本文選題：直線超聲電機 + 結構優(yōu)化設計��； 參考：《振動與沖擊》2017年07期

【摘要】：設計了一種一端鉸支的V型直線超聲電機,旨在找到一種輸出效率更高、更利于小型化的定子結構。利用有限元軟件分析了定子不同結構參數(shù)對模態(tài)一致性和驅動足處振幅的影響規(guī)律;基于結構參數(shù)的靈敏度的分析,對定子結構進行了優(yōu)化設計。制作了45°、60°和90°三種不同角度的定子,并開展了電機機械特性的實驗研究;實驗結果表明,相對原有的U型電機,V型電機的模態(tài)一致性更好,輸出速度和輸出力有很大提高。在夾角為90°、激勵電壓為300Vpp、預壓力為40 N時,電機空載速度提升了66.8%,負載能力提升了55%,最大空載速度達到784 mm/s,最大輸出力達到14 N,推重比達70。研究表明:夾持元件與定子一體化設計和一端鉸支的夾持方式簡化了電機的結構,有利于直線超聲電機的小型化;V型定子夾角為90°時,綜合輸出性能及穩(wěn)定性更好。
[Abstract]:A V-type linear ultrasonic motor with one end hinged is designed to find a more efficient and miniaturized stator structure. The influence of different structural parameters on modal consistency and amplitude of driving foot is analyzed by using finite element software, and the structure of stator is optimized based on the sensitivity analysis of structural parameters. The stator with different angles of 45 擄60 擄and 90 擄is made, and the experimental study on the mechanical characteristics of the motor is carried out. The experimental results show that the modal consistency of the V-type motor is better than that of the original U-type motor, and the output speed and output force are greatly improved. When the angle is 90 擄, the excitation voltage is 300 V / p, and the prepressure is 40 N, the speed of the motor is increased by 66.8%, the load capacity is increased by 55%, the maximum no-load speed is up to 784 mm / s, the maximum output force is 14 N and the push-weight ratio is 70%. The results show that the integrated design of clamping element and stator and the clamping mode of one end hinged support simplify the structure of the motor and are beneficial to the miniaturization of the linear ultrasonic motor, and the comprehensive output performance and stability are better when the angle of V-type stator is 90 擄.
【作者單位】： 南京航空航天大學機械結構力學及控制國家重點實驗室;
【基金】：國家自然科學基金資助項目(51275229) 國家重大儀器設備開發(fā)專項(2012YQ100225)
【分類號】：TM359.9

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本文編號：2068839