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WEI Bin,BUCHER I,ATHERTON M,STOLASKI T A.Modal shapes optimization and feasibility analysis of NFAL platform[J].Journal of Hebei University of Science and Technology,2017,38(4):313-319
Modal shapes optimization and feasibility analysis of NFAL platform
Received:October 10, 2016  Revised:April 20, 2017
中文关键词:  摩擦学  近场超声悬浮  谐振  模态振型  正交波形
英文关键词:tribology  near field ultrasound levitation  resonance  modal shapes  orthogonal waves
Author NameAffiliationE-mail
WEI Bin State Key Laboratory of Tribology Tsinghua UniversityCorporate Technology Siemens buaaweibin@126.com 
BUCHER I Faculty of Mechanical Engineering Israel Institute of Technology  
ATHERTON M College of Engineering Design and Physical Sciences Brunel University  
STOLASKI T A College of Engineering Design and Physical Sciences Brunel University  
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      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.
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