本論文主要為利用主動相位配合(Active Phase Match)之概念，設計新型線型行波超音波馬達之定子結構及分析其驅動機制，用以改善傳統被動吸振型式用以產生行波之缺點。本研究針對樑(Beam)分別提出兩種可產生行波之方法；第一種方法為藉由樑側向振動理論配合行波方程式推論得知；第二種方法則輔以ANSYS軟體分析，探討當行波行進於半無限長(Semi-infinite)之樑上，樑之阻尼效應以及位置差異對質點側向位移之振幅與相位差造成之影響。
　　本論文並基於上述提出於樑上產生行波之方法，分別設計兩種不同形式之壓電致動硬體架構；第一種創新、結構簡單之架構，為藉由兩組四片壓電片直接黏貼於樑上致動；第二種架構則為藉由藍杰文振動子(Langevin Vibrator)致動，產生具有振幅放大之效果，最後透過ANSYS軟體模擬與量測實驗用以驗證本研究所提出設計概念之可行性。結構表面質點之橢圓形運動軌跡以及駐波比則為本文探討行波性能之主要指標。

　This thesis is primarily concerned with the novel stator design of a traveling wave type linear ultrasonic motor and the analysis of its driving methods. Continuous traveling wave can be achieved on the stator by adopting the active phase match technique instead of the passive vibration absorption methods. In the study, the Bernoulli-Euler beam is discussed, and two driving mechanisms to generate traveling wave are presented. One method uses the beam’s lateral vibration theory associated with the traveling wave representation. The other method, assisted by finite element analysis, discusses the influence on the amplitude and phase differences of the lateral displacement of the surface particles due to the beam’s damping effect and the diverse locations between the particles when a traveling wave propagates on a semi-infinite beam.
　Furthermore, this thesis proposes two different actuating techniques with piezoelectric materials. One is a novel compact structure combining four piezoelectric patches and an aluminum beam, and the other is the actuation with Langevin vibrators. The finite element software ANSYS is used to analyze the feasibility of the proposed stator, which is then verified by experimental studies. The results demonstrate the feasibility of the proposed designs.

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