| 基于砂轮进给率和磨削功率的内圆磨削系统分析 |
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| 引用本文： | 邱立峻,杨佳.基于砂轮进给率和磨削功率的内圆磨削系统分析[J].辽东学院学报(自然科学版),2010,17(4). |
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| 作者姓名： | 邱立峻 杨佳 |
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| 作者单位： | 辽东学院机电学院,辽宁,丹东,118003;辽东学院机电学院,辽宁,丹东,118003 |
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| 摘 要： | 分析了将砂轮进给率做为输入参数和磨削功率做为输出参数的内圆磨削系统的动态模型及其传递函数。基于该系统的结构和组成环节,首先确定了系统模型,然后将在不同砂轮进给率下实测的两组功率数据用于系统分析,其中的一组数据用于系统参数的识别,另一组用于验证所识别的参数。以数控化改造的内圆磨床为例,采用ARX和ARMAX方法来识别系统参数,将进给率做为输入、磨削功率做为输出的参数传递路径,分析识别内圆磨削过程的系统传递函数,用于分析数控化改造内圆磨床的稳定性和仿真系统的输出功率的变化规律;通过功率谱密度函数分析磨削过程的系统误差和工件毛坯偏差。分析结果表明输出信号中的干扰(噪声)来源于被磨工件内圆表面的偏心和表面波纹。该分析结果可用于内圆磨削选择进给率参数、分析磨削系统和磨削表面质量的依据。
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| 关 键 词： | 内圆磨削 磨削系统 传递函数 磨削功率 |
Internal Grinding System Analysis Based on Grinding Wheel Feed Rate and Grinding Power |
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| QIU Li-jun,YANG Jia.Internal Grinding System Analysis Based on Grinding Wheel Feed Rate and Grinding Power[J].Journal of Liaodong University：Natural Sciences,2010,17(4). |
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| Authors: | QIU Li-jun YANG Jia |
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| Affiliation: | QIU Li-jun,YANG Jia(College of Mechanical and Electrical Engineering,Eastern Liaoning University,Dandong 118003,China) |
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| Abstract: | With wheel feed rate as the input parameter and grinding power as the output parameter,the dynamic model and transfer function of internal grinding system were analyzed.The model of the system was firstly established.Two groups of power data were tested with different grinding wheel feed rates,in which one group was used to identify the systematic parameters and the other was used to validate them.A CNC internal grinder was selected as an example.Its systematic parameters were identified with ARX and ARMAX ... |
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| Keywords: | internal grinding grinding system transfer function the grinding power |
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