中国机械工程 ›› 2015, Vol. 26 ›› Issue (16): 2143-2148.

• 机械基础工程 • 上一篇    下一篇

基于摩擦耗能原理的抑振镗杆

闫俊霞1,2;区炳显3,4   

  1. 1.江南大学,无锡 214122
    2.江苏省食品先进制造装备技术重点实验室,无锡,214122
    3.江苏省特种设备安全监督检验研究院无锡分院,无锡,214174
    4.国家桥门式起重机械产品质量监督检验中心,无锡,214174
  • 出版日期:2015-08-25 发布日期:2015-08-25
  • 基金资助:
    国家自然科学基金资助项目(51275210);中央高校基本科研业务费专项资金资助项目(JUSRP11210) 

Chatter Depression of Boring Rod Based on Friction Energy Dissipation

Yan Junxia1,2;Ou Bingxian3,4   

  1. 1.Jiangnan University,Wuxi,Jiangsu,214122
    2.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology(Jiangnan University),Wuxi,Jiangsu,214122
    3.Jiangsu Province Special Equipment Safety Supervision Inspection Institute,Branch of Wuxi,Wuxi,Jiangsu,214174
    4.National Center of Supervision and Inspection on Product Quality of Overhead Gantry Crane Machinery,Wuxi,Jiangsu, 214174
  • Online:2015-08-25 Published:2015-08-25
  • Supported by:
    National Natural Science Foundation of China(No. 51275210);Fundamental Research Funds for the Central Universities( No. JUSRP11210)

摘要:

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。 

关键词: 镗杆, 摩擦减振器, 颤振, 响应计算

Abstract:

 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 variables 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 stability theory, vibration suppression effects of boring rod were analyzed under different friction conditions. 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 energy 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.

Key words: boring rod, friction damper, chatter, response computation

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