R ealizing Longitudinal-torsional Compound Vibration with Conical Composite Horn
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摘要: 为解决纵-扭复合振动超声加工中复合振动的实现难题,对单激励纵-扭复合振动圆锥形复合变幅杆展开研究。基于变截面杆一维纵向振动和扭转振动理论,推导出圆锥形复合变幅杆纵向振动和扭转振动的频率方程,并确定其振动特性参数。阐释了单激励下圆锥形复合变幅杆纵-扭复合振动的实现机理,并通过应用实例给予验证。理论计算、数值分析与测试结果表明,选择合适的几何结构参数,圆锥形复合变幅杆可以实现纵-扭复合振动。Abstract: It is difficult to realize the longitudinal-torsional compound vibration during the ultrasonic machining, we study the conical composite horn under single excitation. We derive the longitudinal vibration frequency equation and the torsional vibration frequency equation of the conical composite horn by using the theory of longitudinal vi-bration and torsional vibration of a one-dimensional variable cross-section bar, thus obtaining the vibration charac-teristics parameters. We explain the mechanisms of longitudinal-torsional compound vibration with the conical com-posite horn under single excitation and verify them with a practical application. The results of theoretical calcula-tion, numerical study and experimental tests show that the longitudinal-torsional compound vibration can be realized with the conical composite horn when the appropriate geometrical parameters are chosen.
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[1] Tsujino J,Veoka T,Kashino T,et al.Transverse and torsional complex vibration systems for ultrasonic seam welding of metal plates[J]. Ultrasonics,2000,38(1~8):67~71 [2] 皮钧,徐西鹏.纵扭共振超声铣削研究[J].中国机械工程,2009,20(10):1163~1169 [3] 杨淋,赵淳生.大力矩应力型纵扭复合超声电机[J].振动、 测 试与诊断,2012,32(S1):126~131 [4] 杨淋,丁庆军,赵淳生等.斜槽式纵扭模态转换型超声电机在 不同摩擦副下的负载特性研究[J]. 中国电机工程学报,2010,30(15):94~30 [5] 皮钧.圆环斜槽传振杆的纵扭振动转换[J].机械工程学报,2008,44(5):242~248 [6] Jiromaru T.One-dimensional longitudinal-torsional vibration con-verter with multiple diagonally slitted parts[J].Ultrasonics,2000,38(1~8):72~76 [7] 易幼平,钟掘.复合型超声马达纵-扭振动固有频率简并研究[J]. 振动工程学报,2005,18(2):194~199 [8] 林书玉.大振幅纵-扭复合振动模式超声变幅杆[J].压电与 声光,2002,24(1):81~84 [9] 赵文凤,郭钟宁,唐勇军.新型超声振动结构的研究进展[J].机床与液压,2010,38(15):109~113 [10] 林仲茂著.超声变幅杆的原理和设计[M].北京:科学出版社,1987
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