Dynamic damping boring bar is an effective approach to avoid chatter in deep hole boring. In order to design the vibration absorber, it is necessary to identify the equivalent mass and stiffness at the location where the absorber is installed.Due to the low identification efficiency of the traditional method accompanied with both experiments and simulations, a new efficient mathematical model method was proposed to identify the equivalent parameters. Based on the Euler-Bernoulli beam theory and the maximum kinetic energy conservation principle, the mathematical model was established, and the formula for deriving the equivalent mass of damping boring bar’s main system was presented. Then, all the equivalent parameters were calculated. Compared with the traditional identification method, the new mathematical method can accurately calculate the equivalent parameters, and improve the design efficiency of dynamic damping boring bars. Besides, the new mathematical method can also be applied to identify the kinetic equivalent parameters for other beams.
Key words
dynamic damping boring bar /
equivalent parameters /
mathematical model method
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] Sims Neil D. Vibration absorbers for chatter suppression: A new analytical tuning methodology[J]. Journal of Sound and Vibration, 2007, 301(3-5): 592-607.
[2] 罗红波，李红梅，程宏伟，等. 内置式减振镗杆动力学模型的参数优化[J]. 四川大学学报，2009，41(6)：200-204.
LUO Hongbo, LI Hongmei, CHEN Hongwei, et al. Parameter Optimization of Built-in Damping Boring Bar Kinetic Mode [J]. Journal of Sichuan University, 2009, 41(6): 200-204.
[3] Miguelez M.H, Rubio L, Loya J.A. Improvement of chatter stability in boring operations with passive vibration absorbers[J]. International Journal of Mechanical Sciences, 2010,52(10):1376-1384.
[4] Rubio L, Loya J.A, Miguelez M.H. Optimization of passive vibration absorbers to reduce chatter in boring[J]. Mechanical Systems and Signal Processing, 2013,41(1-2):691-704.
[5] Houck III Lonnie, Tony L, Scott Smith K. A tuned holder for increased boring bar dynamic stiffness[J]. Journal of Manufacturing Processes, 2011,13(1):24-29.
[6] 杨月婷，高国生，张作良. 半主动动力吸振镗杆系统的颤振抑制机理[J]. 石家庄铁道大学学报，2014，27(3)：55-58.
YANG Yueting, GAO Guosheng, ZHANG Zuoliang. Chatter Suppression Mechanism of Semi-active Damping Boring Bar System [J]. Journal of Shijiazhuang Tiedao University, 2014, 27(3): 55-58.
[7] Rashid A, Nicolescu C M. Design and implementation of tuned viscoelastic dampers for vibration control in milling [J]. International Journal of Machine Tools & Manufacture, 2008, 48(9):1036-1053.
[8] Akesson Henrik, Smirnova Tatiana, Hakansson Lars. Analysis of dynamic properties of boring bars concerning different clamping conditions[J]. Mechanical Systems and Signal Processing, 2009,23(8):2629-2647.
[9] Sortino M., Totis G, Prosperi F. Modeling the dynamic properties of conventional and high-damping boring bars[J]. Mechanical Systems and Signal Processing, 2013, 34(1-2): 340-352.
[10] Moetakef-Imani B, Yussefian N.Z. Dynamic simulation of boring process[J]. International Journal of Machine Tools & Manufacture, 2009, 49(14): 1096-1103.
[11] Waydande Shrikant, Mahajan D. A, Gajjal S. Y. A Review on Vibration attenuation of Boring Bar by using Passive Dampers[J]. International Journal of Emerging Technology and Advanced Engineering, 2014, 4(4): 117-122.
[12] 何山，杨志坚，丁康，等. 基于正交多项式法的动力吸振器安装点的等效质量识别[J]. 振动与冲击，2014，33(24)：211-214.
HE Shan, YANG Zhijian, DING Kang, et al. Estimating equivalent mass of a dynamic vibration absorber at mounting point based on method of orthogonal polynomials [J]. Journal of Vibration and Shock, 2014, 33(24): 211-214.
[13] Kazuto S, Masaaki O, Shigeo Y, et al. Method of Estimating Equivalent Mass of Multi-degree-of-freedom System[J]. JSME International Journal, 1987, 30(268): 1638-1644.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
PDF(1351 KB)
