【摘要】：針對使用再生顫振理論建立的銑削動力學模型,提出了一種基于三階龍格庫塔法用于預測銑削穩(wěn)定性的半解析方法。首先,以狀態(tài)空間方程的形式表示動力學微分方程;其次,利用三階龍格庫塔法推導出傳遞矩陣;最后利用Floquet理論判斷特定切削狀態(tài)下的穩(wěn)定性,進而獲得銑削穩(wěn)定性葉瓣圖。通過與半離散法的仿真結果進行對比發(fā)現(xiàn),基于三階龍格庫塔法的銑削穩(wěn)定性求解方法具有更高的預測精度和計算效率。
[Abstract]:Based on the dynamic model of milling based on regenerative flutter theory, a semi-analytical method based on third-order Runge-Kutta method is proposed to predict milling stability. First, the dynamic differential equation is expressed in the form of the state space equation; secondly, the transfer matrix is derived by using the third order Runge-Kutta method; finally, the stability of the milling stability is judged by the Floquet theory, and the stable leaf lobe graph of milling is obtained. By comparing with the simulation results of semi-discrete method, it is found that the method based on the third-order Runge-Kutta method has higher prediction accuracy and computational efficiency.
【作者單位】： 湖南工業(yè)大學機械工程學院;
【基金】：國家自然科學基金資助項目(51375160,51375161) 國家科技重大專項資助項目(2012ZX04011-011)
【分類號】：TG54

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本文編號：2379932