Traveling Wave Driving Mechanism And Experiment Research For Hybrid Suspension Of Ultrasound Suspension And Pneumatic Suspension

With the rapid growth of technology and industry, some of the new technology is alsoconstantly being improved, but also on the existing precision delivery platform put forwardnew requirements. Because of traditional contact delivery platform is bound to causefriction, heat and other physical phenomena. Bring rigid structure will be accompanied bymechanical vibration, energy consumption and other issues. In this thesis, there is a strongcapacity pneumatic suspension and ultrasonic wave is capable of driving the twocharacteristics, the paper introduces ultrasonic suspension/flotation mixed suspension waysto accomplish the object of transport.From the air bearing structure and the disc and the air has a good performance ofthese two starting impedance matching, this paper uses a piezoelectric transducer is apiezoelectric transducer disc. By using a solid elastic vibration theory and thevertical-bending mode piezoelectric transducer disk curved design theory. Thepiezoelectric disc is given of the structure of the transducer size.Thereafter, the two ANSYS and COMSOL simulation software disc and disc vibratorpiezoelectric transducer for structural optimization design to arrive disc vibration modepiezoelectric vibrator and sandwich-type disc piezoelectric transducer distribution of soundpressure to finalize the disc itself, accurate data, and trial of the experimental prototype.More on disc sandwich piezoelectric transducer resolve this mixed suspension suspensioncharacteristics laid a theoretical and experimental basis. Finally suspended from theultrasonic flotation suspension combined with a hybrid suspension experiment: thepneumatic suspension work, joined the ultrasound suspension system, first ensure that theoriginal pneumatic suspension supporting the vibration amplitude of maintaining pneumaticsuspension system is suspended height of an object, the second is to improve the bearingcapacity of the suspended platform itself; Moreover, this hybrid is greater than the capacityof ultrasound suspended suspension and pneumatic suspension, both working alone andbearing capacity.The paper also uses a vibrating-vibration absorption method, as wave formationmethod. Eular-Bernouli using beam theory and the resonance of the transducer equivalent circuit, the piezoelectric transducer distance and position of the selection, and the receivetransducer impedance matching two problems are analyzed,ANSYS software using the transducer on a supporting force of the vibrating plate andthe whole mixed suspension transportation system modal analysis, by adjusting thefrequency so that the mixed suspension transport system can inspire a highly efficientvibration wave. The article also constructed mixed suspension transportation system, andmade relevant experimental tests. The conclusion that the hybrid can achieve greater weightof objects suspended non-contact transport. And then come to a hybrid suspension transportrelated characteristics.Through the mixed suspension characteristics, this paper also found in the mixedsuspension systems, pneumatic suspension ultrasonic levitation can improve working alonecyclonic phenomena and hammer vibration than a single flotation device when workingalone has a higher suspension stiffness and can be cut little tiny flotation device itself hasthe characteristics of low-frequency vibration, so this part of the paper also discussed andanalyzed. And thus declared a national invention patent (patent number:201110414297.2)...