Experiment and Modeling of Dynamic Response System on Virtual Lathe
Experiment and Modeling of Dynamic Response System on Virtual Lathe
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发表时间：
2004
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通讯作者：
Wang Wan-shan
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作者：
Wang Wan-shan
针对虚拟车床加工过程中的振动问题，进行了车床振动响应器在冲击激励下工作的实验研究。根据实验结果，将引起的振动分解为随机振动、强迫振动和再生颤振三部分，并对每一部分进行了建模。分析了主轴转动对受迫振动幅值响应的影响。将所建立的模型应用于车削振动过程的NC仿真，可以更可靠地预测车床加工的物理过程，从而提高了虚拟切削软件的适用性，并将仿真结果与颤振过程实验结果进行了比较，表明所开发的程序是可靠的。
Aiming at the vibration of virtual lathe's cutting operations, an experiment was done that the vibration responder on lathe could be working by shock excitation. Based on experimental results, the cutting vibrations thus causes are decomposed into three parts, i.e. the random and forced vibrations and the regenerated chatter, and each of them is modeled. The effect of spindle rotation on the amplitude responses of forced vibration is analyzed. The models developed are applied to NC simulation of cutting vibration process to predict more reliably the physical process of metal working by lathes, so as to improve the applicability of the virtual cutting software.Compared the results from simulation and from experimentation for chattering process, the program developed can be regarded as reliable.