中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2015年
16期
2143-2147,2148
,共6页
镗杆%摩擦减振器%颤振%响应计算
鏜桿%摩抆減振器%顫振%響應計算
당간%마찰감진기%전진%향응계산
boring rod%friction damper%chatter%response computation
讨论了摩擦耗能镗杆的原理，建立了有非线性库仑干摩擦环节的力学模型，并以摩擦参数为变化量，通过数值分析的方法考察了模型的吸振效果。研制了一种基于摩擦减振的新型镗杆，结合颤振发生的机理与切削稳定性理论，分析了不同摩擦条件下镗杆的抑振效果。将不同摩擦条件下的镗杆切削实验结果与理论模型仿真结果进行对比，发现在既定的摩擦阻尼器中，有滑动摩擦与粘接两个状态，而且存在一个最优正压力使得滑动摩擦消耗能量达到最大值又不处于粘接的状态，此时系统抑振效果达到最佳。切削实验发现基于摩擦减振原理的镗杆有良好的颤振抑制效果。
討論瞭摩抆耗能鏜桿的原理，建立瞭有非線性庫崙榦摩抆環節的力學模型，併以摩抆參數為變化量，通過數值分析的方法攷察瞭模型的吸振效果。研製瞭一種基于摩抆減振的新型鏜桿，結閤顫振髮生的機理與切削穩定性理論，分析瞭不同摩抆條件下鏜桿的抑振效果。將不同摩抆條件下的鏜桿切削實驗結果與理論模型倣真結果進行對比，髮現在既定的摩抆阻尼器中，有滑動摩抆與粘接兩箇狀態，而且存在一箇最優正壓力使得滑動摩抆消耗能量達到最大值又不處于粘接的狀態，此時繫統抑振效果達到最佳。切削實驗髮現基于摩抆減振原理的鏜桿有良好的顫振抑製效果。
토론료마찰모능당간적원리，건립료유비선성고륜간마찰배절적역학모형，병이마찰삼수위변화량，통과수치분석적방법고찰료모형적흡진효과。연제료일충기우마찰감진적신형당간，결합전진발생적궤리여절삭은정성이론，분석료불동마찰조건하당간적억진효과。장불동마찰조건하적당간절삭실험결과여이론모형방진결과진행대비，발현재기정적마찰조니기중，유활동마찰여점접량개상태，이차존재일개최우정압력사득활동마찰소모능량체도최대치우불처우점접적상태，차시계통억진효과체도최가。절삭실험발현기우마찰감진원리적당간유량호적전진억제효과。
Principles of boring rod with friction energy dissipation were discussed,a mechanics model with nonlinear Coulomb dry friction link was established,and taking friction parameters as var-iables the vibration absorbing performance was studied through numerical analysis.A new type boring rod was developed based on friction damping principles,combining flutter mechanism and cutting sta-bility theory,vibration suppression effects of boring rod were analyzed under different friction condi-tions.Contrasting the results of cutting experiments with theoretical simulation,it has sliding friction state and adhesive state in established friction damper,and there is a positive pressure that makes en-ergy consumption by sliding friction to reache the maximum but the system is not in the adhesive state,at this time the system achieves the best vibration suppression effect.Cutting experiments show that the boring rod with friction damping has good effect of chatter suppression.periments show that the boring rod with friction damping has good effect of chatter suppression.
