基于虚拟现实（VR）的模切设备行为建模方法及仿真技术研究

发布时间：2018-06-24 14:32

本文选题：模切压力 + 行为建模　；参考：《北京印刷学院》2013年硕士论文

【摘要】：在模切压痕过程中，模切压痕质量取决于模切机的机械精度、模切版的制作精度、模切刀、压痕钢线以及模切材料的合理选用等因素，为了了解不同工况下的模压质量，对模切压力产生机理和影响因素进行了全面深入的分析，对模切压痕工艺过程进行行为建模，并实现工艺过程的可视化仿真。通过从工艺质量的需求出发，来反求机械性能与工艺参数之间的关系，为其他印后包装设备的工艺质量研究提供了参考。本文以平压平模切机为研究对象，对模切压力产生机理和影响因素进行了深入研究；提出了一种基于工艺需求的行为建模方法，对不同工况下模切工艺部分组件包括纸板、刀线、海绵胶条的变形进行有限元分析，得到了各组件的力学特性，并完成工艺行为建模；北京印刷学院数字化制造实验室研发的一种气液增压系统驱动的模切压力试验台是通过油压值来测定模切压力，由实验分析得出了模切压力同工艺各组件参数之间的关系，将仿真分析结果与实验结果对比，深化了对模切压力产生机理的研究；最后结合Visual Studio2008开发环境、开源学引擎OpenSceneGraph（OSG）以及界面设计引擎Qt建立了模切工艺仿真系统，，通过文件格式转换方式将CAD系统中的几何模型输入仿真环境，用户与系统界面交互通过设置工艺各组件参数，实现了在不同工况下模切主机运动过程和模切压痕工艺各组件变形的可视化仿真，通过可视化仿真用户可以预测实际运行效果，对设备关键结构进行优化改进，以期得到目标质量。
[Abstract]:In the process of die - cutting indentation , the quality of die - cutting indentation depends on the mechanical precision of the die - cutting machine , the precision of die - cutting , the die - cutter , the creasing steel wire and the reasonable selection of die - cutting material . In order to understand the quality of die - cutting under different working conditions , the mechanism and influencing factors of die - cutting pressure are analyzed thoroughly .

In this paper , the mechanism and influencing factors of die - cutting pressure are studied in this paper .
In this paper , a method of behavior modeling based on process requirement is put forward , and the deformation of die - cutting process in different working conditions is analyzed by finite element method . The mechanical properties of each component are obtained , and the process behavior modeling is completed .
A kind of gas - liquid pressurization system driven by the digital manufacturing laboratory of Beijing Printing Institute is a kind of gas - liquid pressurization system driven by gas - liquid pressurization system , which is used to measure the die - cutting pressure through the oil pressure value , and the relationship between die - cutting pressure and the parameters of the process is obtained from the experimental analysis , and the simulation analysis result is compared with the experimental results , and the research on the mechanism of die - cutting pressure is deepened ;
Finally , based on the Visual Studio 2008 development environment , open source science engine OpenSeeGraph ( OSG ) and interface design engine QT , a simulation system of die - cutting process is established . By means of file format conversion , the geometric model in CAD system is input into the simulation environment . The visual simulation of the deformation of the die - cutting host moving process and the die - cutting indentation process under different working conditions is realized by means of the file format conversion mode . The visual simulation user can predict the actual operation effect , and optimize the key structure of the equipment to obtain the target quality .
【学位授予单位】：北京印刷学院
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TS803;TP391.9

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