超声振动聚合物界面摩擦生热仿真分析Simulation Analysis of Polymer Interfacial Friction Heating under Ultrasonic Vibration
张庆辉;万晨霞;田海港;
摘要(Abstract):
采用ANSYS和LS-DYNA仿真分析超声振动聚合物界面摩擦生热过程,主要分析超声振幅、超声频率和摩擦因数对界面摩擦生热速率的影响规律。研究结果表明:界面摩擦生热能使聚合物温度升高,且生热是瞬态过程,超声振动作用时间0.164 45s,聚合物界面局部温度能升高到160.7℃,生热速率达到855.57℃/s。界面摩擦生热速率随着超声振幅、超声频率和摩擦因数的增加而增大,超声频率对聚合物界面摩擦生热速率的影响更显著。
关键词(KeyWords): 超声振动;界面摩擦生热;生热速率;超声振幅;超声频率
基金项目(Foundation): 国家自然科学基金(U1404617);; 河南省科技开放合作项目(162106000015);; 河南省高校科技创新团队项目(16IRTSTHN026)
作者(Authors): 张庆辉;万晨霞;田海港;
参考文献(References):
- [1]SACRITAN M,PLANTA X,MORELL M.Effect of ultrasonic vibration on the micro-molding processing of polylactide[J].Ultrasonic Sonochemistry,2014(21):376-386.
- [2]吴诗仁,温彤,雷帆.超声振动作用下的聚合物塑化机理的研究[J].塑料工业,2012,40(10):66-69.
- [3]JIANG Bingyan,PENG Huajian,WU Wangqing,et al.Numerical simulation and experimental investigation of the viscoelastic heating mechanism in ultrasonic plasticizing of amorphous polymers for micro injection molding[J].Polymers,2016,8(5):1-12.
- [4]JIANG Bingyan,HU Jianliang,LI Jun,et al.Ultrasonic classification speed of polymer and its influencing factors[J].Journal of Central South University,2012(19):380-383.
- [5]ZHANG Z,WANG X,LUO Y,et al.Study on heating process of ultrasonic welding for thermoplastics[J].Journal of Thermoplastic Composite Materials,2009(22):647-664.
- [6]WU Wangqing,PENG Huajian,JIA Yunlong,et al.Characteristics and mechanisms of polymer interfacial friction heating plasticization for micro injection molding[J].Microsystem Technologies,2017,23(5):1385-1392.