基于电流变液的深孔钻削颤振抑制研究
发布时间：2019-07-30 19:31
【摘要】：针对目前深孔加工过程中颤振难以抑制,只能通过传统的加工经验判断的问题,提出了一种利用电流变液来抑制的方法.详细分析了电流变液的抑振机理,对比了剪切式、流动式和复合式三种工作模式,选择复合式用于抑制深孔机床钻削颤振;并根据钻削系统的动力学模型,推导出安装电流变液阻尼器后的系统动力学方程;最后利用MATLAB/Simulink仿真验证方法的可行性.振动时域图的对比结果表明,电流变液阻尼器可以有效地抑制钻削过程中颤振的发生.
[Abstract]:In order to solve the problem that flutter is difficult to be suppressed in the process of deep hole machining and can only be judged by traditional machining experience, a method of using electrorheological fluid to suppress flutter is proposed. The vibration suppression mechanism of electrorheological fluid is analyzed in detail, and the shear, fluid and compound working modes are compared, and the compound type is selected to suppress the drilling chatter of deep hole machine tool. According to the dynamic model of drilling system, the dynamic equation of the system after installing electrorheological fluid dampers is deduced. Finally, the feasibility of the method is verified by MATLAB/Simulink simulation. The results of vibration time domain diagram show that electrorheological fluid dampers can effectively suppress flutter during drilling.
【作者单位】： 中北大学机械与动力工程学院;山西省深孔加工工程技术研究中心;
【基金】：科技部国际合作项目(2013DFA70770) 国家自然基金资助项目(51175482)
【分类号】：TG52
本文编号：2521103
[Abstract]:In order to solve the problem that flutter is difficult to be suppressed in the process of deep hole machining and can only be judged by traditional machining experience, a method of using electrorheological fluid to suppress flutter is proposed. The vibration suppression mechanism of electrorheological fluid is analyzed in detail, and the shear, fluid and compound working modes are compared, and the compound type is selected to suppress the drilling chatter of deep hole machine tool. According to the dynamic model of drilling system, the dynamic equation of the system after installing electrorheological fluid dampers is deduced. Finally, the feasibility of the method is verified by MATLAB/Simulink simulation. The results of vibration time domain diagram show that electrorheological fluid dampers can effectively suppress flutter during drilling.
【作者单位】： 中北大学机械与动力工程学院;山西省深孔加工工程技术研究中心;
【基金】：科技部国际合作项目(2013DFA70770) 国家自然基金资助项目(51175482)
【分类号】：TG52
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