子版,允许论文被查阅或借
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