基于RecurDyn的新圆弧齿同步带啮合传动性能研究
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摘要
基于多体动力学软件RecurDyn,建立新圆弧齿同步带传动的虚拟样机模型并进行仿真计算。仿真应力云图显示,主、从带轮啮入和啮出处同步带承受载荷最大。对动态虚拟样机啮入和啮出区分析表明,带齿面受载、带挠曲是带载荷增大主要原因,而带齿顶部受载可以有效降低齿根载荷;同步带的多边形效应和啮合冲击产生的系统内部激励,是从动轮角速度波动的主要原因;从动轮速度输出结果表明,速度波动是周期谐波函数。
Based on the multi-body dynamics software RecurDyn,a virtual prototyping model of new arc tooth synchronous belt drive is established and simulated. The simulation stress cloud chart shows the synchronous belt bears the maximum load at the pinch-in and out areas of active and driven pulley. Analysis on dynamic virtual prototypes shows that the tooth surfaces are loaded in the pinch-in and pinch-out areas,and belt deflection are the main reasons for the increase of the band load. And the load on the top of the belt tooth can effectively reduce the root load. The polygon effect of the synchronous belt and the internal excitation of the system caused by the meshing impact are the main reasons for the angular velocity fluctuation of the driven wheel. The research of the output speed of the driven wheel shows that the speed fluctuation is a periodic harmonic function.
Based on the multi-body dynamics software RecurDyn,a virtual prototyping model of new arc tooth synchronous belt drive is established and simulated. The simulation stress cloud chart shows the synchronous belt bears the maximum load at the pinch-in and out areas of active and driven pulley. Analysis on dynamic virtual prototypes shows that the tooth surfaces are loaded in the pinch-in and pinch-out areas,and belt deflection are the main reasons for the increase of the band load. And the load on the top of the belt tooth can effectively reduce the root load. The polygon effect of the synchronous belt and the internal excitation of the system caused by the meshing impact are the main reasons for the angular velocity fluctuation of the driven wheel. The research of the output speed of the driven wheel shows that the speed fluctuation is a periodic harmonic function.
引文
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[4]JOHANNESSON T,DISTNER M.Dynamic loading of synchronous belts[J].Journal of Mechanical Design,2002,124(1):79-85.
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[6]李占国,史尧臣,秦书安,等.基于MFBD的汽车直齿同步带啮合分层立体片研究[J].机械传动,2012,36(9):25-27.
[7]曹忠亮,李杉,郭建华.基于MFBD的同步带传动动载荷仿真分析[J].机械传动,2016,40(9):142-144.
[8]姚廷强,迟毅林,黄亚宇,等.带传动系统的多体动力学建模与接触振动研究[J].系统仿真学报,2009,21(16):4945-4950.
[9]CICOGNANI M.Toothed belt:US 3937094[P].1976-02-10.
[10]郭建华,姜洪源,胡清明,等.新型人字齿同步带传动干涉与啮合仿真分析[J].吉林大学学报(工学版),2015,45(4):1175-1180.
[11]姜洪源,郭建华,胡清明,等.基于高阶接触啮合理论的新型人字齿同步带传动设计[J].机械传动,2013,37(8):17-20.
[2]SHIMIZU K,FUJII T.A simple modeling for analyzing the load distribution of toothed belts under fluctuating torque loading[J].SAETechnical Paper,1995:950542.
[3]UCHIDA T,FURUKAWA Y,TOMONO K,et al.Pitch difference and belt tooth configuration effect on load distribution of a timing belt using FEM analysis[J].JSAM Review,1997,18(2):200.
[4]JOHANNESSON T,DISTNER M.Dynamic loading of synchronous belts[J].Journal of Mechanical Design,2002,124(1):79-85.
[5]MILANOVIC I,STOJANOVIC B,BLAGOJEVIC M,et al.Influence of torque variation on timing belt drive's load distribution[C].IRMES 2011,Serbia,2011:559-562.
[6]李占国,史尧臣,秦书安,等.基于MFBD的汽车直齿同步带啮合分层立体片研究[J].机械传动,2012,36(9):25-27.
[7]曹忠亮,李杉,郭建华.基于MFBD的同步带传动动载荷仿真分析[J].机械传动,2016,40(9):142-144.
[8]姚廷强,迟毅林,黄亚宇,等.带传动系统的多体动力学建模与接触振动研究[J].系统仿真学报,2009,21(16):4945-4950.
[9]CICOGNANI M.Toothed belt:US 3937094[P].1976-02-10.
[10]郭建华,姜洪源,胡清明,等.新型人字齿同步带传动干涉与啮合仿真分析[J].吉林大学学报(工学版),2015,45(4):1175-1180.
[11]姜洪源,郭建华,胡清明,等.基于高阶接触啮合理论的新型人字齿同步带传动设计[J].机械传动,2013,37(8):17-20.