河北科技大学学报2017，Vol.38Issue(4)：313-319,7.DOI:10.7535/hbkd.2017yx04001
近场超声悬浮平台模态振型优化设计及可行性分析
Modal shapes optimization and feasibility analysis of NFAL platform
摘要
Abstract
In order to avoid friction and scratching between the conveyor and the precision components when conveying object, an compact non-contact acoustic levitation prototype is designed, and the feasibility is theoretically and experimentally verified.The symmetry model is established through kinetic analysis with ANSYS.The modal and the coupled field computation at the central point of the transfer platform are simulated.The simulation results show that pure flexural or mixed flexural wave shapes appear with different wave numbers on the platform.Sweep frequency test is conducted on the compact platform prototype.The levitation experimental results confirm the feasibility of the ultrasound transfer process, the levitation frequency range and the mode of vibration.The theoretical and experimental results show that the optimal design of the modal and the carrying capacity of the driving platform is necessary according to different conditions.The research results provide a reference for the design of the mode and bandwidth of the ultrasonic levitation platform.关键词
摩擦学/近场超声悬浮/谐振/模态振型/正交波形Key words
tribology/near field ultrasound levitation/resonance/modal shapes/orthogonal waves分类
机械制造引用本文复制引用
魏彬,BUCHER I,ATHERTON M,STOLASKI T A..近场超声悬浮平台模态振型优化设计及可行性分析[J].河北科技大学学报,2017,38(4):313-319,7.基金项目
国家自然科学基金(51605250) （51605250）
北京市自然科学基金(L161001) （L161001）
博士后科学基金(2017T100071) （2017T100071）
