辽宁工程技术大学学报(自然科学版)
遼寧工程技術大學學報(自然科學版)
료녕공정기술대학학보(자연과학판)
JOURNAL OF LIAONING TECHNICAL UNIVERSITY NATURAL SCIENCE EDITION
2013年
1期
93-96
,共4页
切削颤振%频域分析%庞加莱原理%稳定性%强迫振动%刃通过频率%傅里叶变换%振动测试
切削顫振%頻域分析%龐加萊原理%穩定性%彊迫振動%刃通過頻率%傅裏葉變換%振動測試
절삭전진%빈역분석%방가래원리%은정성%강박진동%인통과빈솔%부리협변환%진동측시
cutting chatter%frequency domain analysis%Poincaré principle%stability%forced vibration%blade passing frequency%Fourier transform%vibration testing
利用庞加莱原理,分析了稳定切削与不稳定切削时振动信号频域特征的不同点.搭建了铣削振动检测系统,通过对铣削振动信号的频域分析,验证了铣削强迫振动的频域特征是在低频段的刃通过频率及其二、三倍谐波频率处出现峰值;发生切削颤振时,在高频段出现峰值,因此,振动信号频谱图中非刃通过频率处及其二、三倍谐波频率处出现峰值是发生切削不稳定的结论.
利用龐加萊原理,分析瞭穩定切削與不穩定切削時振動信號頻域特徵的不同點.搭建瞭鐉削振動檢測繫統,通過對鐉削振動信號的頻域分析,驗證瞭鐉削彊迫振動的頻域特徵是在低頻段的刃通過頻率及其二、三倍諧波頻率處齣現峰值;髮生切削顫振時,在高頻段齣現峰值,因此,振動信號頻譜圖中非刃通過頻率處及其二、三倍諧波頻率處齣現峰值是髮生切削不穩定的結論.
이용방가래원리,분석료은정절삭여불은정절삭시진동신호빈역특정적불동점.탑건료선삭진동검측계통,통과대선삭진동신호적빈역분석,험증료선삭강박진동적빈역특정시재저빈단적인통과빈솔급기이、삼배해파빈솔처출현봉치;발생절삭전진시,재고빈단출현봉치,인차,진동신호빈보도중비인통과빈솔처급기이、삼배해파빈솔처출현봉치시발생절삭불은정적결론.
@@@@Utilizing Poincaré principle, this study investigates the differences of milling frequency features between stable and instable milling, and has developed a milling vibration detection system. Through frequency domain analysis of milling vibration signals, the frequency feature of forced vibration is found that the peak point occurs within cutting edge passing frequency and its twice or three times frequency. The feature of the chatter is that the peak point is in the high frequency range. In conclusion, if there is a high peak point in any frequency except the cutting edge passing frequency and its twice or three times frequency, then the cutting state will be unstable.
